MRCA Discussion - October 2, 2010

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Gaur
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Re: MRCA Discussion - October 2, 2010

Post by Gaur »

Cain Marko wrote:
Gripen's looks are deceiving (just like Tejas). Even though it is a light aircraft, it seems to forget that when it comes to payload. Its payload of 7.2 tonnes is comparable to 7.5 tonne of much larger Typhoon.
When did they manage to get the Gripen to carry 7.2 tonnes? IIRC it was struggling at 6000kg not too long ago. 7000kg (empty) + 3400kg (internal fuel) + fluids/pylons (600kg) + 6000kg (weapons) = 16000kg MTOW.

First they suggest an empty weight of 7100kg for the NG with a payload of 6000kg, a little later they scale it down to around 6800kg (empty) and now the payload just shot up by 1200kgs! Bloody overachieving Swedes!

CM
7200kg is the SAAB's official figure for Gripen NG's payload.
http://www.saabgroup.com/en/Air/Gripen- ... Gripen-IN/
Last edited by Gaur on 09 Nov 2010 19:19, edited 1 time in total.
Austin
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Re: MRCA Discussion - October 2, 2010

Post by Austin »

^^^ Every time I look at Gripen-NG I am amazed how a small single engine aircraft can have the right combination of avionics ,sensors , payload and range to match any mission role.

Irrespective if Gripen-IN wins the MMRCA race or not , I have deep appreciation for SAAB that they could come up with a innovative product and stand along with the biggies.
Karan M
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

Gaur,

Checking on EWS39:
http://www.janes.com/articles/Janes-Rad ... weden.html

Indicates it is more of a passive suite (note reference to electronic support measures), with a central controller, while reports suggest the Gripen introduces a dedicated modern internal jammer in the NG variant. Gen.1, pre 2009 had a simpler noise jammer. Gen 2 "would" introduce DRFM.

Eitherways, Praetorian and Spectra, both of which will be matured over time, are more powerful and comprehensive systems. Plus the Spectra even relies on AESA arrays for jamming, power apart, it makes beam steering and response much more accurate.

Now:
Now regarding sortie rate. True, if an aircraft becomes a sitting duck with high load, then high sortie rates would do you no good in a heavy AD environment. However, I hope you would agree that with full load, every fighter will become a brick in the air.
Not so. Because, you are missing the point that even with a heavy load, thanks to the wing loading aspect, the larger fighters have better capabilities to escape from an integrated air defense, whereas the smaller fighter suffers a larger penalty, and depends more on onboard defense aids.
So, in a heavy air defence environment, no 4th gen fighter would be able to go alone on strike roles with impunity while carrying max possible payloads. That is where PAK-FA and hopefully MCA would be needed. However, for any other roles (air defence/superiority, CAS etc), I do not see Gripen being much behind other Eurobirds. Gripen's situational awareness due to its data link should also help it a lot for any role. In fact, I feel that link 16 should make Gripen the most AWACs independent fighter among all the Eurobirds.
The issue is not of carrying maximum load as that's unlikely to occur unless one has air dominance already, but a heavy load, including fuel, but wing loading makes the smaller fighter more restricted. Second, for air defense/air superiority, Gripen still comes in behind the others IMO, but especially the EF, because of kinematic performance, as well as inferior sensors (the EF will have a much higher power radar).

That apart, "Link-16" is not a Gripen USP, it can be retrofitted to both the Rafale and EF, and is actually irrelevant to Indian needs, because India will not operate the US Link 16 but the IAF's own Operational Data Link which is currently underway.

The reason why a high power radar is preferable is because on offensive operations or in conditions where an AWACS is not available, the strike package will be dependent on its own sensors.

Coming to sortie rates:
I also understand your point that sortie rates required from fighters depend upon various factors. But IMO, considering IAF's fighter strength, vastness of our borders and the capability of our potential adversaries, number of sorties required/day would be as high as the pilots and ground crew can possibily handle....regardless of all the permutations of any no of factors
Again, I am not making the point that that sortie rates are not important, but noting that mission effectiveness per sortie, and aircraft required per mission are equally important. In other words, if you need x Gripens for a target, that would require a lesser number of Eurofighters, the sortie advantage is no longer as overwhelming as it first appears.

Similar is the case when you consider the Kargil conflict which is the nearest and offers the most valid reasons, why did the Mirages pull so many sorties? Because, in part when the other older MiGs could not handle the task, we tended to rely more and more on Mirages. So as you can see this gives us the example that any aircraft in theater should be perfectly capable of meeting all available requirements, as versus relying on a type introduced from elsewhere.

Going forward, Eastern Command will have both Su-30 MKI and MMRCA, both types should be perfectly capable of handling all the diverse tasks expected of them, and not having to rely on one type (Su-30) because the other can't. A marginal difference in sortie rates will not compensate.

Note also, that the Rafale was designed for heavy strike from day one, with dedicated radar/autopilot modes for the same. While Eurofighter, was designed as a heavy air superiority aircraft, while it may not be as optimal as the Rafale, its airframe can handle heavy loads/combinations reasonably well.

The MMRCA has to remain in service till 2040-50. It has to compensate for any shortfall and delays in the PAKFA induction as well, which are likely to occur (as is common with such ambitious programs).
Austin wrote: ^^ Every time I look at Gripen-NG I am amazed how a small single engine aircraft can have the right combination of avionics ,sensors , payload and range to match any mission role.
The great advantage the Gripen team had, was absolute unfettered access to both European (Selex radar, optics, weaponry) and American aerospace technology (actuators, avionics, engines). If the Russians had similarly "looked outward" for more of the MiG-35 systems, at least Europe, they would have a winner on their hands, if not the Indian competition, then others. Incidentally, the Gripen approach does make multinational technology transfer and logistics subject to far more complications, so the Russians may feel their own approach is still justified, especially as it brings money to their own vertically integrated industry.
Lalmohan wrote:sortie rate and/or time in air
we will see much more use of aerial refueling and PGm strikes leading to longer missions
Very valid points, but one thing, that dedicated aerial refuellers as high value targets will be prized targets for both sides, and limited in number. Especially in the Chinese theater, the presence of long range SAMs able to reach out to high altitude, makes their operation more complicated than before. Hence, buddy refuelling is more likely. Refuellers will be used to top up tanks after "heavy take offs" and for assisting aircraft recovery on the way back.
Cain Marko
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Re: MRCA Discussion - October 2, 2010

Post by Cain Marko »

Gaur wrote:7200kg is the SAAB's official figure for Gripen NG's payload.
http://www.saabgroup.com/en/Air/Gripen- ... Gripen-IN/
Gaur, that is just clever marketing, the Gripen NG's payload remains around 6 tonnes. The 7.2 tonne figure they use would be achievable only after a compromise on internal fuel. IOWs, the Gripen NG at 7000kg (empty) + 3400kg (internal fuel max - 40% increase over C version) + 6000kg (external payload) ~ 16.5 tonnes (MTOW). There is simply no way that payload can be 7200kg unless it suddenly dropped 1 tonne empty weight!

So what they do in that brochure is simply show figures without full internal fuel load, which is misleading and allows one to compare it to larger MRCA birds such as the EF-2000. In the case of the Typhoon, the weights clearly show this:

11200kg (empty)
5000kg (max internal fuel)
7500kg (max payload)
Total: 24000kg (MTOW)

Here there is no compromise on internal fuel to achieve the 7.5 ton payload (unlike the Gripen) so the comparison is rather clever but quite flawed. IOWs, the Gripen NG, although very impressive, does not fall anywhere close to the twin engined a/c capacities, and there is little to doubt that the Tiffy could carry more if further optimized.

CM
Austin
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Re: MRCA Discussion - October 2, 2010

Post by Austin »

I think we are sweating too much on external payload from 9T to Oh.. Its onleee 5T so it must be bad ,IMO any aircraft that can carry 6T of external load with full internal fuel is a good aircraft for multirole task.
When PAK-FA/FGFA would only be able to carry just 2 T of internal payload every one would say how great that aircraft is.
raj-ji
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Re: MRCA Discussion - October 2, 2010

Post by raj-ji »

indranilroy wrote:
Singha wrote:it would also be interesting to know its performance with such a maxed out payload in terms of acceleration, g-limits, aoa etc.

