Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Naval Tejas Mk1 and Mk2
Last Page of Previous Thread ---> viewtopic.php?f=3&t=7181&start=960
Aeronautical Development Agency (ADA) webpage on the Naval Tejas Mk1/Mk2 ---> https://www.ada.gov.in/images/Navy.htm
Acronyms:
• NP ---> Naval Prototype
• KHN-T ---> Two Seat Trainer
• KHN ---> Single Seat Fighter
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A Detailed Look At The Design Evolution Of India’s Naval-LCA Mk1 Fighter
http://delhidefencereview.com/2019/10/1 ... 1-fighter/
By Indranil Roy and Nilesh Rane
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NAVAL TEJAS Mk 1
Milestones Achieved
• NP-1 (KHN-T-3001) conducted her first flight on 27 April 2012. The twin seater was piloted by Commodore JA Maolankar (Retd) and Wing Commander Malteesh Prabhu.
• NP-2 (KHN-3002) conducted her first flight on 07 February 2015. The single seater was piloted by Captain Shivnath Dahiya (retd).
• NP-1 successfully completed the first arrested landing on 13 September 2019 at INS Hansa naval air station in Goa. NP-1 was piloted by Commodore JA Maolankar (Retd) with ground assistance from Captain Shivnath Dahiya (Retd), Landing Safety Officer and Commander JD Raturi (Retd), Test Director. As per NDTV news reporter, Vishnu Som, NP-1 decelerated in about 2 seconds from 244 km/h (132 knots) to zero km/h hour by snagging the wire on the test runway with the hook attached to the jet's fuselage. In 87 metres, the jet came to a full stop. NP-1 undertook a second arrested landing, again on 13 September 2019, from INS Hansa. This time NP-1 was piloted by Captain Shivnath Dahiya (Retd).
• NP-2 successfully completed the first ski jump take-off and arrested landing, in the same flight, at INS Hansa on 29 September 2019. NP-2 took off at 1621 hours and was trapped at 1631 hours.
• NP-1 successfully completed the first night arrested landing on 12 November 2019 at 1845 hours at INS Hansa.
Production Run
Construction Number ... Serial Number ... Aircraft First Flight ... Pilot(s)
• NP-1 ... KHN-T-3001 ... 27-Apr-12 ... Commodore Jaideep Maolankar (IN) and Wing Commander Malteesh Prabhu (IAF)
• NP-2 ... KHN-3002 ... 07-Feb-15 ... Captain Shivnath Dahiya (IN)
• NP-5 ... KHN-T-30XX ... trainer variant
• NP-6 ... KHN-30XX ... fighter variant
• NP-7 ... KHN-30XX ... fighter variant
Design Specifications
• Length: 13.2 metres
• Height: 4.4 metres
• Wingspan: 8.2 metres
• Wing Area: 40 square metres
• Empty Weight: 7.5 Tons
• Maximum Take Off Weight: 13.2 Tons
• Internal Fuel: 2.5 Tons
• Engine: General Electric F404-IN20 turbofan with military thrust of 54 kN and afterburner thrust of 84 kN.
Performance
• Maximum Speed: Mach 1.4
• Service Ceiling: 50,000 feet
• G Limits: +8g / -3.5g
Photographs - Naval Tejas Mk1
Photo below is courtesy of Hindustan Aeronautics Ltd ---> https://twitter.com/HALHQBLR
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NAVAL TEJAS Mk 2
Future Milestones
• First flight expected end 2023
Production Run
Construction Number ... Serial Number ... Aircraft First Flight ... Pilot(s)
• NP-3 ... KHN-30XX ... fighter variant
• NP-4 ... KHN-30XX ... fighter variant
Design Specifications
• Length: 14.6 metres
• Wingspan: 8.9 metres
• Wing Area: 44 square metres
• Maximum Take Off Weight: 17 Tons
Performance
• Maximum Speed: Mach 1.6
• Service Ceiling: 50,000 feet
• G Limits: +8g / -3g
Photographs - Naval Tejas Mk2
Photos below are courtesy of Vijainder K Thakur ---> https://twitter.com/vkthakur
Photo below is courtesy of ADG (M&C) DPR, Govt of India ---> https://twitter.com/SpokespersonMoD
Last Page of Previous Thread ---> viewtopic.php?f=3&t=7181&start=960
Aeronautical Development Agency (ADA) webpage on the Naval Tejas Mk1/Mk2 ---> https://www.ada.gov.in/images/Navy.htm
Acronyms:
• NP ---> Naval Prototype
• KHN-T ---> Two Seat Trainer
• KHN ---> Single Seat Fighter
-----------------------------------------------------------------------------------------
A Detailed Look At The Design Evolution Of India’s Naval-LCA Mk1 Fighter
http://delhidefencereview.com/2019/10/1 ... 1-fighter/
By Indranil Roy and Nilesh Rane
-----------------------------------------------------------------------------------------
NAVAL TEJAS Mk 1
Milestones Achieved
• NP-1 (KHN-T-3001) conducted her first flight on 27 April 2012. The twin seater was piloted by Commodore JA Maolankar (Retd) and Wing Commander Malteesh Prabhu.
