The Government of Canada’s terminology and linguistic data bank.


Record 1 2002-11-13


Subject field(s)
  • Spacecraft

A single-stage to orbit (or SSTO) launcher describes an as-yet theoretical class of spacecraft designed to place a load into orbit as a self-contained vehicle without the use of multiple stages. No actual SSTO launchers have been constructed - current launches are either performed by multi-stage expendable rockets, or the Space Shuttle which is assisted by fuel tanks and solid fuel rockets that are jettisoned during the climb.

Key term(s)
  • single-stage-to-orbit launcher
  • single stage to orbit launcher
  • single stage to orbit satellite launcher


  • Engins spatiaux

L'évolution vers le lanceur monoétage devrait se faire en trois phases. D'abord un bi-étage partiellement réutilisable à ergols liquide et boosters à poudre. Ensuite, un bi-étage complètement réutilisable uniquement à ergols liquides lui succédera avant l'apparition d'un monoétage à propulsion aérobie au-delà de 2020.


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