Edward Gomersall of NASA's Ames Research Center produced a conservative design for an SSTO in 1970. His vehicle was based on realistic structural technology and used a derivative of the J-2S engine.

Through use of strap-on solids it could be used to launch manned lunar spacecraft, 100 tonne space stations, or passengers with the use of a winged spaceplane upper stage. The paper, seen as a threat to NASA's push for a winged shuttle, was suppressed and Gomersall assigned to other duties.

Manufacturer: NASA Ames.