Langley 4,372 kg LM Credit - © Mark Wade

This early open-cab single-crew Langley lunar lander design used storable propellants, resulting in an all-up mass of 4,372 kg.

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. Others using cryogenic propellants were as low as 1,460 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: 4,372 kg (9,638 lb). Payload: 150 kg (330 lb). Main Engine Propellants: N2O4/UDMH. Main Engine Propellants: 3,500 kg (7,700 lb). Main Engine Isp: 311 sec.