• NP-2 (KHN-3002) conducted her first flight on 07 February 2015. The single seater was piloted by Captain Shivnath Dahiya (retd).
• NP-1 successfully completed the first arrested landing on 13 September 2019 at INS Hansa naval air station in Goa. NP-1 was piloted by Commodore JA Maolankar (Retd) with ground assistance from Captain Shivnath Dahiya (Retd), Landing Safety Officer and Commander JD Raturi (Retd), Test Director. As per NDTV news reporter, Vishnu Som, NP-1 decelerated in about 2 seconds from 244 km/h (132 knots) to zero km/h hour by snagging the wire on the test runway with the hook attached to the jet's fuselage. In 87 metres, the jet came to a full stop. NP-1 undertook a second arrested landing, again on 13 September 2019, from INS Hansa. This time NP-1 was piloted by Captain Shivnath Dahiya (Retd).
• NP-2 successfully completed the first ski jump take-off and arrested landing, in the same flight, at INS Hansa on 29 September 2019. NP-2 took off at 1621 hours and was trapped at 1631 hours.
• NP-1 successfully completed the first night arrested landing on 12 November 2019 at 1845 hours at INS Hansa.
Production Run
Construction Number ... Serial Number ... Aircraft First Flight ... Pilot(s)
• NP-1 ... KHN-T-3001 ... 27-Apr-12 ... Commodore Jaideep Maolankar (IN) and Wing Commander Malteesh Prabhu (IAF)
• NP-2 ... KHN-3002 ... 07-Feb-15 ... Captain Shivnath Dahiya (IN)
• NP-5 ... KHN-T-30XX ... trainer variant
• NP-6 ... KHN-30XX ... fighter variant
• NP-7 ... KHN-30XX ... fighter variant
Design Specifications
• Length: 13.2 metres
• Height: 4.4 metres
• Wingspan: 8.2 metres
• Wing Area: 40 square metres
• Empty Weight: 7.5 Tons
• Maximum Take Off Weight: 13.2 Tons
• Internal Fuel: 2.5 Tons
• Engine: General Electric F404-IN20 turbofan with military thrust of 54 kN and afterburner thrust of 84 kN.
Performance
• Maximum Speed: Mach 1.4
• Service Ceiling: 50,000 feet
• G Limits: +8g / -3.5g
Photographs - Naval Tejas Mk1
Photo below is courtesy of Hindustan Aeronautics Ltd ---> https://twitter.com/HALHQBLR
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NAVAL TEJAS Mk 2
Future Milestones
• First flight expected end 2023
Production Run
Construction Number ... Serial Number ... Aircraft First Flight ... Pilot(s)
• NP-3 ... KHN-30XX ... fighter variant
• NP-4 ... KHN-30XX ... fighter variant
Design Specifications
• Length: 14.6 metres
• Wingspan: 8.9 metres
• Wing Area: 44 square metres
• Maximum Take Off Weight: 17 Tons
Performance
• Maximum Speed: Mach 1.6
• Service Ceiling: 50,000 feet
• G Limits: +8g / -3g
Photographs - Naval Tejas Mk2
Photos below are courtesy of Vijainder K Thakur ---> https://twitter.com/vkthakur
Photo below is courtesy of ADG (M&C) DPR, Govt of India ---> https://twitter.com/SpokespersonMoD
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Only one word for it - Beeeoootifulllll!
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
It is beautiful. Can the gurus please check the specs of the Naval Tejas Mk1 in the first post?
I lifted the specs off the wiki page and I am sure it is wrong. Mods, please edit and add additional specs as you deem fit.
I lifted the specs off the wiki page and I am sure it is wrong. Mods, please edit and add additional specs as you deem fit.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Admiral-ji, great work on collating all this information and putting these 3 threads at the top.Rakesh wrote:It is beautiful. Can the gurus please check the specs of the Naval Tejas Mk1 in the first post?
