MHAFB fire department's Type 4 engine.
A Type 4 Engine currently on loan from the Idaho Bureau of Land Management, Boise district, is parked inside Fire Station One July 3, 2012, at Mountain Home Air Force Base, Idaho. This type of engine uses low pressure and low volumes of water in order to contain and eliminate blazes unique to the local area. (U.S. Air Force photo/Senior Airman Benjamin Sutton)