Thrust vectoring is the ability of a vehicle like an aircraft or rocket to manipulate the direction of thrust from its engine in a direction other than parallel to the vehicle's longitudinal axis. It was originally intended to provide upward vertical thrust for VTOL or STOL capabilities. In combat, thrust vectoring allows aircraft to perform maneuvers and climb faster. There are two methods of thrust vectoring - mechanical, which physically changes the engine nozzle direction, and fluidic, which injects or removes fluid from the jet boundary layer to enable vectoring.