AMCA - Advanced Medium Combat Aircraft (HAL)

[ManhattanProject]

Did anyone find out what's the thing poking out between vertical stabilisers ?

This might be it.

 

[Ajax01]

Maybe 1:40 onwards is your answer

My guess is that the serrated ones would be put in AMCA Mk2.

There has been much research in mass entrenchment of ellptical nozzle and serpentine nozzle for stealth

 

[Dessert Storm]

There has been much research in mass entrenchment of ellptical nozzle and serpentine nozzle for stealth

Could you summarise the output of that/those research in a paragraph to help us update. And how that research is being put to use in current/upcoming/planned platforms.

 

[Ajax01]

Could you summarise the output of that/those research in a paragraph to help us update. And how that research is being put to use in current/upcoming/planned platforms.

Looked through the research once more. They worked on nozzle with elliptic exit and elliptic with aft deck (ie lower bit sticking out). Elliptic has the highest mass entrainement (ie less radiation in 3-5 micrometer band) and elliptic with aft deck has less noise 26dB less. It also has a shorter jet core as well helping infrared signature. Serpentine nozzle were studied which has very significant reduction in IR signature. Elliptical nozzle is better than rectangular from a mass entrainment perspective. Thrust penalty reduction was optimized.
Also I found the paper on Fluidic TVC on UAV and the experimental nozzle diagram matches perfectly with Swift UAV nozzle. F TVC has yaw control in the paper and they are working on CLAW for this. F TVC does impose thrust penalty (lesser than conventional) like any other TVC (without the weight and complexity of all conventional TVC). It has some other unique less known advantages like more mass entrainment and lesser core jet width(lower IR sig) and increase in NPR.

 

[SavageKing456]

Btw amca will have a very special thing called microstrip waveguides In amca skin to make it even more low observable

 

[Okabe Rintarou]

Btw amca will have a very special thing called microstrip waveguides In amca skin to make it even more low observable

Sounds like a type of radar absorbent structure. I don't know much about waveguides, but sounds like they implement it on a microstrip which they embed in some composite structure.

 

[SavageKing456]

Sounds like a type of radar absorbent structure.

It is,basically those waveguides can deform the incoming radar waves and reduce their energy,ultimately gets absorbed along the skin

 

[Okabe Rintarou]

It is,basically those waveguides can deform the incoming radar waves and reduce their energy,ultimately gets absorbed along the skin

So waveguides are like pipes for the radar waves, and when implemented along with structures like a Jaumann absorber lead to absorption of the waves as they are passing through the waveguides?

 

[fire starter]

So waveguides are like pipes for the radar waves, and when implemented along with structures like a Jaumann absorber lead to absorption of the waves as they are passing through the waveguides?

Wave guides are used in FSS.

 

[SavageKing456]

So waveguides are like pipes for the radar waves, and when implemented along with structures like a Jaumann absorber lead to absorption of the waves as they are passing through the waveguides?

Crudely you can say

 

[fire starter]

Made-in-India stealth fighter project set to take off in 2022.

amca: Made-in-India stealth fighter project set to take off in 2022 | India News - Times of India

India News: NEW DELHI: India is now finally getting set to launch its most ambitious indigenous military aviation project to build a fifth-generation fighter or t.

www.google.com

 

[SavageKing456]

Made-in-India stealth fighter project set to take off in 2022.

amca: Made-in-India stealth fighter project set to take off in 2022 | India News - Times of India

India News: NEW DELHI: India is now finally getting set to launch its most ambitious indigenous military aviation project to build a fifth-generation fighter or t.

www.google.com

ADA has been seeking funds from 2019 I wonder why it is taking them too long delay delay delay in funding

 

[Okabe Rintarou]

ADA has been seeking funds from 2019 I wonder why it is taking them too long delay delay delay in funding

Leaked picture of ADA team answering Finance Ministry babus' question of why smol plane Tejas can't be "enlarged" and another pipe be inserted in it for the second engine and why they want funds meant for MSP to be diverted to fund AMCA.

 

[Kalkioftoday]

Leaked picture of ADA team answering Finance Ministry babus' question of why smol plane Tejas can't be "enlarged" and another pipe be inserted in it for the second engine and why they want funds meant for MSP to be diverted to fund AMCA.

We should've followed the American model here. Give the funds directly to the brunch of military. Let them fund their needs. Let them own the program. MOD should act as third party observer. This will solve a lot of problems

 

[Covfefe]

We should've followed the American model here. Give the funds directly to the brunch of military. Let them fund their needs. Let them own the program. MOD should act as third party observer. This will solve a lot of problems

Lol no. Military babus are way more dangerous than civilian babus. You would've seen those funds depleting in programs like FGFA and India would have got some assembly line jobs to make the politicians happy (at a premium ofcourse). People curse babus much and rightfully so, but often forget the fact that it is military babudom that causes the most damage, not the civilian one. Our leadership severely lacks in strategic planning and program management- some proper management training must be mandated for middle management echelons. Corruption is altogether a different issue in which again armed forces aren't much behind their civvies counterparts.

