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Gemini 11 (officially Gemini XI) [2] was the ninth crewed spaceflight mission of NASA's Project Gemini, which flew from September 12 to 15, 1966.It was the 17th crewed American flight and the 25th spaceflight to that time (includes X-15 flights over 100 kilometers (62 mi; 54 nmi)).
The flight established a record for the length of an electrodynamic tether in space at that time, 958 m (3,143 ft). [63] The tether was a teflon-coated, stranded tin-copper wire of 0.85 mm (0.033 in) diameter and it was deployed from a spool-type reel located on the forward subpayload. [citation needed]
Gemini 4 (officially Gemini IV) [3] was the second crewed spaceflight in NASA's Project Gemini, occurring in June 1965. It was the tenth crewed American spaceflight (including two X-15 flights at altitudes exceeding 100 kilometers (62 mi; 54 nmi)).
Gemini 12 (officially Gemini XII) [3] was a 1966 crewed spaceflight in NASA's Project Gemini. It was the 10th and final crewed Gemini flight ( Gemini 1 and Gemini 2 were uncrewed missions), the 18th crewed American spaceflight, and the 26th spaceflight of all time, including X-15 flights over 100 kilometers (54 nmi).
Project Gemini (IPA: / ˈ dʒ ɛ m ɪ n i /) was the second United States human spaceflight program to fly. Conducted after the first American crewed space program, Project Mercury, while the Apollo program was still in early development, Gemini was conceived in 1961 and concluded in 1966.
Gemini 9A space-flown Fliteline Medallion. The Gemini 9 patch is in the shape of a shield and shows the Gemini spacecraft docked to the Agena. There is a spacewalking astronaut, with his tether forming the shape of a number 9. Although the Gemini 9 mission was changed to use the ATDA, the patch was not changed.
Gemini 8 space-flown Fliteline Medallion The Gemini 8 spacecraft is displayed at the Armstrong Air & Space Museum in Wapakoneta, Ohio. The mission patch shows the whole spectrum of objectives that were hoped to have been accomplished on Gemini 8.
Gemini 10 space-flown Fliteline Medallion. The patch is simple in design but highly symbolic. The main feature is a large X with a Gemini and Agena orbiting around it. The two stars have a variety of meanings: the two rendezvous attempts, Castor and Pollux in Gemini or the two crew members. This is one of the few crew patches without the crew's ...