HFE pour « Heavy Fuel Engine »
Elbit Systems was awarded a four-year contract worth $200m by the Swiss Federal Department of Defense, Civil Protection and Sport (DDPS) to supply the Hermes 900 HFE UAS for use by the Swiss Air Force in November 2015.
The unmanned aircraft is currently in the assembly stage and scheduled to be delivered in 2019.
https://elbitsystems.com/landing/starliner/