Big Gemini
Spacecraft
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Big Gemini was proposed to NASA by McDonnell Douglas in August 1969 as an advanced version of the Gemini spacecraft system. It was intended to provide large-capacity, all-purpose access to space, including missions that ultimately used Apollo or... Wikipedia
Crew capacity: 9 to 12
Diameter: 14.00 feet (4.27 m)
Payload capacity: 5,500 pounds (2,500 kg)
Volume: 660 cubic feet (19 m3)