SOURCE: RAUNAK KUNDE / NEWS BEAT / IDRW.ORG
Dr Girish S Deodhare, Director General of the Aeronautical Development Agency (ADA) recently classified Twin Engine Deck Based Fighter (TEDBF), a canard delta wing, twin-engine, carrier-based, multirole combat aircraft currently under development for the Indian Navy as a “5th generation minus” fighter and it seems it will feature some of the characters of the Stealth fighter jets too even though it’s not a 5th gen fighter.
idrw.org has been told that TEDBF will feature Serpentine-shaped ducts along with Diverterless supersonic inlet (DSI), a feature that will be first seen on the 5th gen AMCA fighter jets to conceal the engine compressor face from radar waves.
Serpentine-shaped ducts do not provide a direct line of sight to the compressor blades, thus hiding the engine from incoming radar waves, which help in lowering the frontal radar cross-section (RCS) and infrared signature. TEDBF will also feature serrated patterns for the construction of the trailing edges of the wings and canards for further frontal RCS reduction and will use a material that is similar to one that is developed for the AMCA program.
S-duct intake are also known to generate 4-5% less drag than those with a straight-through intake but the biggest con of the Serpentine-shaped ducts will be its overhaul cost of production which will make it more expensive than traditional intake.
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