The Long March rocket was named before it was born. Because my country’s aviation industry started late at that time and the journey was long, the astronauts named the rocket Long March 1. The final victory of the Long March also heralded victory in the future. In addition, space travel is inherently a very long distance. The name of the Long March Rocket symbolizes multiple meanings.
1. The Long March 1 series is a three-stage rocket mainly used to launch small payloads in low-Earth orbit. The rocket has a total length of 29.86 meters, a maximum diameter of 2.25 meters, a take-off weight of 81.6 tons, and a take-off thrust of 112 tons. It can send a 300-kilogram satellite into a low-Earth orbit 440 kilometers high.
2. The Long March 2 series is a two-stage rocket with a total length of 31.17 meters, a maximum diameter of 3.35 meters, and a take-off weight of 190 tons. It can send 1.8-ton satellites hundreds of kilometers above the ground. Oval orbit.
3. The Long March 3 series is a three-stage rocket. The first and second stages are developed on the basis of the "Long March 2C" rocket. Its third stage uses low-temperature and high-energy liquid hydrogen. oxygen engine.
4. The Long March 4 series, including "Storm 1", "Long March 4", "Long March 4A", "Long March 4B" and other rockets.
5. The Long March 5 series carrier rockets, also known as "big rockets", are disposable large-scale cryogenic liquid bundled carriers developed in 2006 to meet the needs of further aerospace development and bridge the gap between China and foreign countries. Rocket. For the first time, it adopts a 5-meter-diameter rocket body structure, with a total fueling capacity of 780 tons. There are 10 engines producing 1,078 tons of thrust during take-off. It has a carrying capacity of 25 tons in low-Earth orbit and 14 tons in geosynchronous transfer orbit. .
6. The Long March 6 launch vehicle is a three-stage liquid launch vehicle. The power system uses a liquid oxygen kerosene engine. It is non-toxic, non-polluting, and has short launch preparation time. It is mainly used to meet the launch requirements of micro satellites. .
7. The Long March 7 launch vehicle is a new generation of medium-sized launch vehicle newly developed for the manned space project to launch cargo spacecraft. It can also be used to launch other spacecrafts such as artificial satellites. The rocket uses new technologies such as a liquid oxygen kerosene engine. The total length of the rocket body is 53.1 meters, the core diameter is 3.35 meters, and four boosters with a diameter of 2.25 meters are bundled. The take-off mass is about 597 tons, and the low-Earth orbit carrying capacity is 13.5 tons.