I am already suspicious of claims taken at face value about gripen's jiffy lube type turnaround time and sortie rate? do the swedes have a secret recipe or new design std to do that which f18/rafale/ef makers cannot do - afterall nobody likes long downtimes in war and everyone tries to maximise it...it also has a wing, engine and carries same generation of stuff as the f-16 block52+ so what is different to make it do 3 sorties a day and more than trusty F-solah. is it extra groundcrews and IDF war style lots of extra spares and engines kept ready for exercise?
Very interesting question. They advertise that the engine can be changed in 1 hour! How is the housing/wiring so different? Or is it just a claim?

They have showcased hot refueling many times though. Infact even in the MMRCA evaluation it was reported that they wanted to showcase this but our ground crew didn't want to risk it.

I had read the same thing about the Mig-21 (not hot refueling). The Israelis where very impressed with the turn around times of the Mig-21 which had defected to Israel. They wanted to test the Mig-21's strengths and weaknesses in A2A combat. They reportedly just brought in the aircraft, refueled it and took it to the air again almost immediately!

What makes certain planes far more service-able than others? People please answer if you know. Left to speculations none of us will be any wiser.
I agree that hot refueling seems like an impressive capability.

Not sure if this answers the questions: (please excuse the source but I have seen similar comments made elsewhere)

http://en.wikipedia.org/wiki/JAS_39_Gripen

"One interesting feature is the Gripen's ability to take off and land on public roads, which was part of Sweden's war defence strategy. The aircraft is designed to be able to operate even if the air force does not have air superiority.

During the Cold War, the Swedish Armed Forces were preparing to defend against a possible invasion from the Soviet Union. Even though the defensive strategy in principle called for an absolute defence of Swedish territory, military planners calculated that Swedish defence forces could eventually be overrun. For that reason, Sweden had military stores dispersed all over the country, in order to maintain the capacity of inflicting damage on the enemy even if military installations were lost.

Accordingly, among the requirements from the Swedish Air Force was that the Gripen fighter should be able to land on public roads near military stores for quick maintenance, and take off again. As a result, the Gripen fighter can be refueled and re-armed in ten minutes by a five man mobile ground crew operating out of a truck, and then resume flying sorties.

In the post-Cold War era, these dispersed operation capabilities have proved to be of great value for a different purpose. The Gripen fighter system is expeditionary in nature, and therefore well suited for peace-keeping missions worldwide, which has become the new main task of the Swedish Armed Forces."

These requirements could account for the Gripen's jiffy lube turnaround times. Still agree however that these claims should be verified.
raj-ji
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Re: MRCA Discussion - October 2, 2010

Post by raj-ji »

chackojoseph wrote:
indranilroy wrote:F-14s? For what Chacko-ji?
You know, taking out Tomcat as a mistake and its my personal opinion. It could go so long range and carry a load of armaments. BTW, its just a fantasy. It will not happen. :roll: It was an awesome aircraft.

The original point is , I want F-18 and want to support some jobs in US. F-18 is a very good platform too. We have FGFA for Russian, M2K deals for France (+ Scorpenes) etc. So,no love lost if we buy some 18's.
Also liked the looks of the Tomcat.

Off topic, but speaking about older US technology, I would like to see the A-10 in IAF colours. In my fantasy a MKIed updated version of the A-10. They are cheap, rugged and are impressive mud movers with a very impressive cannon. Could come in handy bridging the gap between attack helicopter and fighter.

With UCAVs being developed, this one will remain a fantasy.
Gaur
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Re: MRCA Discussion - October 2, 2010

Post by Gaur »

Karan M,
I did not mean to say the optional NATO link 16. Slip of the tongue (or fingers in this case :P ). I meant the Gripen's famed networking capability. But this begs a question. Is it possible to replace the Swedish Data link (CDL 39?) with our standard one and still retain Gripen's networking capability?

And yes, Spectra is apparently much more advanced than EWS 39. I never contested that. What I was pointing out was that you were incorrect in saying that Gripen has the disadvantage of having the most immature EW suite while Eurofighter's Rafale's had theirs integrated from the beginning. As I have said, it is the Eurofighter which is at a disadvantage if we are talking about maturity here.
Not so. Because, you are missing the point that even with a heavy load, thanks to the wing loading aspect, the larger fighters have better capabilities to escape from an integrated air defense, whereas the smaller fighter suffers a larger penalty, and depends more on on board defense aids.
I have not missed the wing loading aspect. You had successfully pointed out this to me in your previous post. I was suggesting that even the larger wings with larger wing loading will be flying bricks while carrying near max payload. True, they will still have better climb and turn rate than Gripen, but it will hardly be enough to outmaneuver a missile or a lightly armed air defence fighter. Again, thjs is just IMO. Obviously, no one can confirm this for any of the MMRCA contenders except, perhaps, the IAF.
As for Kargil, yes, Mirage-2000 was the most capable strike platform we had. Not to mention that it had the best turnaround time. However, that was not my point. My point was to show the tremendous number of sorties required during war time.
Again, I have never said that Gripen is the most capable MMRCA contender. However, I believe that it is not very much inferior to other fighters either. At the rist of repeating myself, I would rather prefer 200 Gripens/Mig-35s over 126 Rafale/Eurofighter. Then again, we do not know if MOD would go for 126 + 74 even if there is substantial price difference. In that case, I would love if Rafale/Eurofighter is chosen.
Gaur
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Re: MRCA Discussion - October 2, 2010

Post by Gaur »

Cain Marko wrote:
Gaur wrote:7200kg is the SAAB's official figure for Gripen NG's payload.
http://www.saabgroup.com/en/Air/Gripen- ... Gripen-IN/
Gaur, that is just clever marketing, the Gripen NG's payload remains around 6 tonnes. The 7.2 tonne figure they use would be achievable only after a compromise on internal fuel. IOWs, the Gripen NG at 7000kg (empty) + 3400kg (internal fuel max - 40% increase over C version) + 6000kg (external payload) ~ 16.5 tonnes (MTOW). There is simply no way that payload can be 7200kg unless it suddenly dropped 1 tonne empty weight!

So what they do in that brochure is simply show figures without full internal fuel load, which is misleading and allows one to compare it to larger MRCA birds such as the EF-2000. In the case of the Typhoon, the weights clearly show this:

11200kg (empty)
5000kg (max internal fuel)
7500kg (max payload)
Total: 24000kg (MTOW)

Here there is no compromise on internal fuel to achieve the 7.5 ton payload (unlike the Gripen) so the comparison is rather clever but quite flawed. IOWs, the Gripen NG, although very impressive, does not fall anywhere close to the twin engined a/c capacities, and there is little to doubt that the Tiffy could carry more if further optimized.

CM
Wow! SAAB certainly has some sly PR managers. Got this jingo for sure. :((
You are right. If you look at it, there is no way Gripen can carry 7200kg payload on full fuel.
Kartik
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Re: MRCA Discussion - October 2, 2010

Post by Kartik »

Cain Marko wrote:
Gaur wrote:7200kg is the SAAB's official figure for Gripen NG's payload.
http://www.saabgroup.com/en/Air/Gripen- ... Gripen-IN/
Gaur, that is just clever marketing, the Gripen NG's payload remains around 6 tonnes. The 7.2 tonne figure they use would be achievable only after a compromise on internal fuel. IOWs, the Gripen NG at 7000kg (empty) + 3400kg (internal fuel max - 40% increase over C version) + 6000kg (external payload) ~ 16.5 tonnes (MTOW). There is simply no way that payload can be 7200kg unless it suddenly dropped 1 tonne empty weight!

So what they do in that brochure is simply show figures without full internal fuel load, which is misleading and allows one to compare it to larger MRCA birds such as the EF-2000. In the case of the Typhoon, the weights clearly show this:

11200kg (empty)
5000kg (max internal fuel)
7500kg (max payload)
Total: 24000kg (MTOW)

Here there is no compromise on internal fuel to achieve the 7.5 ton payload (unlike the Gripen) so the comparison is rather clever but quite flawed. IOWs, the Gripen NG, although very impressive, does not fall anywhere close to the twin engined a/c capacities, and there is little to doubt that the Tiffy could carry more if further optimized.

CM
Indeed. Clever marketing and if one just verifies the data it becomes clear that there will be severe limitations on maneuverability with such huge payloads on a small fighter. After all, the plain airframe structure weight itself will be only around ~6000 kgs (rest will be fuel tanks empty weights, various avionics boxes and radar, ejection seat, pipes, internally retracting fuel probe, etc.). it can only carry so much stress without being damaged and the FCS will not allow that.

