Langley 4,372 kg LM Credit - © Mark Wade

This early open-cab Langley design used cryogenic propellants. The cryogenic design was estimated to gross 3,284 kg - to be compared with the 15,000 kg / 2 man LM design that eventually was selected.

Earliest lunar orbit rendezvous schemes involved use of one or more extremely lightweight, unpressurized lunar landers to take a single astronaut to the lunar service. The cryogenic design was estimated to gross 3,284 kg - to be compared with the 15,000 kg / 2 man design that eventually was selected. Propellant load estimated.

Crew Size: 1. Design Life: 1 days. Length: 2.60 m (8.50 ft). Maximum Diameter: 3.50 m (11.40 ft). Mass: 3,284 kg (7,239 lb). Payload: 150 kg (330 lb). Main Engine Propellants: Lox/LH2. Main Engine Propellants: 2,200 kg (4,800 lb). Main Engine Isp: 444 sec.