June 16, 1969
P. 75 (5 Pages)
Hypersonic cruise vehicle conceived by United Aircraft would cruise at Mach 8 at 100,000 ft., with a range exceeding 5,000 mi. Reusable hydrogen oxygen rockets— their exits are visible in tail in center photo of model—would boost the vehicle to speed where dual-mode ramjet-scramjet engines on underside of fuselage could take over. Retractable turbojet engines would be deployed for landings.