The loads on the wings and fuselage when maneuvering at near MTOW will be quite a lot..especially when the Gripen's 16500 kg MTOW mass X vertical load factor of anywhere near 6-8Gs are applied. The FCS will definitely limit the Gripen NG to around 4 to 5Gs or so when loaded to the gills this way.

It is impressive nonetheless for such a small fighter, but in reality the Typhoon or Rafale or even the MiG-35 might be able to take such heavy payloads and still offer slightly more maneuverability since the airframe itself may not be so overstressed by pulling high g's with 6 tons of payload + 3 tons of internal fuel. Given that their empty weight will consist of at least 1.3 tons due to an extra engine and associated strengthening, they still have more bulk and strength in their airframes. For instance, the Rafale has an empty weight of 10.3 tons and if 2.3 tons is due to the M-88-2 engines and 1200 kgs for the rest, then that leaves an empty bare airframe weight of 6800 kgs and that is around 800 kgs more than the Gripen NG's bare airframe weight. Much of that weight will be centered around the wing box, fittings near the fin base, hardpoints, etc. and these will allow a little higher amount of gs to be pulled. For instance the Rafale can pull 5.5g/20° when the FCS is configured to the air-to-ground mode.

Anyway, the IAF would be well aware of the details of what its payload is and the trade-offs with maneuverability and it is upto them to judge how important that is. AFM last month had a small blurb that showed the Gripen Demo aircraft at Jaisalmer with an IAF test pilot in the backseat. It mentioned that the IAF had conducted 40 test flights of the Gripen Demo alone, during the evaluation and these constituted a large portion of the flights that the Gripen Demo has flown to date. They evaluated performance and the AESA ES-05A Raven radar on board. Now 40 test flights is quite a lot of flights for evaluating performance and the IAF will be very well aware of the range, payload and other specifications for the Gripen NG since it has already flown with full payload.
Indranil
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

Gaur sahab you are not way off. The high-end MMRCA will be better off than the Gripen/F-16 with wingloading and TWR. However, will that difference translate to significantly better survivability against missiles. As Kartik point's out Gripen might be able to take 3Gs and the others may take 5-5.5 Gs. Is being able to pull 5.5g maneuvers save you from a modern A2A or A2G missile. I seriously doubt so.

You and I are on the same page with the MMRCA. None of us want to or can prove that Gripen or the Mig-35 is the superior fighter amongst the six. But it has often been made out on this forum that they lag far behind. Even the F-18 has been called a bomb truck. This is not the case. All of these fighters are pretty closely bunched. If anything I think the IAF has time and again shown slack towards the Gripen (even when they couldn't field their aircraft here in time). There is certainly something more than what meets the eye.

Somebody said F-18 will perform badly at high altitudes as it can be carrier-based as well. I would like to bring to that poster's notice:
1. Rafale touted as one of the best in A2A can be carrier based as well
2. Mig-29K (almost the same plane as Mig-35) is carrier based
3. SAAB wants to develop a carrier based Sea-Gripen.
Please don't write personal thoughts as facts which can be discounted so easily.

The F-18 has been trashed, but think about it if we wanted a ground attack plane with A2A capabilities, is there a better fit in our MMRCA competition (other than the expensive Rafale)?

Also, I have been saying this for a long time and Gaur sahab has echoed the same. "What is fixed?"
1. The money we want to spend?
2. Or the number of planes we want to buy, irrespective of the money spent?

Case I) Go for more planes with slightly lesser capability which can do the work.
Case II) Go for the best plane.
Karan M
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

Gaur,

I am hardly incorrect about the immature EW suite, because there are reports of the MK2 incorporating DRFM in a recent upgrade! Whereas the capability for DRFM based jammers has existed in even the Mirage 2000 Mark 5 from a long while back, and the Rafale takes the jamming a step forward with an AESA array, which allows for better simultaneous threat handling. It's not just the presence of an integrated EW suite per se, but the capability itself.Furthermore, France has a long history of successful EW wartime employment, including Iraq.

There's little need to even go into the SH's capabilities in this area, so lets look at the EF. The DASS draws upon the experience of several of Europe's most mature EW houses, and its specifications are pretty much as good as it gets, unless wants a far more extensive sensor farm, with no limit on cost. Compare and contrast to the limited SPJ installation on the Gripen. In fact, the EWS39 MK2 diagrams (try image search) show a small transmitter unit located towards the nose, and a couple of small conventional arrays. In comparison, check out the size of the ECM modules on the Wingtip of the EF, and consider which has a greater chance against high power SAM threats!
http://www.deagel.com/library1/medium/m ... 900128.jpg

I have not missed the wing loading aspect. You had successfully pointed out this to me in your previous post. I was suggesting that even the larger wings with larger wing loading will be flying bricks while carrying near max payload. True, they will still have better climb and turn rate than Gripen, but it will hardly be enough to outmaneuver a missile or a lightly armed air defence fighter. Again, thjs is just IMO. Obviously, no one can confirm this for any of the MMRCA contenders except, perhaps, the IAF.
Again, "flying bricks" is a severe overstatement for at least two of the larger aircraft, Rafale and Eurofighter. Google for an Eurofighter display on one of the video sites with a heavy load, and also for Flight's test evaluation of the Rafale, which was designed around a heavy payload! The pilot clearly mentions it retains a significant level of maneuverability! Point is, which you are missing, is that the aircraft need not be supermaneuverable, as a TVC equipped aircraft, but it needs to retain the ability to pull a few G's without sacrificing warload so as to get out of harms way when the threat indicator warms up. If you are within a NEZ of any missile, loaded or not, you are in deep trouble and will have to incur structural damage to get out of the way.

As for Kargil, yes, Mirage-2000 was the most capable strike platform we had. Not to mention that it had the best turnaround time. However, that was not my point. My point was to show the tremendous number of sorties required during war time.
But don't you see that your metric about the "tremendous number of sorties at war time" when its clear that a lot of these tremendous sorties had to to do with lower mission effectiveness per aircraft. Saying Mirage 2000 was the "most capable strike platform we had" is not much, when in the terrain we flew at, we had such a low baseline for comparison. Typically, a Mirage 2000 flew with fuel tanks, a bomb or two, a buddy for designation, and MiG-29s for escort. Look at sortie numbers as versus the situation today, where 2-3 Flankers can do all these tasks themselves, and we don't have to formate a gaggle of aircraft to do one job!

Second, where is the comparison of the difference in sortie rates between Gripen NG and the other contenders to show it has an overwhelming advantage, to offset the lower capability it brings in terms of overall performance?
Again, I have never said that Gripen is the most capable MMRCA contender. However, I believe that it is not very much inferior to other fighters either.
This is where you would be incorrect.

The F/A-18 SH brings far more combat capability to the theater, with a much more evolved and mature avionics suite, including a mature AESA radar, which has been extensively validated, and gone through the painful test/retest process.

The Typhoon, brings far more air superiority and dominance capabilities with better kinematic performance, and more powerful sensors, and can field equal/better A2G functions than the Gripen. The basic sensor being developed for the Gripen is a less powerful variant being developed by the same company that did the Typhoon's radar. We are talking of a huge difference of around 50% here when talking of the baseline mechanical radars themselves, which point to the differences in capability and design aims.

The Rafale is designed around one of the most sophisticated EW suites ever developed, with heavy sensor fusion (note the recent exercises where it even had the edge against the Typhoon), and has been validated in actual operational conditions both in its naval and AF versions, plus its been tested repeatedly for heavy payload capability, and has a variety of strike options, including variants of MBDA munitions and dedicated flight profiles.

Note what Pete Collins (RAF TP, rtd) notes about the Rafale:
The Rafale is designed for day or night covert low-level penetration, and can carry a maximum of 9.5t of external ordinance, equal to the much larger F-15E. With a basic empty weight of 10.3t, an internal fuel capacity of 4.7t and a maximum take-off weight of 24.5t, the Rafale can lift 140% of additional load, above its own empty weight, into combat.
The important point being the first sentence, which is the Rafale's USP, and:
Added to the "active" elements of the aircraft's design are Rafale's "passive" safety features, which protect the pilot in various ways. These include "carefree handling" and automatic loss of control/airframe overstress protection allowed for by the digital flight control system (DFCS); the visual and audio low speed warning system; the continuously computed "deck awareness/ground watch" system with audio warning and HUD guidance for pull-out; and the pilot-initiated "spatial disorientation" automatic recovery mode from both nose high and nose low situations. Dassault also plans to introduce an automatic "g-loc" recovery mode.
This evaluation is actually well in line with an eval by Chris Yeo (ex BAE i think) way back in 1999, who had performed a variety of swing missions in the Rafale within a single test sortie. The article should be on the net.

