Powerplant

A Powerplant (/paʊərplænt/) is the component of an aircraft or plen that propels it through air or space. However, some aircraft (namely gliders) do not have an actual powerplant onboard, in such case the aircraft that tows a glider to altitude would be considered the powerplant.

Examples
Examples of powerplants include:
 * Turbofans (Rolls-Royce RB.211, General Electric CF34)
 * Turbojets (Pratt & Whitney J58, Tumansky RD-9)
 * Turboprops (Rolls-Royce Dart, Pratt & Whitney Canada PT6)
 * Turboshafts (Rolls-Royce T406, Klimov TV-3)
 * Radial Piston Engines (Wright R-3350, Shvetsov ASh-62)
 * Inline Piston Engines (Rolls-Royce Merlin, Junkers Jumo 205)
 * Rotary Piston Engines (Le Rhône 9J, Gnome Monosoupape)
 * Rocket Engines (RD-107, Walter HWK 109-509)