So, just thinking about this, this weekend, During the late 50's early 60's the airforce were doing there X-plane series of aircraft, pushing past Mach1, etc. the X-15 first flew in 1959, and its pilots were awarded Astronuat wings because they went so high and fast.. Enter Kennedy and Nasa.. and some part the Russians and Sputnik.. We then went to ground sitting rockets that pushed up small capsules to space.. and exept for the shuttle.. thats all we've done.. So.. my question/quandry is... if we let the airforce continue on the Planes to Space route.. would we today have ground to orbit space planes? be it a parasite craft that is dropped from a mother plane, or a 2 stage.. but the US wouldn't have capsules.. we'd fly to and from space.. Thoughts??