Also note the careful tailoring for fuel capacity addition:
The Rafale has five "wet" hardpoints for fuel tanks. All five can accept the 1,250-litre (330USgal) (fully supersonic) tank, and the inner three central hardpoints can accept the larger (up to M0.95) 2,000-litre tank. An enhancing feature is that the Rafale can also carry a buddy-buddy refuelling pod.
A large fuel fraction is essential for deep strike.

Now note the reference to a covert TFR mode.
From medium level, I descended to low level and engaged the autopilot and autothrottle into covert terrain-following mode along our pre-planned mission route at 450kt/500ft above ground level (for noise abatement), first over the sea and then over the rugged terrain south-west of Arles.

The covert mode used a GPS database, but it can also use TF Radalt or the RBE2 TFR mode as back-up. Low-level ride was excellent in the gusty Mistral conditions, as was the accuracy of the TF profile followed by the aircraft over the semi-mountainous terrain, including flying towards sharply rising cliffs. The "ground watch" system painted a constantly updated escape profile floor in the HUD. With the TF engaged, Nino explained to me some more of the "data fused" symbology in the tactical HLD and altered the flight planned route and the time over target, which was then followed by the autopilot and autothrottle in speed mode.
As you can see, this is an aircraft which has "strike" very firmly in mind from day one, while in A2A it will not be a slouch either with an AESA radar fairly equal to the ES-05 in range & modes, albeit without a rotating assembly.
The classic definitions of aircraft combat roles really do not do justice to this aircraft; the Rafale is Europe's force-multiplying "war-fighter" par excellence. It is simply the best and most complete combat aircraft that I have ever flown. Its operational deployments speak for themselves. If I had to go into combat, on any mission, against anyone, I would, without question, choose the Rafale.
EF pilots may question this in A2A, but a RAF test pilot's stamp of approval still speaks for the overall maturity of the platform.

http://www.flightglobal.com/articles/20 ... afale.html

Overall, all the three have significant operational advantages over the Gripen.
At the rist of repeating myself, I would rather prefer 200 Gripens/Mig-35s over 126 Rafale/Eurofighter. Then again, we do not know if MOD would go for 126 + 74 even if there is substantial price difference. In that case, I would love if Rafale/Eurofighter is chosen.
This is a flawed comparison because the costs of the Gripen are estimates, and second, the current budgeting is for 126 aircraft only. The additional 63 (189 total, not 74 extra) will be budgeted separately, so there is no need to mix and match the two!!

As has been seen by India repeatedly, vendors with untested/in development products, routinely underclaim their costs and try to swing the deal, counting on the IAF to pick up the costs later, as there will be no other option. It would be a shame if India went down this same path again with the MiG-35 or Gripen NG.

For reference, google for Pepe Rezende, a Brazilian journo, who is also a member of a Govt. committee, and who had access to detailed Brazilian AF eval data. You can google for his credentials and data, which have been widely reported and accepted.

In his own words, when asked
I'm a 57 years old reporter with 35 years of professional experience. I visited the Brazilian, Chinese, French an Swedish Aeronautics Industries. Yes, I have a lot of friends and now, as a Congress officer, a lot of inside info.
On claims of lower flying costs.
Pepe Rezende wrote: July 2010

The RNoAF evaluates SAAB figures and classified them as irrealistic. They found a flying cost of USD 10 thousand for the NG. The FAB found a lower cost for the NG, around USD 8 thousand, but SAAB could not supply COPAC with F414 operational costs, cause the engine is US Navy intellectual propriety. To establish a cost, FAB officers use half the value used at Boeing bid. There's a problem in this methodology. NG engine will be a little different. It will have a 80% commonality with F/A-18E/F Super Hornet engines.

The costs for the other bidders are, according Brazilian Air Force, USD 10 thousand for the Boeing bidder and USD 12,400 for the Rafale. Is important notice that French bid flying hour price is EUR 9,800 and Euro devaluated 25% at last month. Now, they are very similar
Note his statements about marketing:
"A prototype already installed in Saab's Gripen Demo aircraft has demonstrated a range of high performance air-to-air and air-to-ground modes including high resolution SAR mapping. The AESA in the Gripen Demo aircraft has been tested thoroughly by an Indian Air Force Evaluation team both in Sweden and India"http://se.zinio.com/reader.jsp?issue=416133050&o=ext page 70.

The Indian Air Force evaluation team accessed the RAVEN AESA at Sweden, not at India, according Brazilian Air Force officers. That's a lot of propaganda at SAAB papers.
On risk:
The Gripen NG is considered, even at COPAC, as a high risk deal. There are doubts about development and industrial schedule, amongst other items. We need something ready to fly, not a paper airplane.
On access to tech,. and the problems faced
US Government supports Boeing bid and is the F414 intellectual owner. So, Boeing provided the F414 operational cost. Sweden has no rights over the engine so it could not supply the operational costs, even flying it at the Gripen Demo. About the Leh tests, the intention was to check eventual engine changes needed at bidders. They were sugested to GE and Klimov.
The fact is that the plane is still a work in progress and had to rely on different airframes for tests, and all sorts of PR is there suggesting its ready and all India needs to do, is sign on the dotted line. This when costs are unknown, and India will have to shoulder all the costs of integrating new weapons onto the type, face all sorts of teething troubles

Its amazing how many have bought into this sort of stuff, when India should put its own priorities first and foremost.

The prominent ad campaign being run by the media is a case in point. Open a certain aviation magazine, and see the articles on the Gripen, they are so one sided its beyond amusing. Now that effort is being extended to other magazines, talking of an "independent choice", when the suppliers are located in the same countries where the other fighters are from. Talk about PR claim
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Re: MRCA Discussion - October 2, 2010

Post by Sandeep_ghosh »

why does it take so long to decide on an aircraft when all the demonstrations are done with the IAF????
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

^^^ Sandeep bhai, why such a question here.

It has been a very good discussion till now why dilute it?

Karan very valid points.

Correct me if I am wrong here. DRFM has been part of the EWS-39. They are working on enhancements for the next generation of DRFM.

I am sure Rafale's EW suite is quite advanced.

I am sure that you would be aware of this but don't take the word of the pilot at a demo flight in an airshow. He becomes a spokesperson for the company. I mean if you would believe the pilots of the Mig-35, it would be the best plane in the world!

As far as I have read TVC won't help you evade missiles. But going by this MTOW/empty weight ratio. Su-30MKIs would do better than the EF/Rafale/Mig-35/F-18 with similar loads. Why should I buy a bird which is quoted well over its price? Su-30s have an excellent maintenance track record, logistic support yada yada yada .... you know the rest of the lines about op.exp and commonality.
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

^^^ I was right about the DRFM on Gripen. Here's an official PDF. This is dated April 2008.
Gripen’s future EW system will incorporate enhanced self protection jammer with digital threat receivers, further improvements of the Digital Radio Frequency Memory (DRFM) for highly sophisticated jamming techniques.
.
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

indranilroy wrote:Correct me if I am wrong here. DRFM has been part of the EWS-39. They are working on enhancements for the next generation of DRFM.
EWS39 has a noise jammer (ref: Janes) and the MK2 improvement publicized the addition of a DRFM techniques generator for a two channel transmitter in 2007.

http://i42.tinypic.com/zsttp4.jpg
I am sure that you would be aware of this but don't take the word of the pilot at a demo flight in an airshow. He becomes a spokesperson for the company. I mean if you would believe the pilots of the Mig-35, it would be the best plane in the world!
Boss, please have some perspective & do read the link before you make such comments which are totally out of context.

The pilots mentioned above mention capabilities & technology vis a vis combat relevant metrics They are not "demo pilots at an airshow" out to impress the crowd.

Pete Collins is an ex RAF Test Pilot, hired by the British Flight group who has actively served as a TP, and then evaluated the Rafale. Incidentally, his words reflect pretty well on the Rafale as do those of Chris Yeo, another Brit who evaluated the Rafale earlier in 1999.

