protótipo militar

With The Ability to Operate in Low Orbit, Reenter at Hypersonic Speeds Above Mach 20, Fly for Up to 40 Hours Combining Orbital and Atmospheric Phases, and Land Like an Airplane After Being Launched by a Titan Rocket, the Boeing X-20 Dyna-Soar Was the Military Prototype That Almost Initiated Orbital Warfare in the 1960s