ADA Tejas (LCA) News and Discussions

[Flame Thrower]

He is talking about Shape memory alloy(SMA) .

Can you explain more in layman terms.

Are you from aero background? some times you sound like one....

 

[Adioz]

It seems Tejas is the only 4th gen fighter in the world to use Self Healing Memory Alloys. Or are there any other 4th gen fighter with it? Btw, how many 5th gen fighter have Self Healing Memory Alloys?

Where does Tejas use Self-healing Memory alloys? What part? This is a pleasant surprise for me.

 

[NeXoft007]

Where does Tejas use Self-healing Memory alloys? What part? This is a pleasant surprise for me.

This one... Sad that its forgotten
AMCA will incorporate even more advanced versions of SMA.

 

[Adioz]

This one... Sad that its forgotten
AMCA will incorporate even more advanced versions of SMA.
View attachment 20651

When you said "Self-healing memory alloys",I thought it was used in Tejas's skin.
Still, this is not bad.

 

[Chinmoy]

Can you explain more in layman terms.

Are you from aero background? some times you sound like one....

Shape Memory Alloys are the those materials which does remember the shape in which they were casted. In layman term just take the example of a binder which we do use in day to day life. No matter how much you twist and pull it, it would regain its original shape when released. But in case of metals, thing is not like that. Heat does expand them and cold does shrink them. This expansion and shrinkage does result in metal fatigue and eventually it becomes a heavy maintenance job to replace these parts periodically to keep them up and running. But with Shape Memory Alloy, the maintenance part does comes down a lot. These alloys are generally used in those areas which are subjected to heavy metal fatigue because of expansion and shrinkage. As @NeXoft007 already posted above, we could see a lot of these in and around engine component of Tejas.

 

[tejas warrior]

Source : Gagan@BRF

Thanks a Ton to him.

 

[Prashant12]

===================================

 

[Superdefender]

Saurav Jha
@SJha1618
5m
ACM Dhanoa today said that the induction of the ALH, Akash, Astra AAM & AD radars were some of the success stories of defence indigenization
View details · Reply Retweet Like

Saurav Jha
@SJha1618
4m
Replying to @SJha1618
But the biggest success of all would be if the Air Force can bring in at least 300 + units of the HAL Tejas into its ranks.

 

[patriots]

A vertical climb to glory: Tejas enthralls at Air Force Day

 

[patriots]

tejas in national geographic

 

[patriots]

if anyone have 85 the airforceday air show please post here

specally ..if u HV tejas show .........

 

[PD_Solo]

if anyone have 85 the airforceday air show please post here

specally ..if u HV tejas show .........

See from 34:30 for Tejas...

 

[square]

Saurav Jha
@SJha1618
5m
ACM Dhanoa today said that the induction of the ALH, Akash, Astra AAM & AD radars were some of the success stories of defence indigenization
View details · Reply Retweet Like

Saurav Jha
@SJha1618
4m
Replying to @SJha1618
But the biggest success of all would be if the Air Force can bring in at least 300 + units of the HAL Tejas into its ranks.

ACM mention astra which is just get into production....
why he did not mention tejas ..

 

[dumdumdum]

Any information about SP5 & SP7 either through formal or informal channels? I guess it has been 3 months+ since SP6 rolled out .

 

[Kchontha]

ACM mention astra which is just get into production....
why he did not mention tejas ..

He might be busy thinking about f16 or gripen!?

 

[cannonfodder]

If you guys ever write please ask for more orders for MK1 (not MK1A) to keep production lines rolling. I am not sure if we will get MK1A developed and tested in time. Better to have orders for demonstrated capability; also I prefer incremental improvements in Mk1 --> MK1A.

MK1(FOC) is what we will have around next year ... hopefully. We must clearly highlight MK1 is good enough to start replacing Migs instead of waiting for MK1A to complete testing. Idle production line is utter wastage of resources and injustice to LCA program.

Let us write to Sitharaman instead. We should make every technical, technological, economic, strategic and emotional argument that we can make in that letter. We can include a pros vs cons list for the options the Air Force wants to take and the one we are suggesting. We can sign it off as a letter from all members of DFI, instead of a letter from a single person. Also, we could attach the letter to a tweet and tag her if they ignore us or give us an unsatisfactory reply. Although the chances are slim, we might be able to change something. Hope is all we have.

Edit: We could forward copies to PMO, Air HQ, HAL and ADA (and maybe to Sandeep Unnithan?).

 

[Adioz]

If you guys ever write please ask for more orders for MK1 (not MK1A) to keep production lines rolling. I am not sure if we will get MK1A developed and tested in time and I prefer incremental improvements in Mk1 --> MK1A.

MK1(FOC) is what we will have around next year ... hopefully. We must clearly highlight MK1 is good enough to start replacing Migs instead of waiting for MK1A to complete testing. Idle production line is utter wastage of resources injustice to LCA program.

