宇宙神 V 551 | 亚马逊低轨星座 (LA-04)

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 standard payload fairing sizes are 4 or 5 meters in diameter and of various lengths. Fairings sizes as large as 7.2 m in diameter and up to 32.3 m in length have been considered. The rocket is assembled in Decatur, Alabama and Harlingen, Texas.

宇宙神 V（Atlas V）是宇宙神火箭家族中的一款一次性发射系统。它此前由洛克希德·马丁运营，现由联合发射联盟（ULA，与波音的合资企业）运营。每枚宇宙神 V 火箭第一级采用俄制 RD-180 发动机，燃烧煤油与液氧；其半人马座（Centaur）上面级则采用美制 RL10 发动机，燃烧液氢与液氧。RD-180 发动机由 RD Amross 提供，Aerojet Rocketdyne 则提供 RL10 发动机及部分构型中使用的捆绑式助推器。标准整流罩直径为 4 米或 5 米，长度各异。曾考虑过直径达 7.2 米、长度达 32.3 米的整流罩。该火箭在亚拉巴马州迪凯特与得克萨斯州哈灵根组装。