标题: Why Is Helium Used in Rockets? [打印本页] 作者: choi 时间: 10-10-2024 12:43 标题: Why Is Helium Used in Rockets? 本帖最后由 choi 于 10-16-2024 12:22 编辑
Nivedita Bhattacharjee, Explainer-What Is Helium and Why Is It Used in Rockets? Reuters, Sept 7, 2024 https://www.usnews.com/news/worl ... -it-used-in-rockets
("Europe's new Ariane 6 rocket ditched the helium of its predecessor Ariane 5 for a novel pressurization system that converts a small portion of its primary liquid oxygen and hydrogen propellants to gas, which then pressurizes those fluids for the rocket engine")