Размножение стелсов.

What's interesting about these is that it shows a concept Northrop originated, proved in the wind tunnel, but which hasn't shown up, as far as I know, in Real World designs. I refer to the use of dorsal inlets with a careful tailoring of the airframe in front of them to ensure good airflow even at high AOA. To the best of my knowledge, no company besides Northrop ever looked intently at this concept.

Northrop did a lot of studying on dorsal inlets, including tunnel time, and did find a way to make aft-plaeced dorsal inlets quite efficient even at high angles of attack. I remember seeing the papers in the AIAA Journal of Aeronautics back in the late 70s/early 80s; then all references disappeared. It does make you wonder.

Oh, and as to dorsal inlets, they can be made to work at high-AOA, but it takes some very careful tailoring of the forebody and LERX to set up the proper conditions. Northrop demonstrated this in testing back in the late 1970s that was written up in the AIAA Journal of Aircraft. Interestingly enough, after a few of these papers had appeared, none further did; this was at the time when Low Observables was becoming recognized as an area of design criteria in its own right. I rather imagine that the implications of this technique sank in and further testing was classified. I do know that one of Northrop's proposed YF-23 configurations took advantage of this to mount dorsal inlets over a double-delta wing.

I don't have a copy of it and I seriously doubt there's one floating around as only the few folk who worked on that concept kept the illustrations; I just happened to work with two of them on another classified program.