The C-20 Gulfstream is the military designation of the commercial Gulfstream bizjets used by the US military forces. The C-20D Gulfstream III used for world-wide airlift of senior leadership and dignitaries. The C-20G is the Gulfstream IV used for long range, medium airlift logistics support for Fleet Battle Groups.
The C-20D Gulfstream III is an all-weather, long-range, high speed aircraft powered by two Rolls-Royce Spey turbofan engines with thrust reversers. The aircraft has an executive compartment with accommodations for five passengers, and a staff compartment with accommodations for eight passengers. C-20D aircraft are operated by Fleet Logistics Support Wing Detachment at Naval Air Facility, Andrews Air Force Base, Washington, D.C.
The C-20G Gulfstream IV is an upgraded and updated version powered by two Rolls-Royce Tay engines. The aircraft may be configured for cargo operations, passenger operations or combinations of the two. With passengers seats removed, it may be modified to the following configurations: three pallets/no passengers, two pallets/eight passengers, and one pallet/fourteen passengers. With a full complement of seats installed, the aircraft is capable of accommodating up to twenty-six passengers and a crew of four. A hydraulically-operated cargo door is installed on the starboard side of the aircraft, and a ball roller cargo floor is capable of accommodating palletized cargo. C-20G aircraft are operated Fleet Logistics Support Squadron Four Eight (VR-48) and Marine Air Support Detachment (MASD) at Naval Air Facility, Andrews Air Force Base, Washington, DC and at Fleet Logistics Support Wing Detachment, Marine Corps Base, Kaneohe Bay, Hawaii.