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I have searched the forum and the internet but can't find the answer to my question. Would the 10% increase in fuel efficiency from BLI function at supersonic speeds?

The 10% increase is the number I read from Bauhaus Luftfahrt and their explanation of propulsive fuselage. Which is also close to the number given by NASA. These numbers were for typical commercial subsonic aircraft and all I want to know is if BLI would also work for aircraft travelling supersonic?

Thanks, RB

Paranoidone
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  • Only the outer part of the boundary layer is supersonic, so the subsonic results mostly also apply at supersonic speed. – Peter Kämpf Jun 16 '21 at 23:09
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    Thank you Peter. You are a great contributor to this forum. – Paranoidone Jun 17 '21 at 02:50
  • boundary layer ingestion was used in the air inlet duct system of the SR-71- not to reduce drag but to improve uniformity of flow across the duct cross-section. and agree with your assessment of Peter's status! – niels nielsen Jun 18 '21 at 17:43

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