I lifted the specs off the wiki page and I am sure it is wrong. Mods, please edit and add additional specs as you deem fit.
Not sure if the vast majority of the Indian population gets a kick out of all this, but I sure do. That's why I keep coming back to BR for 20+ years.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Why was irst left off?
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
https://twitter.com/vkthakur/status/1099285012287873029 ----> The LCA Mk 2 design has not been wind tunnel tested. What has been wind tunnel tested is this Mk 1 model with close coupled canards. The performance gains from the canards were marginal which is why it's possible that the canards would be dropped.
Above tweet is in response to his own tweet below....
https://twitter.com/vkthakur/status/1099285012287873029 ---> The IAF MWF (LCA Mk2) design is less matured than the LCA Navy Mk2 design. My understanding is that the close coupled canards aren't a done deal. Their negative impact on RCS and their underwhelming aerodynamic payoff during initial wind tunnel testing cast a doubt.
Above tweet is in response to his own tweet below....
https://twitter.com/vkthakur/status/1099285012287873029 ---> The IAF MWF (LCA Mk2) design is less matured than the LCA Navy Mk2 design. My understanding is that the close coupled canards aren't a done deal. Their negative impact on RCS and their underwhelming aerodynamic payoff during initial wind tunnel testing cast a doubt.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
VK Thakur just affirming your question above....tweet below uses the third picture from top in this thread.John wrote:Why was irst left off?
https://twitter.com/vkthakur/status/1098644890647490560 ---> Note the almost frame-less canopy and the sharply sloping and short nose section of the LCA Navy Mk 2 affording excellent cockpit visibility for landing. Also, no IRST as in the IAF MWF! Indeed, a Navy thoroughbred!
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Can’t wait to post in this thread when the Naval Tejas lands and hooks on the Vikrant or Vikramaditya!
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
How much fuel in the naval mk2? The bulging top and sides seem to indicate a lot more fuel... would be nice if they do 3800-4200 kgs of fuel and about 4500 kgs of payload..
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
What about first flight for Naval Mk2 - any dates shared for that?
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Can they de-risk the AMCA wing, where the rear of the wing is curved, by trying it out on the LCA Navy? I don't know about wing loading but drag was a concern given the engine thrust
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Vasu,
I do not understand.
What risk of the AMCA wing are you concerned about (and why) and how are you trying to determine and mitigate that? If it is drag, then the wing alone is not the contributor, how and where the wings are placed etc are important - Mk 2 has it placed differently and on a wider fuselage, so results would not be same. A wing tunnel model would allow for greater study and instrumentation and would also allow you to change the design without costs associated in making and fitting wings etc.
If it is manufacturing risk, then make a prototype (metal cutting, etc). If it is something else, then soe other action (e.g. prototype plane and wing)
Wing loading used to be a handy proxy for overall maneuverability: based on weight : airplane+payload (fuel+weapon) and lift area. But in newer generations, even the body, canard etc are used to generate lift, so these rough rules of thumb are not as useful.
Next as BVR starts dominating, the maneuverability becomes less significant than situational awareness, training and good performing missiles . i.e. a good radar, sensor fusion, to see and identify an enemy and other threats , engine etc to achieve high energy/high thrust/high speed where feasible, training for tactics, and good performing missiles to knock out the enemy from further away.
Maneuverability is still needed because you may wind up with WVR fight sometimes and also for some edge cases to evade enemy missiles.
I do not understand.
What risk of the AMCA wing are you concerned about (and why) and how are you trying to determine and mitigate that? If it is drag, then the wing alone is not the contributor, how and where the wings are placed etc are important - Mk 2 has it placed differently and on a wider fuselage, so results would not be same. A wing tunnel model would allow for greater study and instrumentation and would also allow you to change the design without costs associated in making and fitting wings etc.
If it is manufacturing risk, then make a prototype (metal cutting, etc). If it is something else, then soe other action (e.g. prototype plane and wing)
Wing loading used to be a handy proxy for overall maneuverability: based on weight : airplane+payload (fuel+weapon) and lift area. But in newer generations, even the body, canard etc are used to generate lift, so these rough rules of thumb are not as useful.
Next as BVR starts dominating, the maneuverability becomes less significant than situational awareness, training and good performing missiles . i.e. a good radar, sensor fusion, to see and identify an enemy and other threats , engine etc to achieve high energy/high thrust/high speed where feasible, training for tactics, and good performing missiles to knock out the enemy from further away.
Maneuverability is still needed because you may wind up with WVR fight sometimes and also for some edge cases to evade enemy missiles.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
It is beautiful except for the stabilator. Just feels like an after thought with a delta wing...
