Exclusive image of a Diverterless supersonic inlet (DSI) configuration been tested on computer Aerodynamic simulation for India’s 5th Generation AMCA fighter jet. has been informed at Aero India 2017 that DSI intake was considered at the design stage but was overlooked for current intake design adapted on AMCA Scale model displayed at Aero India 2017.

A diverterless supersonic inlet (DSI) is a type of jet engine air intake used by some modern combat aircraft to control air flow into their engines. It consists of a “bump” and a forward-swept inlet cowl, which work together to divert boundary layer airflow away from the aircraft’s engine.

This eliminates the need for a splitter plate while compressing the air to slow it down from supersonic to subsonic speeds. The DSI can be used to replace conventional methods of controlling supersonic and boundary-layer airflow.

AMCA design has been frozen and Scale model is seen with diverter plates on an F-22ish type inlet. When asked if DSI configuration was considered for LCA-Tejas MK1 or MK2 aircraft, we were told they were not and reasons behind why DSI on AMCA was overlooked due to no frontal stealth benefits to the aircraft and also due to other factors not disclosed.

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