The Long March 2F (Chinese: 长征二号F火箭 Changzheng 2F), also known as the CZ-2F, LM-2F and Shenjian, is a Chinese orbital carrier rocket, part of the Long March rocket family. Designed to launch crewed Shenzhou spacecraft, the Long March 2F is a human-rated two-stage version of the Long March 2E rocket, which in turn was based on the Long March 2C launch vehicle. It is launched from complex SLS at the Jiuquan Satellite Launch Centre.