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Old Engines, New App

机译:旧引擎,新应用

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摘要

The future of NASA's human spaceflight program shares a building here with the presses where the U.S. government prints passports: 16 large rocket engines bagged for protection from dust and dirt in an air conditioned warehouse. Fourteen of the reusable RS-25 Space Shuttle Main Engines stored in the Aerojet Rocketdyne (AJR) engine assembly area have flown in space before, and all of them will fly once more on the core stage of NASA's heavy-lift Space Launch System (SLS). A 17th engine-No. 0528-is serving as a ground-test workhorse on one of the massive stands built originally for the Saturn V propulsion systems. As the supply of surplus shuttle engines is launched on the SLS and thrown away four at a time, beginning as early as 2018, AJR will use the facilities to test expendable upgrades. The work is progressing under a $1.2 billion contract between the company and NASA for the first six expendable RS-25s, with a goal of reducing the cost of individual engines by 33%.
机译:NASA的人类太空计划的未来与美国政府在这里印刷护照的印刷机共用一栋建筑物:16台大型火箭发动机装在袋中,用于保护空调仓库中的灰尘。存放在Aerojet Rocketdyne(AJR)发动机组装区中的14台可重复使用的RS-25航天飞机主机已经在太空中飞行过,它们都将在NASA重型太空发射系统(SLS)的核心阶段再次飞行)。第17引擎编号0528-在最初为土星V推进系统建造的大型看台之一上用作地面测试的主力。随着剩余穿梭发动机的供应在SLS上启动并一次被丢弃四架(最早于2018年开始),AJR将使用这些设施来测试消耗性的升级。根据公司与NASA签订的价值12亿美元的合同,这项工作正在进行中,涉及前6架RS-25消耗品,目标是将单个发动机的成本降低33%。

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