Structure of Gemini spacecraft

Gemini spacecraft is similar in shape to Mercury spacecraft, basically in the shape of a cone bell, with a total length of 5.7m, a maximum diameter of 3m at the bottom and a weight of about 3.0 ~ 3.9t. ..

Return capsule: It is equipped with 2 astronauts, with a total length of 3.4m and a maximum diameter of 2.3m The space for the astronauts is 2.55m3, with a total weight of 1982kg, of which 2 astronauts weigh 144kg and the seat support weighs 426kg. Pure oxygen is used in the cabin with a pressure of 340mPa.

Equipment cabin: length 1.4m, maximum diameter 3.05m, weight 1278kg, in which the weight of environmental control life support system 1 17kg.

The spacecraft structure adopts the principle of cabin layout, and all components of each subsystem are placed in a compact cabin, which is convenient for inspection and assembly and replacement in case of failure. Gemini spacecraft from No.5 to 12 all use fuel cells, which are simple and compact in structure, resistant to impact and vibration, small in size, light in weight and high in specific power. The spacecraft also uses the ejection seat as an emergency life-saving means, which can provide astronauts with a life-saving means not only in the launch stage, but also in the landing stage.