A Marine with Headquarters and Headquarters Squadron monitors the fuel intake of an F/A-18 Hornet during a hot refuel at the hot-fuel pits on Marine Corps Air Station Futenma April 10. Hot-refueling is when aircraft are refueled with engines running with the intent of getting the aircraft back in the air as quickly as possible. - A Marine with Headquarters and Headquarters Squadron monitors the fuel intake of an F/A-18 Hornet during a hot refuel at the hot-fuel pits on Marine Corps Air Station Futenma April 10. Hot-refueling is when aircraft are refueled with engines running with the intent of getting the aircraft back in the air as quickly as possible.