Von Braun Cargo Ship

American manned Mars orbiter. Study 1952.

Using the same basic systems as the Passenger Ship, the Cargo Ships would substitute a 200 metric ton Landing Boat for the surface expedition and 195 metric tons of other supplies (consumables, spares, atmospheric and surface probes. The Cargo Ships would be left behind in Mars orbit and perform just two major maneuvers: Trans-Mars Injection (3860 m/s) and Mars Orbit Insertion (2200 m/s).

Structure: 6,300 kg (13,800 lb). Reaction Control System: 1,000 kg (2,200 lb). Navigation Equipment: 1,500 kg (3,300 lb). Electrical Equipment: 1,000 kg (2,200 lb). Communications Systems: 500 kg (1,100 lb). RCS Fine No x Thrust: Flywheels. Spacecraft delta v: 6,200 m/s (20,300 ft/sec).