The Hobart Jet-Ex 5D is designed to produce and deliver 28.5 volt DC, 600 A, power to a parked aircraft. It is also designed for starting any fixed-wing aircraft or helicopter that is equipped with an external 28.5 VDC power receptacle. The Jetex 5D has a Cummins 4B4.5T engine and is trailer-mounted for easy maneuverability. If you are looking for a reconditioned used aircraft ground power unit for sale or for rent, please contact Victory Ground Support Equipment today. We have many used gpu’s for sale that have been reconditioned and load tested for immediate delivery.