HAL Tejas | Updates, News & Discussions

[sudhir007]

Flight test update

LCA-Tejas has completed 1807 Test Flights successfully. (20-Mar-2012).
(TD1-233,TD2-305,PV1-242,PV2-218,PV3-335,LSP1-70,LSP2-202,PV5-36,LSP3-47,LSP4-46,LSP5-72,LSP7-1)

From

LCA-Tejas has completed 1801 Test Flights successfully. (15-Mar-2012).
(TD1-233,TD2-305,PV1-242,PV2-217,PV3-334,LSP1-70,LSP2-201,PV5-36,LSP3-46,LSP4-46,LSP5-70,LSP7-1)

 

[帅的一匹]

The sole responsibility of delay goes to the armed forces. The armed forces are not flexible, They want final finished product. Like I said Earlier other country forces compromise on quality where as Indian armed forces show adamant behavior.

There are many reason behind the armed forces delay tactics.

You mean the standard of FOC is too high?

 

[Black Widow]

Flight test update

LCA-Tejas has completed 1807 Test Flights successfully. (20-Mar-2012).
(TD1-233,TD2-305,PV1-242,PV2-218,PV3-335,LSP1-70,LSP2-202,PV5-36,LSP3-47,LSP4-46,LSP5-72,LSP7-1)

From

LCA-Tejas has completed 1801 Test Flights successfully. (15-Mar-2012).
(TD1-233,TD2-305,PV1-242,PV2-217,PV3-334,LSP1-70,LSP2-201,PV5-36,LSP3-46,LSP4-46,LSP5-70,LSP7-1)

Today I saw Su30MKI in bangalore sky. Its very uncommon to see MKI here.

You mean the standard of FOC is too high?

Yes its very high for Indian armed forces. They will not accept LCA if
a) It is not able to complete night mission.
b) It is unable to perform ground attack role.
c) if it is unable to perform A2A role.
d) if doesn't qualify standard
e) if it doesn't climb to a height which IAF want.
f) it can not have AoA what they want.


Earlier they wanted every thing ready, But due to A K Antoney they agree on IOC (Initial operation clearance). Sad but true.

Last but not least, Indian armed forces are free to change the requirement at any point of time. They can change the requirement at the time of delivery as well..


And finally they are free to sabotage the home made machine. In one legendary incident they sabotaged Arjuna tank (German) Engine and blamed DRDO for failure. DRDO was in shock while Greman gone crazy as there proved engine failed. (Imagine a proved German engine failed. )

 

[sancho]

The sole responsibility of delay goes to the armed forces

DRDO & MMR or Kaveri problems? ADA & drag and weight issues? IAF had their parts as well, but the biggest problem was caused by DRDO and ADA.

 

[Thundersword]

Today I saw Su30MKI in bangalore sky. Its very uncommon to see MKI here.

Actually I was surprised to see MKI's in the LSP-7 first photos. two of em' there!

 

[POPS]

Actually I was surprised to see MKI's in the LSP-7 first photos. two of em' there!

so does that mean they were in a mock dogfight or something like that?

 

[Lord Of Gondor]

^^Nope they are with the ASTE.
A BRFite spotted a MKI taking off just before the Tejas LSP7 took off.

 

[Black Widow]

Is Kavery a Failed product???

Lot of time we discuss about Kaveri engine, the question comes in mind is it a failed project??? As Kaveri is related to LCA, I thought to discuss it here. Lets go point wise

Why Kaveri
1. HAF Marut was unable to get good engine (No country was willing to sell us Engine for HAF Marut). So India decided to go for engine as well.

When Kaveri:
1. It was ambitious time line for DRDO, They started Kaveri project in 1989 and wanted it to be ready by 1997 (Just 8 years) in 300+ Mill USD. The expert believe that 4th gen engine research cost comes around 2bil USD.
2. Till date Kavery project has eat 500+ mill USD. 1/4th of experts estimate.

What Kaveri?
1. Initially it was designed for 1100KG weight , 51/84KN thrust. After many year IAF changed the requirement and they came uop with new requirement and that is 60/93-100 KN and 1100 KG weight.

