since AIR is not compressible at subsonic speeds, RAM Air rocketry is probably out except for those HPR rockets that can attain and maintain supersonic speeds. On the other hand, air-augmentation of model rockets might be feasible. The Augie and Augie II were air-augmented rockets and they date from the 60's....
you would have to get to mach 1.7 and stay there for a while to see any ram air effects. Maybe a 2 stager with a very high thrust to get you up to speed fast and then a long burning sustainer to keep you at speed.....I've previously designed a booster just to test electronics - Small & Simple. With the right H motor, I can get 1.7MACH (simmed) which is enough to light this bad boy. I wonder if I could launch under "experimental"?
very interesting. I didn't know thatIt is actually possible to get a start on a ramjet at speeds as low as about 100 knots, but it will not develop any significant thrust until speeds of .5 Mach or so.
Several ramjets were tested on prop aircraft and early subsonic jets.
very interesting. I didn't know that
Hey tab have any references you can point me to? Not pics but reportsPic of a P-51D with wingtip ramjets.
Pic of a P-51D with wingtip ramjets.
Moet people do not know this, but in general, there is more aerodynamic force pushing the wing forward while in flight than there is pushing to the rear from drag effects. Think of the wing as a watermelon seed, being squeezed forward by “fingers”, which are the effect of the air as the flow rejoins behind the wing.Think about the loadings on the wings as a result of the ramjet thrust.. and how the wings were never designed to have loads of that type.
Really interesting, thanks for posting.
Hey tab have any references you can point me to? Not pics but reports
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