Teer Jumps to the conclusion even before reading articles properly , IDRW report mentioned that since LSP are delivered years a part , This is leading to differences in aircraft , which is a problem since older aircrafts ( LSP-1/2/3 compared to LSP-7 ) will need to be pulled out from flights for upgrades effecting flight tests , He is trying to defend that LSP are supposed to be different but the Question is why HAL was able to deliver only 6 Aircrafts (LSP-1/2/3/4/5/7) in last 5 Years ?? , aren't PV Tejas supposed to be different but also LSP ? will IAF accept Difference in batches of SP Tejas ??
Hmm, that keypublishing link is not opening for some reason. Might be an ISP issue.
But IDRW is accessible and my adaware program says thanks but no thanks! Good then, that it is copied on this forum.
Their claims just dont make sense though. They clearly don't know much about the LCA, allusions to inside knowledge apart.
First, the LCA is in development & there are multiple reports stating that only the last few LSPs will be the standard the MK1s will be designed to! What talk of HAL taking time to make the LCAs when the aircraft are undergoing so many design revisions and tech insertions, which is after all the very basis of the program. That is, to develop a local aerospace industry.
We know that ADA/HAL effectively redesigned the entire fuel system after issues regarding possible flight safety concerns & leakage, and this was completed last year. We know that NAL supplied an autopilot which was incorporated into the LCA recently. Ajai Shukla's blog had the so called hush hush pics corroborating the MOD note that the LCA was receiving the local EW suite (a derivative of the MiG-27 suite). We know that an advanced OBOGs (MK2/3) is due for the LCA as well. That the radar issue was fixed just a couple of years back, and clearly Elta managed to deliver a functioning set with all the Indian components only recently since its now making its appearance on the LCAs..LSP 7 PR mentions it has an ILS as well.
Of course having different LSPs with different fits challenges the program. That is exactly the problem a country will face when developing subsystem after subsystem for the first time. With no program prior to have developed all these systems already, which could just be fit into the initial prototypes itself. And then making improved systems.
And limited funds to make a limited number of prototypes. Otherwise, yes HAL could have made 2-3 of each LSP-1, LSP-2 etc, but the advantages may not have accrued linearly. Take a look at the F-35 program. Concurrent engineering, build-fly-fix-fly, is proving more challenging than expected. So production rates have been slowed down, to fix all the issues to begin with, or as many as possible, and only then launch the aircraft.
Having said that ADA clearly adopted best in class procedures from worldwide programs where they could.http://www.rand.org/content/dam/rand/pu ... /R3687.pdf
Mentions that TDs were used by Rafale & EAP (austere prototyping), Lavi & Gripen went for fully missionized test aircraft with sensors developed concurrently.
Lets go to the LCA.
So, the TDs were the austere aircraft to demonstrate aircraft functional capability, after which "Full Scale Development" aka FSED in Tejas parlance was granted, and these comprise of both the PVs and LSPs, which have full weaponization & sensor suites being iteratively added. It was the IAF which basically set the pre-condition that FSED would only be launched after the TD phase was demonstrated to their satisfaction. Add sanctions etc, and its a wonder the program continued.
No airframe is being wasted. PVs & LSPs are being used for A2G trials, while PV-1 took the full internal EW suite, and LSP-7 took off with a sensor fit close to the IOC standard. LSPs & SPs will be used to get to FOC as well, if PVs run out of airframe hours by that time.
So lets look at IOC/LSP intent.
LCA Tejas LSP-7 Flies
Tejas Limited Series Production - 7 (LSP-7) aircraft took-off for its maiden flight from HAL airport at 4:27 pm on 9th March 2012. This test flight is significant for the program, as LSP -7 build-standard is close to the initial operational clearance (IOC) standard. Accordingly LSP -7 aircraft, along with LSP - 8 will be offered to the Indian Air Force for user evaluation trials (UET).
The flight was also significant considering the fact that for the first time “Production Test Schedule” was used for the first flight of an LSP aircraft in this program. This is also the first time that maiden flight of the aircraft was not accompanied by the customary ‘chase’ aircraft, which is an indicator to the level of confidence in the machine.
Flight lasted 28 minutes with Gp Capt KK Venugopal at the controls in the cockpit and Wg Cdr Kabadwal of the National Flight Test Centre (NFTC) as Test Director in the telemetry. During the test flight, performance of the aircraft systems including Multi-mode Radar (MMR), Helmet Mounted Display System (HMDS), Auto-pilot and Instrument Landing System (ILS) was satisfactory, providing a moment of pride for all the stake holders which include ADA, HAL, IAF, CEMILAC, DG AQA, ADE and NAL among others.
No new Tejas airframe has flown since November 2010 flight of the LSP-5 (the LSP-6 is a special airframe to achieve envelope expansion). Now, with final ground tests nearing completion, the airframe is finally ready for its first flight. The LSP-7 and LSP-8 will be the final two limited series production aircraft. They will be followed by series production (SP-1, 2 etc) aircraft.
They have kept LSP-6 for increasing the flight envelope & achieve maximum possible AoA with the current configuration. Makes sense to do so with an aircraft of the LSP series, which approach as closely as possible (with iterative development) to the IOC/FOC standard, then with the PV's, which will have differing aero-mass characteristics, different handling etc.
Next, IDRW claim that the current performance is no great deal or some such thing. Did they even do some basic comparison of weapons loads, sensor performance versus other IAF aircraft like the MiG-27 etc? They dont even appear to know the well known by now fact that full A2A capability is slated for FOC, as it always was! So what is new?
Looks like it is another publicity hungry site like that 8AK one which used to manufacture news to get publicity.