Damn, I forgot all about this. Thanks for reminding me. Here: I created a new thread:
Letter by DFI to Defence Minister: Please don't kill Tejas Mk2

About Tejas Mk1 though, its not required as HAL is confident it can get Mk1A ready in time. If it cannot do that, then our claim that Tejas Mk2 will also be ready in time holds no water, and then the argument of the Air Force, that squadron strength is falling, will be accepted. We are basing the entire letter on the premise that Tejas Mk2 will be ready on time.

 

[cannonfodder]

This is what Indranil on BR is claiming: https://forums.bharat-rakshak.com/viewtopic.php?f=3&t=7368&start=480

Following is the status and plan for 40 IOC/Mk1 Tejas aircrafts:

Tejas delivered before Calendar year 2017: 3 .. (SP1, SP2, SP3)
Tejas planned for year 2017: 6 ... Cumulative Total: 3+6 = 9 <-- [2 delivered SP4 and SP6]
Tejas planned for year 2018: 8 ... Cumulative Total: 9+8 = 17
Tejas planned for year 2019: 16 ... Cumulative Total: 17 + 16 = 33
Tejas planned for year 2020: 16 or 16+ .. Here 7 MK1 type and 9 MK1A type need to produced to keep line busy in calendar 2020.

You see by year 2020, HAL would have potentially be done with IOC/MK1 type production if everything goes well. Assuming around 11 months that Tejas spends in the assembly line, component delivery(MK1A) of AESA radars, weight reduced landing gear etc need to start coming by 2019. Mk1A needs to be test completed after weight reduction and AESA etc before that. Reducing 1000kg on MK1 will be no easy task no matter what HAL claims. Testing and validating flight parameters will also take time. HAL has at-most 19-20 months to complete Mk1A & place orders to keep production line busy. This is very tight schedule and better is keep producing Mk1 while making incremental improvements in Tejas.

Tejas was supposed to done with FOC in year ... 2015, 2016, 2017. Hopefully, we will see FOC in 2018 and celebrate here on DFI. The point I am making is that some delays are expected and you never know what tantrum comes in from moody IAF. I wish well for Tejas program but we should have reasonable expectations from HAL and ADA. Mk1A and Mk2 are still paper planes, we should be demanding what is available today; HAL can always build Mk1A types(instead of Mk1) if it manages to pull off & deliver in time.

Damn, I forgot all about this. Thanks for reminding me. Here: I created a new thread:
Letter by DFI to Defence Minister: Please don't kill Tejas Mk2

About Tejas Mk1 though, its not required as HAL is confident it can get Mk1A ready in time. If it cannot do that, then our claim that Tejas Mk2 will also be ready in time holds no water, and then the argument of the Air Force, that squadron strength is falling, will be accepted. We are basing the entire letter on the premise that Tejas Mk2 will be ready on time.

 

[Steven Rogers]

This is what Indranil on BR is claiming: https://forums.bharat-rakshak.com/viewtopic.php?f=3&t=7368&start=480

Following is the status and plan for 40 IOC/Mk1 Tejas aircrafts:

Tejas delivered before Calendar year 2017: 3 .. (SP1, SP2, SP3)
Tejas planned for year 2017: 6 ... Cumulative Total: 3+6 = 9 <-- [2 delivered SP4 and SP6]
Tejas planned for year 2018: 8 ... Cumulative Total: 9+8 = 17
Tejas planned for year 2019: 16 ... Cumulative Total: 17 + 16 = 33
Tejas planned for year 2020: 16 or 16+ .. Here 7 MK1 type and 9 MK1A type need to produced to keep line busy in calendar 2020.

You see by year 2020, HAL would have potentially be done with IOC/MK1 type production if everything goes well. Assuming around 11 months that Tejas spends in the assembly line, component delivery(MK1A) of AESA radars, weight reduced landing gear etc need to start coming by 2019. Mk1A needs to be test completed after weight reduction and AESA etc before that. Reducing 1000kg on MK1 will be no easy task no matter what HAL claims. Testing and validating flight parameters will also take time. HAL has at-most 19-20 months to complete Mk1A & place orders to keep production line busy. This is very tight schedule and better is keep producing Mk1 while making incremental improvements in Tejas.

Tejas was supposed to done with FOC in year ... 2015, 2016, 2017. Hopefully, we will see FOC in 2018 and celebrate here on DFI. The point I am making is that some delays are expected and you never know what tantrum comes in from moody IAF. I wish well for Tejas program but we should have reasonable expectations from HAL and ADA. Mk1A and Mk2 are still paper planes, we should be demanding what is available today; HAL can always build Mk1A types(instead of Mk1) if it manages to pull off & deliver in time.

Sorry but the worldwide trend is, FOC is generally achieved after 7 to 8 years of IOC.....

 

[cannonfodder]

World wide trend also suggest ordering more IOC types. Where is that?

Irrespective, I am not crying here because of delayed FOC since this is only second attempt to make AC by India. So I don't know what to comment on this reply.

Sorry but the worldwide trend is, FOC is generally achieved after 7 to 8 years of IOC.....