Editing Rocket engine (section)

===Thrust vectoring===
{{Main|Thrust vectoring}}
Vehicles typically require the overall thrust to change direction over the length of the burn. A number of different ways to achieve this have been flown:

* The entire engine is mounted on a [[hinge]] or [[gimbal]] and any propellant feeds reach the engine via low pressure flexible pipes or rotary couplings.
* Just the combustion chamber and nozzle is gimballed, the pumps are fixed, and high pressure feeds attach to the engine.
* Multiple engines (often canted at slight angles) are deployed but throttled to give the overall vector that is required, giving only a very small penalty.
* High-temperature vanes protrude into the exhaust and can be tilted to deflect the jet.