Skip to main content
  1. News
  2. Science & Space

NASA, French cast doubt on SpaceX reusable rocket project

See also

The drive by SpaceX to make the first stage of its Falcon 9 launch vehicle reusable has attracted the attention of both the media and the commercial space world. It recently tested a first stage which “soft landed” successfully in the Atlantic Ocean. However both NASA and the French space agency CNES has cast doubt that this kind of reusability could ever be made practical, according to a Monday story in Aviation Week.

SpaceX is basing its plan on the idea that its Merlin 1D engines have a lifecycle of 40, thus a Falcon 9 first stage could in theory be reused that number of times. The margins built into the rocket allow for the extra weight involved in using landing legs and the extra fuel that will be needed to execute a powered descent. These margins will still allow them to launch substantial payloads to low Earth orbit and a geo transfer orbit.

However, citing their own experience in trying to reuse engines, both NASA and the CNES have suggested that both the technical challenges and the economics mitigate against SpaceX being able to reuse all or part of their rockets. NASA found that it was not worth trying to reuse the space shuttle main engines after every flight without extensive refurbishment. The CNES studied reusing its Ariane 5 solid rocket boosters by making them liquid fueled and reusable but soon scrapped the idea. Safety issues surrounding flyback boosters were also cites as a show stopper.

Still, SpaceX appears to be upbeat that it can make at least the first stage core of the Falcon reusable. While the Falcon 9 is already the cheapest ride around, undercutting even the Chinese Long March, reusability, in theory, would make it even more so. That would make SpaceX the dominate space launch company on the planet and would further its CEO Elon Musk’s ambitions to colonize Mars.

Advertisement

News

  • Sterling loses Clippers
    Donald Sterling loses big in court with no option for an appeal
    Video
    Video
  • Russia violating arms treaty?
    Russia is testing a long-range missile which violates an INF arms treaty
    World News
  • Ebola outbreak
    The Ebola epidemic in West Africa has proven to be quite difficult to contain
    Health News
  • Virginia same-sex marriage
    The ban on same-sex marriage is ruled unconstitutional in Virginia
    US News
  • Abigail Hernandez suspect
    A suspect is in police custody for the disappearance of Abigail Hernandez
    Crime
  • Bachelorette finale
    'The Bachelorette' is in the books, which lucky guy got Andi's final rose?
    TV