THE SPACECRAFT
 
          The spacecraft was an enlargement of the familiar Mercury
capsule--5.8m (19 ft) long, 3m (10 ft) in diameter, and about 3810 kilograms
(8400 pounds) in weight.
Engineering changes simplified maintenance and made it more maneuverable for
the pilots. The Titan II rocket, more powerful than the Redstone, placed the
larger spacecraft into orbit.
          Sometimes referred to as Gemini-Titan for the craft and its launch
vehicle, each flight was designated by a Roman numeral. Only the first capsule
was nicknamed; Command Pilot Virgil Grissom called it the MOLLY BROWN in
reference to his Mercury spacecraft that sank.