India AMCA Program

Bhartiya Sainik

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HAL shys away from rapid prototyping so we don't see them putting out frames faster. HAL has the capability to put out a flying prototype without the necessary sub system but that's does not fit into HAL Philosophy of manufacturing
1:1 mockup, engineering model, static model, exhibit model, etc, whatever people wan't to call it, this exhibit model is made with wood &/or fiber. There are hardly any joints, rivets, real panels, etc. The static model is not for development into flight model.
As per DRDO & PSU info on various forums + AMCA bulkhead metal cutting happened in 2022 + as per these ADA guys it'll take 4 more years to roll out the prototype = no full structure available yet.
So beware of Youtubers, journalists saying something semantically wrong like "in THEORY... FLIGHT with THIS Aero India model". ⚠️🚨❌
Flight is practical, not theory. Makers reveal a flyable prototype only at the manufacturing facility with runway obviously, but Yelahanka is just a simple airbase.
 
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Bhartiya Sainik

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A collage of AMCA's CAD 2D front view projections from various artists, in different resolutions, some resized.
If anybody has more 2D front views, diagram, sketch, etc, please share.

1740829227514.jpeg
 

Bhartiya Sainik

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Continuing the chain of posts for weapons in AMCA's IWB which is officially quoted 4.2m X 2.2m,
After observing the designs of all BVR-AAMs made globally, and intention of F-35 & J-35 to increase their IWB capacity to 6 AAMs, I had shown by diagrams that only 4 big-fin Astr-1/2 AAMs can fit in IWB but,
6 staggered Astr-2 short-fin AAMs (like AIM-120-D in F-22),
or 6 modified Astr-3 SFDR,
or 8 folding-fin Astr-2 AAMs can fit in (like Chinese PL-15).

I took the CAD of Astr-2 big-fin by artist "Akela freedom" & edited in Paint to match short-fin version made by artist "Kuntal Biswas" which is also identical to AIM-120-D. So the forward fixed fin has been shortened & shifted forward & rear fin leading edge more swept back, that's all, simple quick edit.

View attachment 73595

Now we can see the comparison more clear & precise, 4 & 6 big-fin AAMs vs 6 short-fin AAMs in the outine of official dimension of IWB. Unfortunately an updated CAD is not released yet by any artist or DoD.

View attachment 73596

I did this few weeks back but I waited for Aero-India, hoping they would officially increase the IWB capacity & showcase, but didn't happen. But this is not an up-hill task & can be done easily till IOC jet.

View attachment 73597

There is no separator wall in the IWB. 1 door panel slightly overlaps on the panel of other side door, means both doors have to open full to drop any weapon, exposing full IWB.
I hope this gets corrected in IOC jet.

So far we have seen multiple CADs & static models with slight differences.
Neither ADA nor the 3D artists release basic schematic diagrams, cross sections, configurations, etc. The ones available so far are low resolution & inadequate.

1742018351342.jpeg


It is difficult to confirm how the inducted jet will look like & its capabilities.
So taking the most convincing CAD front view & superimposing the IWB dimension of 2.2m width & 0.75m depth, along with BVR-AAMs from TEDBF CAD, it seems 6x Astr-2 short-fin version with 178mm body diameter would fit in IWB easily with or w/o staggering.
SWB is also possible.
With 1.5 ton IWB capacity, 6x BVR-AAMs + 2 CCMs = 6x154 + 2x88 = 1,100 Kg, 1.1/(12+6.5+1.1)=5.6% of STOW.
Wet T/STOW ratio = 2x98 KN / 9.8 / (12+6.5+1.1) = 1.02
With 50% fuel used & firing 4 BVR-AAMs, with 2 CCMs & 2 BVR-AAMs left, wet TWR = 2x98 KN / 9.8 / {12+3.25+(4x154 + 2x88)/1000} = 1.24

1742018304409.png
 

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