DMRL gets a breakthrough on Single Crystal Blade technology

[gslv mk3]

What is FADEC?

Full Authority Digital Engine Control

 

[vsdave2302]

Yes, Avinash chander rightly said that we lags behind in material part. Whether it is the material of Aeroengine blade or chips. We need to work in this area on national priority basis. Project director should have more freedom to acquire and sepnd resource. Projects should be monitored at highest level periodically etc. Technology transfer should be encourage.

 

[Rangila]

Sir can you explain what kind of bearings are used for jet engines. I've worked on steam turbines and these have Babbitt lines Journal bearings with oil lubrication. However owing to much higher speeds and temperatures, what kind of bearing and materials are used in je

 

[fsayed]

This from Saurav Jha's twiiter

This is absolutely huge in terms of indigenous turbofan development if we are able to make better SCBs than the ones in the MKI engine.

Plz provide link of source

 

[Kinetic]

Engine is the most critical part India should look at now.

 

[Beast]

Tejas will be BVR king of Asia, it has very low radar cross section thanks to small size and composites, so it will difficult to detect and track. It has a very powerful Israeli radar and has Indian Computers to share and receive data from Awacs and other radar. It has powerful world-class engines, so it can outrun its adversaries. It has BVR missiles so it can attack adversaries at longer range.

So Tejas will detect and track JF17 earlier, launch BVR missiles, take a U-turn and escape into Indian SAMs range before JF17 can even detect it. JF17 is a perfect target target for Tejas, JF17 higher radar cross section, weaker radar and slower.

Tejas will shoot down lots of JF17s, even a rookie Indian pilot flying Tejas will dominate an ace pakistani pilot in JF17. Tejas will be a game changer.

No one can deny the BVR edge Tejas has over JF17.

You get an award for self bragging.

 

[Vijyes Yechury]

India lacks 2 things for engine- single crystal blade and blisk disk compressor of super alloys. With these two, it is possible for kaveri to get 90kN thrust and reduce weight by 10-15%. This is the hardest part and hopefully India will be able to get it right.
China due to sanctions are worse off than India in even getting the right alloy composition. India could just do a metallurgical analysis of GE404 engine to find the exact composition. But the process of single crystal and blisk is quite challenging to overcome. As of now, India using directional crystal blade and has the ability to make 1st gen single crystal blades (probably 2nd too) which are weaker than directional ones. India needs 3rd gen Crystal to get 90kn thrust. Once that is got, fine tuning friction etc can get the thrust upto 105kN without increasing weight for AMCA

 

[kṣamā]

@Vijyes Yechury Thanks for revivng this thread. You reminded me of some old members. Missed those days...

 

[Majet Raha]

You get an award for self bragging.

I was reading the chini defense forum, and i realized that bragging is the area where we will never catch up with you guys

 

[Han Patriot]

I heard Snecma provided the FADEC for Kaveri.

 

[gslv mk3]

I heard Snecma provided the FADEC for Kaveri.

You hear a lot of things, but fail to provide a source.

It was designed in-house.

http://drdo.gov.in/drdo/pub/nl/dec2001/newfacility.htm

 

[Vijyes Yechury]

You hear a lot of things, but fail to provide a source.

It was designed in-house.

India is expert in software programming and even electronics programming and designing. India may lack electronics manufacturing in large scale but is actually the hub of R&D for electronics. It has a military R&D fabrication facility upto 180nm technology for military grade chip manufacturing (military chips use 90nm + technology only for reliability issues in small transistors).

India importing FADEC is a joke.