4

No, they don't. The slanted intake is slanted because the top part produces a compression shock wave that hits the lower intake lip so all of the compressed air is ingested and nothing is wasted. In order to do this reliably up to Mach 2.5 (where the Mach cone angle is 73.8° from the vertical), the whole intake needs to be slanted by those 73.8° (actually a ...


1

Interestingly, a high G maneuver may have lower AOA than a stall maneuver. The MiG 21 spike inlet is 1950s vintage, also seen on the SR-71, used to solve the problem of slowing supersonic inlet air to subsonic flow that was then fed into the turbojet. The MiG 21 was designed more for hit and run and is not as versatile as the F-15 Eagle, which suceeded it ...


Only top voted, non community-wiki answers of a minimum length are eligible