LCA TEJAS MK1 & MK1A: News and Discussion

[ARVION]

9000

That's almost 40 years of service life with 240 hours of flying every year.

Dosent the aircraft are used by multiple pilots ?

 

[tsunami]

Dosent the aircraft are used by multiple pilots ?

240 hours of annual service is pretty good for any Aircraft. Pilots on both simulator as well as aircraft. Anywhere between 120-150 Hrs a year is good for pilots.

 

[Chandragupt Maurya]

Once we fit LCA Tejas with our own indigenous engine it will become the workhorse of IAF

 

[Raj Malhotra]

Fatigue life of Delta platforms is very good.

 

[ARVION]

Once we fit LCA Tejas with our own indigenous engine it will become the workhorse of IAF

Even the IHI succeed in creating a 3.5 Meter's, .6 meter in diameter and 600 kg XF 5 engine capable of 50kn thrust and we struggle with kaveri for a reason's, infracture's.

 

[ARVION]

Fatigue life of Delta platforms is very good.

Fatigue life of what, do you want to refer to the LCA Teja's.

 

[vayuu1]

LCA-Tejas Production slips further due to teething issues – Indian Defence Research Wing

idrw.org

 

[ARVION]

LCA-Tejas Production slips further due to teething issues – Indian Defence Research Wing

idrw.org

Hope that are able solve the part's supply problem's.

 

[vayuu1]

Hope that are able solve the part's supply problem's.

TBH given the timeline, a private player would have not only done a better job but at much quicker time and would have produced at much larger quantity.

 

[ARVION]

TBH given the timeline, a private player would have not only done a better job but at much quicker time and would have produced at much larger quantity.

Still better than the OFB's.

 

[WolfPack86]

LCA-Tejas Production slips further due to teething issues

If Two months of Lockdown at the LCA-Tejas production facility were not enough to derail the schedule of the production of the FOC configured LCA-Tejas Mk1, poor management of the LCA-Tejas supply chain has come as an additional headache for state-owned Hindustan Aeronautics Limited (HAL) which is in charge of the production of the LCA-Tejas Mk1 is now also facing issues with the first two FOC configured aircraft which already has been assembled. idrw.org was informed that the Indian Air Force (IAF) is facing some Quality issues and but majorly teething issues with the new FOC configured LCA-Tejas Mk1 which are equipped with new equipment due to which delivery of further aircraft has been put on hold till these technical issues are resolved along with supply chain issues which due to pandemic has affected the supply chain mostly coming from the MSME sector which is severely affected due to shortage of manpower. HAL claims it has enough components to assemble 5 more Tejas Mk1, it will still require to identify and see alternatives to few of the supply vendors if they are not able to resume supply of components soon. some imported parts and equipment which were stuck due to International lockdown will resume soon as International partners have resumed work. idrw.org was informed that teething issues were expected as the aircraft are new and are way different when it comes to onboard equipment than the 16 IOC configured LCA-Tejas Mk1 which were manufactured earlier and HAL is confident it will be resolved to the satisfaction of the end-user (IAF) soon but time lost will not be recovered in the process which will make it very difficult for HAL to deliver 8 LCA-Tejas Mk1 for FY 2020-21 as per original delivery schedule.

LCA-Tejas Production slips further due to teething issues – Indian Defence Research Wing

idrw.org

 

[Suryavanshi]

TBH given the timeline, a private player would have not only done a better job but at much quicker time and would have produced at much larger quantity.

Even a private one couldn't have done any better here, the supply chain is disrupted due to COVID

 

[Suhaan]

@IndianHawk @Bleh is there really an issue with its air intake?
Or import lobby trying real hard?

 

[ARVION]

@IndianHawk @Bleh is there really an issue with its air intake?
Or import lobby trying real hard?

Issue's were there, but rectified, not a major concern's.

 

[MonaLazy]

issue with air intake?

There is and isn't.

Test Pilots explains why Pilots are not cleared to fly above 1.6Mach on LCA-Tejas – Indian Defence Research Wing

idrw.org

Thakur explains that simple pitot type intake design used on LCA-Tejas is what prevents LCA-Tejas to have engineered speed of 2.0M while to achieve this speeds, LCA air intakes could have to re-done and also employ intakes cones as seen in Mirage-2000 and Mig-21 which moves move in or out of the intakes to maintain the shockwave in its the proper position, ahead of the first stage of the engine and need to be adjusted by the pilot.

Lack of intakes cones in LCA-Tejas means a hassle-free operation for the Pitot but this new phenomenon is not limited to LCA-Tejas alone but many are countries are now limiting Mach speed on many modern fighter jets after intense study and data collected over the years of the max speed at different attitudes as pointed by Thakur, who gives an example how below 22000 feet altitude Mach speed over 1.6 is not possible and a plane flying at Mach 1.8 has the advantage of only 60knot when it is above 28000 feet altitude.

Probably because LCA was India's first stab at a modern 4th generation fighter- they wanted to keep it simple & the intake was designed to be the simple pitot type with little moving parts and that limits its speed to 1.6M.

These days the airplane speed doesn't matter as much as speed, agility & NEZ range of BVRAAM.

 

[ARVION]

There is and isn't.

Test Pilots explains why Pilots are not cleared to fly above 1.6Mach on LCA-Tejas – Indian Defence Research Wing

idrw.org

Probably because LCA was India's first stab at a modern 4th generation fighter- they wanted to keep it simple & the intake was designed to be the simple pitot type with little moving parts and that limits its speed to 1.6M.

These days the airplane speed doesn't matter as much as speed, agility & NEZ range of BVRAAM.

I though minor change's were made to the Air intake's.

 

[varun9509]

There is and isn't.

Test Pilots explains why Pilots are not cleared to fly above 1.6Mach on LCA-Tejas – Indian Defence Research Wing

idrw.org

Probably because LCA was India's first stab at a modern 4th generation fighter- they wanted to keep it simple & the intake was designed to be the simple pitot type with little moving parts and that limits its speed to 1.6M.

These days the airplane speed doesn't matter as much as speed, agility & NEZ range of BVRAAM.

Will we change it in Mk1A, Mk2 and ORCA?

 

[Bleh]

Will we change it in Mk1A, Mk2 and ORCA?

No such plans... Airspeeds above 1.6M are not necessary & stress the fuselage to reduce it service life.

 

[IndianHawk]

@IndianHawk @Bleh is there really an issue with its air intake?
Or import lobby trying real hard?

No issue with intake. It works as designed. Most modern jets don't go beyond 1.6-1.8 Mach. So no necessity for unnecessary complication . And new tech like DSi intake also limits speed . So that's the general direction of it .

Only issues are supply chain disruption as of now.

 

[patriots]

The teething issues with Tejas foc was normal....
A lots of work going on.....you will see them
Tejas with astra progressing well ...