Thanks DWG. I appreciate the comments. These help further things some.
Let me provide more context. After you read this DWG, could you please comment some more as to where the stage might be as to what is being talked about here? From an interview with Paul Czysz, as conducted by Tim Ventura, a long while back (prior to 2013). This is about one of the McDonnell Douglas hypersonic programs.
URL link to the main section: https://medium.com/@timventura/paul-czysz-on-hypersonic-aircraft-suborbital-spaceplanes-92ed10537ee6.
"...
No, no — we didn’t actually lose test-pilots — I was referring to the aerodynamics during training in a hypersonic flight simulator. The bottom of the aircraft in a Mach 8 to 12 scramjet is the engine. Now the way you get an engine to put out more thrust is to increase the capture area of the engine — that’s how you get the variable capture inlet area on the F-15 — you can control the thrust level potential by controlling the airflow to the engine.
So if you have a scramjet vehicle, and you want to increase the thrust of it, you have to increase its angle of attack — not by much, only by about 2 or 3 degrees. Nevertheless, as you advance the throttle, the nose comes up, and that’s very counterintuitive to a pilot, who will think that the nose coming up when you advance the throttle means that there’s something wrong.
So in the simulator, these pilots were not pulling up, but they were advancing the throttle. Again, in order to get more thrust out of a ram-compression engine you have to increase the capture area, and the way that you increase the capture area is to pull the nose up — and since the whole bottom of the aircraft is the engine, it increases its capture area.
..."
Based on this meager amount of information DWG, where do you think the simulators that are mentioned were coming in at in the vehicle's development?
