Encyclopedia Astronautica
Mercury Capsule


American manned spacecraft module. 18 launches, 1960.01.21 (Mercury LJ-1B) to 1963.05.15 (Mercury MA-9). Reentry capsule.

Crew Size: 1. Habitable Volume: 1.70 m3. Structure: 340 kg (740 lb). Heat shield: 272 kg (599 lb). Reaction Control System: 40 kg (88 lb). Recovery Equipment: 60 kg (132 lb). Navigation Equipment: 40 kg (88 lb). Telemetry Equipment: 50 kg (110 lb). Electrical Equipment: 80 kg (176 lb). Communications Systems: 20 kg (44 lb). Crew Seats and Provisions: 80 kg (176 lb). Crew: 72 kg (158 lb). Environmental Control System: 50 kg (110 lb). RCS Coarse No x Thrust: 6 x 107 N. RCS Fine No x Thrust: 6 x 5 N. RCS specific imulse: 220 sec. RCS total impulse: 30 kgf-sec. Electric System: 12.96 kWh. Electric System: 0.54 average kW.

AKA: Capsule.
Gross mass: 1,118 kg (2,464 lb).
Unfuelled mass: 1,104 kg (2,434 lb).
Height: 3.51 m (11.51 ft).
Diameter: 1.89 m (6.20 ft).

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Associated Countries
Associated Spacecraft
  • Mercury American manned spacecraft. 18 launches, 1960.01.21 (Mercury LJ-1B) to 1963.05.15 (Mercury MA-9). America's first man-in-space project. The capsule had to be as small as possible to match the orbital payload capability of America's first ICBM, the Atlas. More...

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