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
I feel that the Mk2 IAF and Navy versions still have some tweaks to be made before the designs are frozen, and there's scope for the two designs to converge further. Especially w.r.t. to canards and stabilators...
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Aeromag show daily 1
Interview-Dr. Girish S. Deodhare Programme Director, Combat Aircraft & Director, ADA
Interview-Dr. Girish S. Deodhare Programme Director, Combat Aircraft & Director, ADA
Navy Mark-2 design has been completed and the aircraft is being realised and it should be ready in about 18 months.(July 2020)
We plan to complete Shore Based Carrier Compatibility testing on LCA Navy Mk1 this year and progress to realisation of LCA Navy Mk2 for operational deployment on the carrier. The design of the twin engine fifth generation deck based fighter has also commenced
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
So LCA Navy Mk2 will come before MWF.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Looks like that if we take into account that metal cutting for MWF is about to start whereas Navy Mk2 is already in (early stages of?) fabrication. Atleast the first flight of Navy Mk2 should be before that of MWF.JTull wrote:So LCA Navy Mk2 will come before MWF.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
@Rakeshsankum wrote:Aeromag show daily 1
Interview-Dr. Girish S. Deodhare Programme Director, Combat Aircraft & Director, ADA
Navy Mark-2 design has been completed and the aircraft is being realised and it should be ready in about 18 months.(July 2020)
We plan to complete Shore Based Carrier Compatibility testing on LCA Navy Mk1 this year and progress to realisation of LCA Navy Mk2 for operational deployment on the carrier. The design of the twin engine fifth generation deck based fighter has also commenced
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
@Sivab: Does that mean a prototype will be rolled out in July 2020 ?
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
It sounds like that is the best interpretation, since he says design has been completed. Note wording "aircraft is being realised and it should be ready in about 18 months". We also know they were working on Navy Mk2 before AF Mk2. Remember navy started the whole Mk2 thing and Cdr. Balaji was ADA chief. He must have been pushing Navy Mk2 along till Navy's cold feet during his tenure. He was very disappointed in a TV interview then and must be happy now.Rakesh wrote:@Sivab: Does that mean a prototype will be rolled out in July 2020 ?
Added later: See this link
https://www.livefistdefence.com/2017/02 ... -back.html
Parrikar made this possible per the article. What a loss.‘We’re aiming for a first flight of the LCA Navy Mk.2 in late 2020 or early 2021. The detailed design will be complete by 2019. To save time, we’ve already ordered raw materials required,’ Balaji says.
That article has lot of details. Probably add it to first post.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Just a question here , Why don’t they push a standard design for navy and AF with mk2 ? If canards are good then why not have on naval variant and if rear tail is good why not have on iaf variant ?
We don’t see a Rafale or 29K with different configuration for navy and af
We don’t see a Rafale or 29K with different configuration for navy and af
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Could Mk2 tail plane be to compensate for weight of MLG and tail hook which are both behind the CG?Austin wrote:Just a question here , Why don’t they push a standard design for navy and AF with mk2 ? If canards are good then why not have on naval variant and if rear tail is good why not have on iaf variant ?
We don’t see a Rafale or 29K with different configuration for navy and af
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
N Tejas had MLG and Tail Hook but they had levcons
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
There is a report in the Paki forces td. a report from the Paki press that the Chins plan to transfer the Liaoning to Pak to counter the IN's carrier forces in the IOR.China is to build upto 6 CVs, most N-powered.The Liaoning iz being used mainly for trainig purposes.It makes sense for this transfer as it would obviate a PLAN CBG transiting the Malacca Straits.Instead, proxy Pak, reduced to a Chin province , will become along with the sale of 8 Yuan class AIP subs the de- facto IOR fleet of the PLAN.Costs for China isn't a problem, they're simply transferring their assets to Paki territory in a somewhat manner as the US stations hige forces in the Gulf states, except that the Pakis will be manning the assets.
Now this will coincide with thd development of Chin naval stealth birds.It's not going to happen tomorrow but at the earliest by the middle of the next decade.I seriously doubt that an SE NLCA will be a worthwhile proposition for the IN, with itsimited capability, unless my idea of leapfrogging the Mk-2 which will be an almost total redesign aerodynamically, a larger aircraft probably Gripen size or larger with canards et al, has stealth added to it in larger measure to become our LCA-S
perhaps the smallest stealth bird of all flying.
.
