Gemini 11 (officially Gemini XI) was a 1966 manned spaceflight in NASA's Gemini program. It was the 9th manned Gemini flight, the 17th manned American flight and the 25th spaceflight of all time (includes X-15 flights over 100 km).
Launch date: September 12, 1966, 14:42:26 UTC
Landing: September 15, 1966, 13:59:35 UTC
Measured 3 inches (7.62 cm) across.