 

[Okabe Rintarou]

Lol no. Military babus are way more dangerous than civilian babus. You would've seen those funds depleting in programs like FGFA and India would have got some assembly line jobs to make the politicians happy (at a premium ofcourse). People curse babus much and rightfully so, but often forget the fact that it is military babudom that causes the most damage, not the civilian one. Our leadership severely lacks in strategic planning and program management- some proper management training must be mandated for middle management echelons. Corruption is altogether a different issue in which again armed forces aren't much behind their civvies counterparts.

That model seems to work for the Navy though.

 

[Covfefe]

That model seems to work for the Navy though.

Looking at IAF and IA's approach, it seems like a recipe for colossal corruption and disaster.
IN has done a decent job in keeping CSL and MDL afloat but again they won't be close to being competitive in an open market.

 

[fire starter]

Leaked picture of ADA team answering Finance Ministry babus' question of why smol plane Tejas can't be "enlarged" and another pipe be inserted in it for the second engine and why they want funds meant for MSP to be diverted to fund AMCA.

How the hell can u question pure and pious farmers don't u realise your small mistake can block many Highways.

I AM sending the SS of your comment to our supreme leader tikait so that he can demand your arrest.

 

[skdking]

Lol no. Military babus are way more dangerous than civilian babus. You would've seen those funds depleting in programs like FGFA and India would have got some assembly line jobs to make the politicians happy (at a premium ofcourse). People curse babus much and rightfully so, but often forget the fact that it is military babudom that causes the most damage, not the civilian one. Our leadership severely lacks in strategic planning and program management- some proper management training must be mandated for middle management echelons. Corruption is altogether a different issue in which again armed forces aren't much behind their civvies counterparts.

I agree 100%. The bureaucracy in Olive green is more rent-seeking and harmful than the civil bureaucracy.

IN and IAF are slightly better, but not much better.

And, they are never asked tough questions by Politicians. Perhaps because of unfamiliarity with a Holy Cow.

CDS has one unintended benefit. He knows somewhat better. Thus, he can ask uncomfortable questions. That is why IAF hates the CDS concept.

 

[Dark Sorrow]

NEW DELHI: India is now finally getting set to launch its most ambitious indigenous military aviation project to build a fifth-generation fighter or the advanced medium combat aircraft (AMCA) with advanced stealth features as well as 'supercruise' capabilities.
The case for the full-scale engineering development of the twin-engine AMCA prototypes has been finalized and will be sent for approval to the Cabinet Committee on Security (CCS) by early next year after consultations between the defence and finance ministries, top sources said on Sunday.
Production of fifth-generation jets is an extremely complex and expensive affair, with the American F/A-22 Raptor and F-35 Lightning-II Joint Strike Fighter, the Chinese Chengdu J-20 and Russian Sukhoi-57 being the only operational ones around the globe at present.
Experts, however, contend the J-20 and Sukhoi-57 fighters are still somewhat short of being true-blue fifth-generation fighters. The 36 Rafales being inducted by IAF, under the Rs 59,000 crore deal inked with France in September 2016, are 4.5-generation jets.
As of now, the development cost of the 25-tonne AMCA is estimated to be around Rs 15,000 crore, with the first prototype’s “rollout” by 2025-26 and production of the Mark-1 jets slated to begin in 2030-31 under the “aggressive timelines” set by DRDO and its Aeronautical Development Agency (ADA). A more realistic timeframe for the AMCA induction to kick-off, however, would be around 2035.
The AMCA project is critical for IAF, which is grappling with just 30-32 fighter squadrons and will not reach its sanctioned strength of 42 squadrons even with “planned inductions” over the next 10-15 years.
The detailed AMCA designing, which was sanctioned in December 2018, meets IAF’s “preliminary staff qualitative requirements” but the requisite powerful engine remains a major problem.
Consequently, the first two squadrons of AMCA Mark-1 will have the existing General Electric-414 afterburning turbofan engine in the 98 Kilonewton thrust class, while the next five mark-2 squadrons will have a more powerful 110 Kilonewton engine. "With the foreign collaborator to be selected by early-2022, the new engine will be concurrently developed indigenously,” said a source.
The advanced stealth features in the swing-role AMCA will range from “serpentine air-intake” and an internal bay for smart weapons to radar absorbing materials and conformal antenna.
The fighter will also have the supercruise capability to achieve supersonic cruise speeds without the use of afterburners as well as data fusion and multi-sensor integration with AESA (active electronically scanned array) radars.
In the interim, IAF’s planned inductions include 73 Tejas Mark-1A fighters and 10 trainers, which will be delivered in the 2024-2028 timeframe under the Rs 46,898 crore deal inked with Hindustan Aeronautics in February this year.
Then there is the long-pending “Make in India” project for 114 new 4.5-generation fighters with “some fifth-generation capabilities” for over Rs 1.25 lakh crore, which has seven foreign contenders and is likely to get the initial “acceptance of necessity” next year.
There are some discussions also underway about whether India should leapfrog from the Tejas Mark-1A directly to the AMCA. “IAF will certainly require additional Tejas jets after the next 83 are delivered, whether they are enhanced variants of Mark-1A or Mark-2. Many technologies proven in their manufacture will be scaled up for AMCA,” said a source.

AMCA Fighter Jet: Made-in-India stealth fighter project set to take off in 2022 | India News - Times of India

India News: India is now finally getting set to launch its most ambitious indigenous military aviation project to build a fifth-generation fighter or the advanced

timesofindia.indiatimes.com