Gas Turbine Engine Starter

An item designed to accelerate a gas turbine engine from rest to starter cutoff speed by means of a combustion gas driven turbine and reduction gear assembly constructed to be mounted on the engine starter drive. The combustion gas is generated from ignited liquid fuel and air in the combustion chamber or from a solid propellant cartridge attached to the combustion chamber of the starter. May have provision for energizing the turbine by low pressure air from engine bleed or ground equipment air supply.