Emergency Power for the F-16 Aircraft

The emergency power unit (EPU) for the General Dynamics F-16 “Fighting Falcon” aircraft provides electrical and hydraulic power in the event of main engine generator or hydraulic pump failure or an engine-out condition. The unit is powered by main engine bleed air, or by the decomposition products of H-70 fuel (a hydrazine-water mixture), or a combination of both. This paper describes the emergency power unit and discusses the use of H-70 on the flight line.