These are not rtd pilots flying desks who are evaluating the aircraft on academic merits/demerits - but test pilots with an ETPS background (look up its relation to the IAF), arguably trained for the specific purpose of they are objectively rating the aircraft based on its actual hands on performance, as seen by them!

Pete Collins
http://goliath.ecnext.com/coms2/gi_0199 ... an-ex.html

Chris Yeo
http://thetartanterror.blogspot.com/200 ... -1946.html

Nor did they fly these aircraft at an airshow, but were given access to the Rafale by the program.

In case you still don't get my point, this is a very credible step, as both pilots are not French, but British, have extensive test flying experience, and unlike freebie rides to journos, can pick up if anything is wrong in the aircraft, leading to a possible PR disaster.

Second, look beyond the people and focus on the points of interest, regarding the aircraft performance in the strike role! What we have here is a pretty unique description as one of the pilots - Chris Yeo, flew the aircraft in 1999, whereas another flew it in 2010, and we can now corroborate the maturity of the platform as a whole.
As far as I have read TVC won't help you evade missiles.
TVC does help you evade missiles by drastically reducing the radius of turn. If you have a missile heading your way, and you are not yet in its NEZ, then at the usual operational subsonic speeds, TVC can help you effect rapid changes in direction & escape.
But going by this MTOW/empty weight ratio. Su-30MKIs would do better than the EF/Rafale/Mig-35/F-18 with similar loads. Why should I buy a bird which is quoted well over its price? Su-30s have an excellent maintenance track record, logistic support yada yada yada .... you know the rest of the lines about op.exp and commonality.
Su-30's have higher MMH/FH than the smaller EF/Rafale & plus, relying only on the Su-30's runs the risk of overreliance on a single vendor - Sukhoi, which is also the vendor of choice for the FGFA. In the past, India suffered heavily, when Soviet Union had a breakup, spares became unavailable, and MiG fleet did not get spares.

Even so, cancelling the MMRCA and relying only on Su-30 MKI + LCA MK2 has also been proposed by several serious commentators, but the MMRCA program has taken on a life of its own and will proceed, so it makes absolute sense to go for combat capability that is as near the MKI's as possible, as we are only getting 270 odd Flankers (China will have more) and aircraft need to be split between both theaters.
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

indranilroy wrote:^^^ I was right about the DRFM on Gripen. Here's an official PDF. This is dated April 2008.
Gripen’s future EW system will incorporate enhanced self protection jammer with digital threat receivers, further improvements of the Digital Radio Frequency Memory (DRFM) for highly sophisticated jamming techniques.
.
The addition of DRFM itself to the Gripen began in 2007-08 so what you have here is PR talk of possible improvements, and till the actual Gripen Demo transitions to a Gripen NG, it's not certain. The larger point is as to why the Gripen is "cheaper", it is cheaper because the technology it contains is limited vis a vis its larger Eurocanard cousins!

Take the Rafale in comparison:

Thales Group website:
Spectra also contributes to passive tactical situation awareness, all-weather long-range
detection, identification and location of threats, within a short response time. The system’s cutting-edge defensive measures are based on combinations of omni-directional AESA jamming, multi-band decoying and evasive manoeuvres, as well as on state-of-the-art technologies such as Digital Radio Frequency Memory (DRFM) signal processing.

Spectra’s angular location on the aircraft allows it to locate ground threats, to target them for destruction with precision-guided munitions, or to avoid them. Its threat library – which can be defined, integrated and updated on short notice by users in the home country – is instrumental to this performance. As operations unfold, protection onboard the Rafale can be continuously and fluidly enhanced using the system.
Now look at ATLC in the UAE held recently to see whether the above is meaningless or fluff

Per a French journo:
The Rafale, we all understood, has greatly improved its reputation, especially among UAE pilots.

It thus several time repeatedly demonstrated its superiority in all the spectacular missional in detecting sites of ground-air missiles that had not been updated by U.S. F-16CJ.

Furthermore, the front sector optronics (OSF) has also enabled the detection and identification up to 40 kilometers an asset which prevents the aircraft exposed for visual identification at 3-4 km, which is Necessary for most other types of aircraft.

Similarly, within a minute, a Rafale has fired six AASM on as many targets, at ranges of several tens of kilometers, while also firing three missiles air-air Mica. In the back seat, that day, a UAE pilot...
In practical terms, a Rafale, using Spectra, was able to locate multiple SAM batteries in real time & also demonstrated the capability to take out A-G targets using the AASM missile (15km to 50 km range) while also maintaining an A2A function.

These are practical capabilities demonstrated which mean the IAF does not have to wait another decade before all the PR material becomes true.

Similarly, when talking of future capabilities, another point is a well funded roadmap, not dependent on the customer is a plus. Check out the F/A-18 roadmap here, which began quite a while back, and compare the difference in program maturity versus an "in development NG" and a platform already acquiring capabilities.

http://www.scribd.com/doc/24727325/F-A- ... 8G-PROGRAM
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

Karan M wrote: TVC does help you evade missiles by drastically reducing the radius of turn. If you have a missile heading your way, and you are not yet in its NEZ, then at the usual operational subsonic speeds, TVC can help you effect rapid changes in direction & escape.
That is not true. You can read many evaluations of the same on the net. But to just give simple physics. suppose the plane was flying at 720 kms/hr (200 m/s) it's centripetal force required for a radius of turn of is (Mv^2)/r. And therefore the required centripetal force required is M(40000)/r. Considering the radius of turn as 200 mtrs. This is approximately 200M

Given a TWR of a plane at 1. and taking that it's nozzle can flex by 25 degrees. The component of force towards the centre of the turn is M X g X sin 25 = m(10) X 0.422 = 4.22m.

So you can see that the radius of turn would only be decreased by 2%. The weight gain because of the TVC negates this advantage.

What TVC would actually let you do is to keep turning your nose, but your plane would continue to move along the same path in its own momentum. This has been proven time and again in many researches.
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

Also your pretext that going for more Su-30s would make us more dependent of Russia is misplaced given the statements of officials that a complete indigenous-ation of the su-30s has been achieved that they are (can be if reqd) produced 100% in India.

Also please notice that what I have been saying does not tantamount to scrap the MMRCA. I don't understand why my medium fighter would cost me the same (if not more) to acquire and operate as my heavy fighters? Beats the whole purpose, doesn't it if my heavy fighter does not have an agility issue borne out of weight itself!
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

indranilroy wrote: That is not true. You can read many evaluations of the same on the net.
Boss, either I can try and dig up the math, or I can make my life simpler by seeing how actual pilots who have been using the MKI. Now my memory is aging, but I am fairly certain that an operational MKI pilot made specific and repeated references to this in a public source, pointing out how they use they use TVC during one of the NatGeo shows or something. He specifically mentioned & explained the ROT bit, noting that in a close combat situation, the MKI would cause a pursuing fighter to overshoot as it would pull a tighter turn. Net, the capability specifically exists and has been used by the IAF. Some of your internet search whizzes can perhaps even find the show I am referring to.
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

However, you have a very valid point. We shouldn't compare fielded potential against advertised potential as unlike the aircraft the avionics grows much faster.

It is the same for the missile technology. In this cat and mouse game which will continue till eternity, if we have a plane which is ahead of the Chinese tracking and seeking ability, that should be good enough.

Also your threat description of Rafale taking out A2G missile locations as sitting ducks is not complete as protection for such locations are layered. There radars would pick up the plane before the Rafale picks up missile sites.

Hence I have never heard of planes having been sent into enemy territory which is guarded based on the pretext that the plane will be able to take care of itself based on its technologies alone. I don't believe defenders are so lethargic.

In that tactical game, how much does the Rafale's ability to pick up missile sites helpful? I want to learn about this here.

Also can I have a Su-30/ FGFA identify the site for me and relay coordinates so that I can take more fighters. If I can fire 1.5 - 2 times the number of missiles at my target, what are my odds of destroying the SAM batteries?
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

indranilroy wrote:Also your pretext that going for more Su-30s would make us more dependent of Russia is misplaced given the statements of officials that a complete indigenous-ation of the su-30s has been achieved that they are (can be if reqd) produced 100% in India.
We won't get 100% stuff built in India as its simply too expensive. While indigenization will continue over the life of the aircraft, Russia will continue to be a partner and cooperation with them is absolutely required as they still have access to key structure and design data.
Also please notice that what I have been saying does not tantamount to scrap the MMRCA. I don't understand why my medium fighter would cost me the same (if not more) to acquire and operate as my heavy fighters? Beats the whole purpose, doesn't it if my heavy fighter does not have an agility issue borne out of weight itself!
Can you reduce the bold text, though? Its a bit hard to read. The key reason the Su-30 heavy fighter does not cost much more in upfront costs than the newer medium fighters is because its been built in Russia (lower overhead costs, given existing facilities & reduced variable costs in terms of manpower allocated per aircraft plant) and most significantly, it leverages existing technology which was already partly developed by Russia as part of its advanced fighter programs. The MKI was in some ways, nothing but technology of the Su-35 built into a Su-30 airframe, which by memory was derived from a two seater Su-27 variant.

