
Heavy Fuel Engine

Resolve Shipboard Logistics Dilemmas
Improve Engine Performance, Endurance
ScanEagle was the first unmanned aircraft in its class to be configured with a heavy fuel engine. This resolved a logistics problem for the U.S. Navy and other customers with limited access to gas while improving engine performance and endurance.
The ScanEagle team logs the longest continuous flight by flying a ScanEagle with a heavy fuel engine for 28 hours and 44 minutes, completing the flight with a four-hour fuel reserve. (November 2006)
Electronic fuel injection is successfully flight-tested on the heavy fuel engine-equipped ScanEagle, providing overall improvements—especially in extreme temperatures and at high altitudes, including mountainous terrain. (January 2010)










