火箭详情
基本信息
| 名称 |
Atlas V 421 |
| 全名 |
Atlas V 421 |
| 家族 |
Atlas, Atlas V |
| 型号 |
421 |
| 制造商 |
联合发射联盟 |
规格参数
| 长度 |
58.3 m |
| 直径 |
3.8 m |
| 最小级数 |
0 |
| 最大级数 |
2 |
| 起飞质量 |
433 t |
| 起飞推力 |
- kN |
| LEO运力 |
14067 kg |
| GTO运力 |
6890 kg |
| 首飞时间 |
2007-10-11 |
描述
Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with Boeing. Each Atlas V rocket uses a Russian-built RD-180 engine burning kerosene and liquid oxygen to power its first stage and an American-built RL10 engine burning liquid hydrogen and liquid oxygen to power its Centaur upper stage. The RD-180 engines are provided by RD Amross, while Aerojet Rocketdyne provides both the RL10 engines and the strap-on boosters used in some configurations. The 421 version uses a 4m wide fairing, 2 solid rocket boosters and one engine on the Centaur stage.
