The Long March II F carrier rocket (referred to as Chang Er F for short, or "Shenjian" for short, or LM-2F for short) is a carrier rocket developed by China Academy of Launch Vehicle Technology. On the basis of the Long March II bundled launch vehicle, it aims at improving reliability and ensuring safety according to the requirements of launching manned spacecraft.

The development of the Long March II F rocket began in 1992, and was first launched in199165438+10/9, successfully sending China's first experimental spacecraft "Shenzhou I" into space. Shenzhou series spacecraft were successfully launched for many times, and were broadcast live by CCTV, so it became the "star" rocket in China Long March series launch vehicles.

The rocket consists of four liquid boosters, a core first-stage rocket, a core second-stage rocket, a fairing and an escape tower (excluding the launching space station), with a total length of 58.34 meters, which is the longest rocket among all launch vehicles in China, with a safety factor of 0.97. For the first time, the rocket adopts the "three vertical" test launch mode of vertical assembly, vertical test and vertical transportation.

Shenzhou 5 manned spacecraft was launched by the Long March II F carrier rocket at 9: 00 on June 6, 2003, sending astronaut Yang Liwei into space. This successful launch marks that China has become the third country capable of sending a man into space alone after the former Soviet Union (now inherited by Russia) and the United States.