[EMAIL PROTECTED] wrote:
>I wonder if anyone has tried a hypergolic mixture at the spikes tip >to replace the need for a big power supply? Not only would it add >the energy, but also excess gas. For that matter, what about a small >upward pointing HTP rocket engine, similar to the supersonic Russian >torpedos discussed in the literature. > Wouldn't that be something though? A rocket pointing the wrong way that actually makes you go faster ;-) I can't think of any obvious reason it wouldn't work, although the injector pressure would obviously have to be well above whatever the stagnation pressure of the hypersonic airflow was, which might be quite high. An idea which sounds interesting is if the gas is injected tangentally to the spike, kinda like the way water sprinklers work- that way the spike can be kept cool by the fuel, and the size of the bubble can be modulated by throttling or adjusting the fuel mixture of the engines. Still, all this adds to the dry mass... > >Dan > >In a message dated 8/13/02 4:08:45 PM, [EMAIL PROTECTED] writes: > ><< Usually. There is a reasonable paper on the web which I read a while back: > >http://lightcraft.meche.rpi.edu/Research/publications/AIAA97-0795.pdf > >which he cowrote for NASA, where he actually investigated the hypersonic >behaviour in a windtunnel from mach 10-15. No obvious unobtainium >involved in this case (which makes a nice change). >> > >_______________________________________________ >ERPS-list mailing list >[EMAIL PROTECTED] >http://lists.erps.org/mailman/listinfo/erps-list > _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
