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Jet engines operate exactly like rocket engines. The atmosphere provides oxygen for the reaction which generates the rapid expansion of the fuel/air mixture. But the engine doesn't need air to "push" against. Rocket engines supply their own oxidizer, rather than using air's oxygen content.
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Rocket engines provide essentially the highest specific powers and high specific thrusts of any engine used for spacecraft propulsion. Most rocket engines are internal combustion heat engines (although non-combusting forms exist).
Four types of rocket engines can be used for different and relevant applications: Launch Vehicles: Rocket engines used in launch vehicles are designed to provide high thrust and momentum to lift the vehicle off the ground and into space.
Mar 4, 2021 · The Rocket Lab Rutherford engines, designed for small orbital rockets like the Electron, use pumps powered by lithium-ion batteries. More powerful engines like the Merlin, RS-25, or F-1 engines use more complex combustion cycles that siphon off some of the combustion’s energy to power the pumps.
Apr 2, 2023 · Discover the basic principles behind rocket engines and the types of engines used in spaceflight. Learn about liquid-fueled and solid-fueled engines, and explore the advantages and disadvantages of hybrid rocket engines.
May 25, 2024 · The SpaceX Falcon 9's Merlin engines use rocket-grade kerosene (RP-1) fuel with liquid oxygen as the oxidizer. NASA's Space Launch System is based on liquid hydrogen fuel and liquid...
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May 25, 2022 · Like Earthly engines, rocket engines operate using combustion. Since all forms of combustion need oxygen, rockets carry an oxidizer like liquid oxygen up to space with them. That means they don't...
