The Arvico ground power unit modeI 4-90STD-D, is an extremely precise power source of 400 hertz, 115/200 VAC, three phase electrical power. The units are used to provide power to commercial and military aircraft while loading/unloading, or during servicing operations. The units will provide power characteristics at the aircraft receptacle which meet or exceed MIL-STD-704 requirements for Category B aircraft. The units, as an option can also supply 28 VDC for those aircraft requiring DC for starting. The units are totally self-contained needing no outside sources of power or fuel. Victory Ground Support Equipment has many used ground power units for sale or rent including the Arvico 4-90STD-D. If you are looking for a used or reconditioned gpu for sale, please contact us today.