In contrast, the Rafale, EF are new designs, designed from the ground up, and given the cost differential between western europe and russia, plus commercial requirements, will cost more than the Russian aircraft!

Also, take into account inflation and raw material cost variations (Su-30 costs have been rising fairly upwards), and the fact that the medium fighters have advanced technology allowing them to compare well with the larger aircraft
- in A2A EF can compare with the larger Su-30
- in A2G, Rafale has some capabilities Su-30 does not have, eg discreet Terrain modes

So this cost comparison is not relevant as anything we get now from the west, will be pretty expensive for advanced capabilities. In fact this is the big reason why the MCA is so important. Going forward costs will continue to increase (see the JSF program) and India will have issues in refreshing its next fighter series which have to be at the same level of capability.
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

Karan M wrote:
indranilroy wrote: That is not true. You can read many evaluations of the same on the net.
Boss, either I can try and dig up the math, or I can make my life simpler by seeing how actual pilots who have been using the MKI. Now my memory is aging, but I am fairly certain that an operational MKI pilot made specific and repeated references to this in a public source, pointing out how they use they use TVC during one of the NatGeo shows or something. He specifically mentioned & explained the ROT bit, noting that in a close combat situation, the MKI would cause a pursuing fighter to overshoot as it would pull a tighter turn. Net, the capability specifically exists and has been used by the IAF. Some of your internet search whizzes can perhaps even find the show I am referring to.
The pilot might have simplified the matter for the audience. He can't make a tighter turn, he can maneuver at much lower speeds with complete control over his aircraft than a non TVC plane. This will be beneficial against a fighter in close pursuit like in a dog fight as the pilot mentions. It reportedly enhances survivability by 20 to 30 percent.

But for a missile which can take 30-40G at sea level (sometimes more) and has a lock from a distance further away, it will be foolish if you would try to outmaneuver that missile while it is more than a couple of miles away. You would only be losing kinetic energy and a lot of movement for you translates to much lesser movement for the missile (basic geometry).
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

indranilroy wrote:It is the same for the missile technology. In this cat and mouse game which will continue till eternity, if we have a plane which is ahead of the Chinese tracking and seeking ability, that should be good enough.
Not good enough, because nobody has an idea of the advances the Chinese are making and it would be very risky to rely on presumptions we are ahead of them. And if you begin with a larger baseline, the cost reduces - are you going to do a MLU every 3-5 years the Chinese introduce an iterative upgrade? Simply put, the more advanced capabilities on the Rafale & EF, and their larger growth potential matter. This year the US put out a tender asking for NGen pods as they are not even sure of the ALQ-99 series anymore.
http://www.flightglobal.com/blogs/the-d ... tch-f.html
Not everyone is the US to keep doing such technology updates.
Also your threat description of Rafale taking out A2G missile locations as sitting ducks is not complete as protection for such locations are layered. There radars would pick up the plane before the Rafale picks up missile sites.
Passive Radar warners always pick up radar emissions first! Look at it, radar receivers have to pick up a signal reflected, whereas the warner has to just receive the signal to begin with (provided its not an advanced radar with some low intercept modes). In this case, what ATLC demonstrated is significant because

- The Spectra was able to detect radar sites on the fly, ID them (location wise)
- Rafale could target them with A2G munitions without any external involvement

This is a big plus for strike packages.
Hence I have never heard of planes having been sent into enemy territory which is guarded based on the pretext that the plane will be able to take care of itself based on its technologies alone. I don't believe defenders are so lethargic.
??

Its not a question of lethargy or not.

You do whatever you can to do proper mission planning and send your guys out with the best tools at their disposal, but if their tools are limited, they are limited
In that tactical game, how much does the Rafale's ability to pick up missile sites helpful? I want to learn about this here.
Explained above
Also can I have a Su-30/ FGFA identify the site for me and relay coordinates so that I can take more fighters. If I can fire 1.5 - 2 times the number of missiles at my target, what are my odds of destroying the SAM batteries?
The aim is, and has been WW to reduce "sensor to shooter" time. The more respondents you put in this lopp, the greater the delay, and the risk to all the platforms increases, and the threat escapes. In short, while you can do the "relay coordinates" bit, one day in the future, what you have now are platforms like the Rafale which can locate the site in realtime, and target it, without waiting for more fighters.

Another reason why the Rafale's work was impressive is because it performed destruction of enemy air defences without relying on expensive ARMs but relatively cheaper AASM missiles. Now, in the Balkans war, the US fired hundreds of Anti radiation missiles just to take out relatively few missile sites. As you can see, they had a rough bearing of where the threat was, and fired the missile there, the site detected the missile and shut down, causing the missile to lose coordinates and explode without effect. Now in this case, the Rafale ID'ed the site and shot a missile which does'nt really care if you go off the air or try to jam it. Its a simpler but more effective solutions.

Another alternative is to use advanced weapons but this is more cost effective.
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

Karan M wrote:
We won't get 100% stuff built in India as its simply too expensive. While indigenization will continue over the life of the aircraft, Russia will continue to be a partner and cooperation with them is absolutely required as they still have access to key structure and design data.
this is the exact reason why added "can be built if required", though I read the official throw the 100% figure which I think is a simplification for the masses.
The key reason the Su-30 heavy fighter does not cost much more in upfront costs than the newer medium fighters is because its been built in Russia (lower overhead costs, given existing facilities & reduced variable costs in terms of manpower allocated per aircraft plant) and most significantly, it leverages existing technology which was already partly developed by Russia as part of its advanced fighter programs. The MKI was in some ways, nothing but technology of the Su-35 built into a Su-30 airframe, which by memory was derived from a two seater Su-27 variant.

In contrast, the Rafale, EF are new designs, designed from the ground up, and given the cost differential between western europe and russia, plus commercial requirements, will cost more than the Russian aircraft!
And with this we come full circle to when we started this discussion. This is part of my initial point where I said the Russian costs are down was because they have existing knowhow and cheap labour while the EU has had to catch up and has to recover the cost with its planes. You had countered me by saying that the price is high because the equipment is way better. I had reasoned that Mig-35 is half the price doesn't mean that it is half as effective but only behind by a certain percentage.

I think the fact is that both are true. All I (and to some extent Gaur sir) have been questioning all throughout is that slight percentage edge so required in combat? Or is the numerical supremacy with aircrafts which "can do the job" better? I look back at aerial wars and the second one seems to have played a more critical role much more often. I see strong tactics backed by high availability winning wars rather than an uber high-tech gadget. Hence my assertion.
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

indranilroy wrote:The pilot might have simplified the matter for the audience. He can't make a tighter turn, he can maneuver at much lower speeds with complete control over his aircraft than a non TVC plane. This will be beneficial against a fighter in close pursuit like in a dog fight as the pilot mentions. It reportedly enhances survivability by 20 to 30 percent.
I doubt the simplification bit as he was fairly categorical, and I did meet one of his peers who corroborated what he said, will check up when I get time. That 20-30% bit is not worth the money, TVC when properly implemented is a big plus. At Mountain Home AFB, US, the MKIs had a 21:1 advantage versus their non TVC peers:
http://www.flightglobal.com/blogs/the-d ... n-you.html
But for a missile which can take 30-40G at sea level (sometimes more) and has a lock from a distance further away, it will be foolish if you would try to outmaneuver that missile while it is more than a couple of miles away. You would only be losing kinetic energy and a lot of movement for you translates to much lesser movement for the missile (basic geometry).
Sorry, but look at missile tech. in context. Most existing missiles have a boost-glide profile (the new indo israel one has dual pulse motors, and meteor has ramjet). They also have a no escape zone, but they do track your aircraft and make movements to match using PNav. Your aim is to put as much distance between you and the missile as possible while also complicating its seeker acquisition or jam its offboard sensors (guidance links or radar). So if you detect the missile at range and take sufficient actions - you stay out of its NEZ and escape. On the other hand, if its closer, you hopefully burnt off enough of its energy that its now in the glide phase & even with trajectory corrections, can't make more than a pass against you. If you are in the NEZ, then you might as well hope that the EW/countermeasures you have work, because theres no way, that you can outdodge the missile bar trying some risky stunts like flying low at speed (seeker clutter) etc. Plus being faster, the missiles need higher G rating to begin with.
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

Karan sir, we shouldnt draw the analogy of soldiers to aircrafts when you say "give them the best tools to fight the war, if the tools are limited, they are limited."