What GTRE made?
1. Current K9 has 51/81 KN thrust with 1235 KG weight.
2. K10 is suppose to have 1100 KG weight and 60/93-100 KN thrust.

Point should be taken :
1. french with many year of experience took 14 years to come up with M88 Engine (To power Rafael).
2. If we cut 50 kg weight from LCA MK1 and put Kaveri into it The performance will be same what we are getting from GE404.
3. We can use is as replacement of GE404IN and RD33.

Data:
KAveri Engine
Weight: 1,235 kg
thrust: 52/81 (dry and afterburner)

GE404IN:
Weight:1036 Kg
Thrust: 49/79 KN

RD33
Weight:1,055 kg
thrust :50/81 KN.

So if you go by Airforce early requirement Kavery is failure coz its weight is 100Kg extra (Which can be compensate by good airframe design. ) Kavery is not complete failure, It can be used in any LCA MK1.



Now lets start the discussion

 

[thinkingcap81]

Hi,

What about Kaveri quality issues and the number of service hours before major engine overhauls? What are the details about rapid increases in thrust when required?

i don't know of these issues but they are important. Chinese are having similar problems even though their industry is more mature.

 

[sancho]

Is Kavery a Failed product???

Yes, because it didn't met it's prime goal, to be useful to power LCA MK1!

I have some doubts on your initially estimated weight specs of K9, because it was meant to be a light engine, with 81kN thrust, which was developed even according to western standards, so the weight aim must had been around 1000Kg or lower, but it turned out to be 1100Kg or even heavier.

Several other specs are wrong as well, GE 404 IN 20 offers 55kN and 85kN for the version we use in LCA MK1, RD 33-3 series offers 83kN and the MK version of the 29Ks even 90kN thrust, while beeing lighter as well. So currently, Kaveri is not able to replace a single foreign fighter engine and some reports says it fell way shorter in terms of thrust than you think. That's why the plan now seems to be to co-develop the Kaveri K 10 and replace the GE 404 IN20 during future upgrades of LCA MK1, because there is simply no hope for the K9 to reach that level.

So the engine itself is a major failure of DRDO, while it was a major planning failure in the LCA project, to be dependent on K9 and not using a proven stopgap engine first!

 

[帅的一匹]

LCA is over weight.

 

[DrSomnath999]

PLZ NOTE ANYONE HAVING PROBLEM VIEWING THE PICS THEN PLZ 1ST SAVE IT IN YOUR PC THEN ZOOM IT FOR BETTER VIEW

I)LCA'S AERODYNAMICS

II)LCA'S WING LOADING vs T /W RATIO IN COMPARISION TO OTHER 4TH GEN FIGHTERS

III)LCA'S STRUCTURE ,MATERIAL , WEIGHT REDUCTION & STEALTH

IV)LCA'S MULTI MODE RADAR

V)LCA'S SENSOR SUITE

VI)LCA'S ENGINE ,HYDRAULICS & USMS

VII)LCA'S COCKPIT ENVIRONMENT

VIII)LCA'S LIST OF LRU & AVIONICS

PLZ NOTE:
THIS ANALYSIS IS FROM B.HARRY & THIS PDF IS FROM B#####T R#####K.COM SO LINK WONT WORK HERE

BUT TRY GOOGLE
Google

 

[POPS]

Congratulation's on another good job DrSomnath999

 

[BlueDot_in_Space]

Just compare the diameter of LCA radar with the contemporary fighters. For such a small plane, such a big radar.

LCA ~ 650mm (MMR)

F16 ~ 660 mm (APG-66, APG-68, APG-80 families)
F-18 ~700mm (APG-65, APG-73, APG-79 families)
F-35 ~700mm (APG-81)
F-22 ~900mm (APG-77)
Gripen ~500mm (PS/05 family)
M2000 ~500mm (RDM, RDI, RDY families)
Rafale ~600mm (RBE family)
Typhoon ~700mm (ECR-90/CAPTOR family)

 

[somebozo]

Then why is India dying for 126 AMCA from France? Question for the genious?