Jet propulsion involves ejecting a jet of fluid [1] and does not require combustion of that fluid. [1]: https://en.wikipedia.org/wiki/Jet_propulsion https://en

Jet propulsion involves ejecting a jet of fluid [1] and does not require combustion of that fluid. [1]: https://en.wikipedia.org/wiki/Jet_propulsion https://en.wikipedia.org/wiki/Jet_propulsion