A soldier will never buy that logic. Instead of 25 bullets which are 98% accurate, he would anyday exchange 50 bullets which are 93% accurate and bayonet.

But sophisticated tools in airfare makes more sense than a soldier.

However, think of a war time situation, it won't be as smooth as flying into enemy territory using swanky gadgets to take out SAM batteries and then return home. It will hugely chaotic. And hence more often then not war accounts specify the requirement of more mud movers than swanky gadgets.

Recent example of any wars, none of the AFs seemed to have the highest kills by the most sophisticated craft. They have more often than not relied on their hundreds of mud movers.
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

I don't know Karan Sahab about what you saw. I have heard this logic of TVC aid turning radius only in hearsay. whatever research material I have read tells me what I typed. And it seems like very simple physics.
Karan M wrote: I doubt the simplification bit as he was fairly categorical, and I did meet one of his peers who corroborated what he said, will check up when I get time. That 20-30% bit is not worth the money, TVC when properly implemented is a big plus. At Mountain Home AFB, US, the MKIs had a 21:1 advantage versus their non TVC peers:
http://www.flightglobal.com/blogs/the-d ... n-you.html
You have equated survivability with kill ratio, increasing survivability of more than 20 to 30% will always result in a much better kill ratio.
Sorry, but look at missile tech. in context. Most existing missiles have a boost-glide profile (the new indo israel one has dual pulse motors, and meteor has ramjet). They also have a no escape zone, but they do track your aircraft and make movements to match using PNav. Your aim is to put as much distance between you and the missile as possible while also complicating its seeker acquisition or jam its offboard sensors (guidance links or radar). So if you detect the missile at range and take sufficient actions - you stay out of its NEZ and escape. On the other hand, if its closer, you hopefully burnt off enough of its energy that its now in the glide phase & even with trajectory corrections, can't make more than a pass against you. If you are in the NEZ, then you might as well hope that the EW/countermeasures you have work, because theres no way, that you can outdodge the missile bar trying some risky stunts like flying low at speed (seeker clutter) etc. Plus being faster, the missiles need higher G rating to begin with.
You and I are speaking of the same objective but we seem to differ or the way to achieve this.

If you are 30 kms away from the seeker, what would make you move out of frame a fast dive, a fast climb, a sharp turn right or a sharp turn left? That is what I am trying to say. Don't lose your kinetic energy. move as fast as possible.

On the other hand you seem to champion maneuverability here If you keep maneuvering very aggressively to break lock, you wouldn't be moving a lot in the seeker's frame. Also you would have lost your KE and would be moving slowly, so the seeker finds it easier to attain lock.

Please educate me where I am wrong.
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

indranilroy wrote:this is the exact reason why added "can be built if required", though I read the official throw the 100% figure which I think is a simplification for the masses.
Not simplification per se, but context matters..ie by when this will be achieved, and of course do we even need 100% given the cost involved.
And with this we come full circle to when we started this discussion. This is part of my initial point where I said the Russian costs are down was because they have existing knowhow and cheap labour while the EU has had to catch up and has to recover the cost with its planes. You had countered me by saying that the price is high because the equipment is way better. I had reasoned that Mig-35 is half the price doesn't mean that it is half as effective but only behind by a certain percentage.

I think the fact is that both are true. All I (and to some extent Gaur sir) have been questioning all throughout is that slight percentage edge so required in combat? Or is the numerical supremacy with aircrafts which "can do the job" better? I look back at aerial wars and the second one seems to have played a more critical role much more often. I see strong tactics backed by high availability winning wars rather than an uber high-tech gadget. Hence my assertion.
Boss, its comparing apples to oranges, the MiG-35 to begin with, is not the Flanker. The Flanker was a huge hit from, day one requiring minimum upgrades to get more bang for the buck, in contrast, the MiG required more extensive engineering to get its potential to modern requirements. In short, even a Su-27 SK can take on a MiG-29 Upgrade, but a MiG-29 Upgrade cannot necessarily take on a Su-35, see the difference? This is the first thing. So its not just percentages per se, but that the MiG required a lot of rework beyond airframe mods (which I think Cain has addressed) to get to the systems maturity a Rafale or EF or SH have aimed for. When I gave that TP link, read the comments about actual operational capabilities in terms of flying low, selecting modes, profiles etc. This is where a huge amount of effort went, and the money, not just "the outside stuff". Now, MiG is also facing financial difficulties, has been absorbed into UAC, its radar manufacturer was bankrupt, and would you still think is this choice..

Gripen similarly, is operated by a handful of countries, which bar Sweden, lack the wherewithal to actively fund long term upgrades, and the home provider is itself struggling to get more than a handful of planes. The EF/Rafale, while also struggling with budget cuts, have actively funded large scale technology insertions & begin with a larger baseline in capability.

In short, your opponent does X, and for the smaller fighter, you have to do a lot more to compensate, whereas for these more advanced platforms, you hold off on a proper MLU till a decade and a half away.

Now, coming to numbers and edge, what you are not getting, that we are in anyways outnumbered by a force which is fielding more and more advanced systems. That is China. And our conventional foe, Pakistan, is also acquiring light fighters and advanced medium generation fighers (50-80 F-16 Block 52s). So you cannot rely on "simpler" but larger numbers (and by what number!) fighters to swarm an opponent!

If you want numbers, keep developing the LCA. A LCA MK3 will be firmly Gripen NG class or F-16 Block 50+ class, but don't reduce the capabilities for the MMRCA which need to give us enough bang to take on advanced AD networks and larger numbers of PLAAF Flankers.
Last edited by Karan M on 10 Nov 2010 04:36, edited 2 times in total.
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

indranilroy wrote:I don't know Karan Sahab about what you saw. I have heard this logic of TVC aid turning radius only in hearsay. whatever research material I have read tells me what I typed. And it seems like very simple physics.
I'll try and get the link if I can find it.
You have equated survivability with kill ratio, increasing survivability of more than 20 to 30% will always result in a much better kill ratio.
Yeah, but well that's what matters right? Plus what do you mean by survivability, its defined differently by different folks. In real detailed terms, we can drill down to TVC improves "x capability at y AOA", and boosts "XTR by AB deg/sec" but in raw terms, for an AF to really get how good/bad TVC is, it needs to see it in practical results, which is what gives the IAF and USAF the edge, because they know what it is and how good or bad it is, operationally. The rest who don't have it, downplay it.

You and I are speaking of the same objective but we seem to differ or the way to achieve this.

If you are 30 kms away from the seeker, what would make you move out of frame a fast dive, a fast climb, a sharp turn right or a sharp turn left? That is what I am trying to say. Don't lose your kinetic energy. move as fast as possible.

On the other hand you seem to champion maneuverability here If you keep maneuvering very aggressively to break lock, you wouldn't be moving a lot in the seeker's frame. Also you would have lost your KE and would be moving slowly, so the seeker finds it easier to attain lock.

Please educate me where I am wrong.
Moving out of the seekers frame wont work -by the time that happens, you are probably in its NEZ, you need to evade the launch aircraft's lock. I am saying the option exists to try and escape at range using TVC. Its an extra tool in the toolbox, depending on the situation you'd use it or not.
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

indranilroy wrote:A soldier will never buy that logic. Instead of 25 bullets which are 98% accurate, he would anyday exchange 50 bullets which are 93% accurate and bayonet.
But that's an assumption you are making by saying its 93% vs 98%, the results show there is almost a 20-50% differential in several performance parameters between the heavy and light fighters! Even with the midrange number, thats a lot.
But sophisticated tools in airfare makes more sense than a soldier.

However, think of a war time situation, it won't be as smooth as flying into enemy territory using swanky gadgets to take out SAM batteries and then return home. It will hugely chaotic. And hence more often then not war accounts specify the requirement of more mud movers than swanky gadgets.

