Initiated or propelled into action.

Started or initiated with enthusiasm.

Ballistic missile deployed from aircraft.

Missile deployed from aircraft, self-propelled.

The launched roller coaster is a type of roller coaster that initiates a ride with high amounts of acceleration via one or a series of linear induction motors, linear synchronous motors, catapults, tires, chains, or other mechanisms employing hydraulic or pneumatic power, along a launch track.