Now this will coincide with thd development of Chin naval stealth birds.It's not going to happen tomorrow but at the earliest by the middle of the next decade.I seriously doubt that an SE NLCA will be a worthwhile proposition for the IN, with itsimited capability, unless my idea of leapfrogging the Mk-2 which will be an almost total redesign aerodynamically, a larger aircraft probably Gripen size or larger with canards et al, has stealth added to it in larger measure to become our LCA-S
perhaps the smallest stealth bird of all flying.
.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Austin, a close coupled canard is not the same as a stabilizer.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
The liaoning transfer is hogwash, it will be painted with a moon and star but be fully managed by the Chinese. It is a good pretext to deploy their carrier in our waters
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
IMO, it purely has to do with the out of sync between the two programs. There is every indication that LCA takes precedence over NLCA and hence it doesn't get needed resources always. While MWF is a significant redesign, the mods in NLCA now we see over and above what we have known previously are more like further work to make existing design work. I still hope We may see navalised MWF in future. Currently the focus is just on to prove the design and deployment capability.Austin wrote:Just a question here , Why don’t they push a standard design for navy and AF with mk2 ? If canards are good then why not have on naval variant and if rear tail is good why not have on iaf variant ?
We don’t see a Rafale or 29K with different configuration for navy and af
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Got it Jay , Indranil ... Thanks
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Wrong thread! But, that'll never happen. Moon & star are enough reasons for IN to sink it. PLAN wouldn't risk it as it'd give them a bad name.suryag wrote:The liaoning transfer is hogwash, it will be painted with a moon and star but be fully managed by the Chinese. It is a good pretext to deploy their carrier in our waters
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
new NLCA MK2 has Vortex flaps. I am surprised to see no one has pointed it our so far.Austin wrote:N Tejas had MLG and Tail Hook but they had levcons
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Where? do you have a picture?
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Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Sorry if its getting repeated.. LCA NP5 in making at HAL.
Source: DFI.
As far as i understand, NP5 is LCA Navy mk2 / NLCA MK2 !!
@Rakesh,JayS,IR can confirm.
Source: DFI.
As far as i understand, NP5 is LCA Navy mk2 / NLCA MK2 !!
@Rakesh,JayS,IR can confirm.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
NP5 is NLCA mk1trainer.
NP3 and NP4 are NLCA mk2 single seater.
NP3 and NP4 are NLCA mk2 single seater.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
I cannot see the image.ashishvikas wrote:Sorry if its getting repeated.. LCA NP5 in making at HAL.
Source: DFI.
As far as i understand, NP5 is LCA Navy mk2 / NLCA MK2 !!
@Rakesh,JayS,IR can confirm.
See interview of Dr Deodhar in Aeromag posted above..? He says NLCA Mk2 prototype is under making and will be completed in 18 months.
Its been in making for a while, IIRC.
What Dr Deodhar says is NLCA Mk2 will be stepping stone towards the final objective of making a Twin engine 5th Gen Naval fighter. ADA has already started working on such fighter. Its likely be modified AMCA. In this context perhaps the stabilators make more sense than canards.
PS: Just saw sankum's post.
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Last image in 1st post.JTull wrote:Where? do you have a picture?
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Sorry mate, I'm a novice in this matter, but I expect them to be on the leading edge of the wing. I don't see them on the NP5 fuselage.ashishvikas wrote:Sorry if its getting repeated.. LCA NP5 in making at HAL.
As far as i understand, NP5 is LCA Navy mk2 / NLCA MK2 !!
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Thanks.JayS wrote:Last image in 1st post.JTull wrote:Where? do you have a picture?
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Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
ashishvikas wrote:Sorry if its getting repeated.. LCA NP5 in making at HAL.
Source: DFI.
As far as i understand, NP5 is LCA Navy mk2 / NLCA MK2 !!
@Rakesh,JayS,IR can confirm.
Image
https://i.imgur.com/hUitJBC_d.jpg?maxwi ... ity=medium
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
Thanks. Looks like MK1 to me, from intake position vis-à-vis cockpit.ashishvikas wrote:
Re: Naval Tejas Mk1/Mk2: News & Discussion - 23 February 2019
^^ The image also seems to have the jigless assembly which the tenders were talking about? Quite interesting way of doing it.
It is part of the navy video, posted on DFI. The yellow jig rotates the whole ac.
https://www.youtube.com/watch?v=juAsw-Y6K7A watch at 10:32 onwards
It is part of the navy video, posted on DFI. The yellow jig rotates the whole ac.
https://www.youtube.com/watch?v=juAsw-Y6K7A watch at 10:32 onwards