Recent example of any wars, none of the AFs seemed to have the highest kills by the most sophisticated craft. They have more often than not relied on their hundreds of mud movers.
Taking out SAM batteries is "mud moving". Air to ground is mud moving and these are not "swanky gadgets" but essential ones. The more the chaos, the more you need proper, well designed technology to simplify the pilots task and make his life simpler.

Take a look at the JSF and the effort they are putting to integrate all the "gadgets" into the plane itself, and give the pilot just one unified picture so that he can concentrate on doing his job, and not get distracted by umpteen things.

And to succeed at "mud moving" you need both fighters to keep fighters at bay and more sophisticated SEAD aircraft, thanks to the creation and proliferation of SAM systems.
http://en.wikipedia.org/wiki/Wild_Weasel

The US went to terrific lengths to create dedicated units for this mission and its to our advantage if we get similar capabilities in the baseline aircraft itself without having to spend heavily on creating special mission aircraft and a handful of units which can only do such complex tasks.

But to explain things further - Rafale, EF and SH are not for one mission. They are described as swing role. They are designed to handle multiple sub-missions within one sortie without having to return to base and retool for a job. In a chaotic war, that is a big plus. You have a strike package going into PRC and no longer need to put different aircraft for the task, but each fighter can have a mix of A2A and A2G munitions capable of handling different kind of threats. Thats a big plus.
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Re: MRCA Discussion - October 2, 2010

Post by Karan M »

MKI and TVC - found part of it

http://www.youtube.com/watch?v=gAlpgOG6z6I
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

Karan Sahab you are putting words in my mouth ... I said mud movers who could do the job ... that doesnt mean removing SAM batteries is mud moving.

Btw, one argument for the MMRCA over the Su-30 is that they are single pilot systems. But then IAF seems to like a dedicated WSO for the heavier aircrafts.
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Re: MRCA Discussion - October 2, 2010

Post by Indranil »

Karan M wrote:MKI and TVC - found part of it

http://www.youtube.com/watch?v=gAlpgOG6z6I
Sirjee, you have misunderstood the pilot. He has said what I am saying!

The pilot starts to describe a roll. And then he explains why the Su-30 doesn't need to complete a roll to change directions as it can do a post stall maneuver. He never says that the role of the Su-30 is faster.

What is speaking off is again a nose pointing ability. He has made things very simple for the viewer. But let me explain what he is saying.

Supposed you were to make a 180 degree turn. Do you think the Su-30 would be able to just turn like that because he has TV. He would be able to go to extreme AoA making his whole body act as brake which will slow him down very fast. He can follow this up with a sharp hammerhead, or Immelmann or Split-S to turn 180 degrees. Having TVC gives him control all throughout this "post stall" maneuvers, which essentially mean AoA or air speeds where other plains would have lost authority. However, there is a flip side to this, Coming out of the turn the Su-30 has almost no velocity. So this is not as simple as it sounds.

However, make an isometric transition of this 3D maneuver on a Plane of View (POV) of the seeker. You wouldn't be moving much. The transition will be huge if you manage to keep your velocity high and at 90 degrees to the LOS between the seeker and the plane. That won't be achieved by post stall maneuvers! Hence lets not confuse both of them.

Sirjee the mathematics I presented was simple Newtonian physics. We can't undo them. also reading about TVC is indeed very interesting. There is a lot of literature about it. Lots of tos and fros trying to prove or disprove the other.
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Re: MRCA Discussion - October 2, 2010

Post by sohels »

indranilroy wrote:Supposed you were to make a 180 degree turn. Do you think the Su-30 would be able to just turn like that because he has TV. He would be able to go to extreme AoA making his whole body act as brake which will slow him down very fast. He can follow this up with a sharp hammerhead, or Immelmann or Split-S to turn 180 degrees. Having TVC gives him control all throughout this "post stall" maneuvers, which essentially mean AoA or air speeds where other plains would have lost authority. However, there is a flip side to this, Coming out of the turn the Su-30 has almost no velocity. So this is not as simple as it sounds.
Lets say there are two aircrafts, A and B, such that A has TVC (Flanker?) and is more maneuverable than B (Typhoon?), and B (no TVC) is more agile than A.

Which of the two aircraft, armed with radars and missiles of similar range and effectiveness, is more likely to win a BVR contest? What about a WVR engagement?
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Re: MRCA Discussion - October 2, 2010

Post by Sandeep_ghosh »

A big argument against russian hardware has been quality control and spares issues in the past. This was specifically with MIG 29's operated by the IAF.

Since Mikoyan bureau has been integrated with Ilyushin, Irkut, Sukhoi, Tupolev, and Yakovlev, i suppose that is an issue which shouldn't play into selection of mmrca. We haven't faced any such difficulty with SU30 MKI. Same experience would be expected in case MIG 35 gets selected.

About BVR performance:

Russians have offered the ramjet version of r77 and MVV-SD and - RVV - MD, upgraded R77 outranges AIM 120D (AIM 120 C is being offered with teen series) and the MBDA mica and meteor. Also R74 (newest upgrade to r73) is being offered for WVR. Both these missile are fully compatible with LCA, SU 30MKI, Mig 21 and Mig 29.

Unfortunately I am not a aeronautical engineer and an not aware how Typhoon and Rafael's maneuverability is better than Mig 35. But from general characteristics, at high speed maneuverability, i see that the fulcrum is faster at 2.25 Mach compared to 2.0 Mach of Rafael typhoon and gripen, F/A 18 with 1.8 Mach and F16 with 2.05 Mach.
Mig 29 airframe was designed to be an air-superiority fighter in BVR as well as WVR fights with F16 and f15's in mind. There should be no doubts about the agility of Mig 29's. When you introduce TVC in an already agile frame, it should improve the characteristics of the fighter by a substantial factor.

About Over dependence on Russia for military hardware...

About the french: Snecma owners of turbomecca are arm twisting HAL for using Shakti engines in LUH at extortionist prices. Delays in Scorpene subs

UK: Severe delays and stubborn negotiations for price and license BAE hawks.

SAAB: The United States blocked an export of Viggens to India in 1978 by not issuing an export license for the RM8/JT8D engine, forcing India to choose the SEPECAT Jaguar instead

I dont need to say anything about US... there are not willing to give freakin radio's on C130's

Finally about the design :
Eurofighter and rafale designed as Multirole fighters

Gripen as light weight multirole fighter

F16, Designed as a lightweight, daytime fighter, it evolved into a successful multirole aircraft.

F/A 18, Derived from YF17 LFI program, later adapted to multirole aircraft.

MIG 35, Originally Designed as an Air Supremacy fighter provided with multirole capabilities.

Maybe there is a big advantage in MIG 35 is being an Air supremacy fighters which is adaptable to function as a multi role fighter.
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Re: MRCA Discussion - October 2, 2010

Post by Jamie Boscardin »

If i am visualizing correctly, by 2025, IAF and IN combined would have:
A/C's - Number - FighterPilots
- PAKFA - 300 A/c - [flyer +WSO = 600 pilots]
- SUMKI - 300 A/C - [-do-]
- LCA - 200 A/C - [probably all converted into MK3 standards, 200 pilots]
- MMRCA - 126 A/C - [Typhoon(hopefully), single sit, so 126 pilots]
- MCA - ?? - [ NA]
IN:
- Mig29KUB - 60(?) - [120 pilots]
- F-35? - xx - [NA].

How many fighter pilots are needed, min/max (with backup) per aircraft and then as a whole?
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Re: MRCA Discussion - October 2, 2010

Post by shukla »

Typhoon deal boost BAE jobs
AN EAST Lancashire-made fighter jet is set to clinch a bumper £3billion deal with the Indian military, providing a major jobs boost.

Air force chiefs in the Asian country are believed to be on the verge of buying 126 Eurofighter Typhoons, the aircraft built by engineers at BAE Systems’ plants in Samlesbury and Warton.

Although any deal would lead to a Typhoon base being built in India, it would also lead to an increase in workload in Lancashire.
Some in the UK seem to think this is a done deal.. hmmmm
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Re: MRCA Discussion - October 2, 2010

Post by SaiK »

May be Ajai Shukla ji told them so.
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Re: MRCA Discussion - October 2, 2010

Post by shukla »

SaiK wrote:May be Ajai Shukla ji told them so.
:rotfl:
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