Produced by Gulfstream Aerospace, the Gulfstream IV or G-IV is a high altitude, high speed private jet aircraft. It is a holder of more than 70 world records, including both eastbound and westbound around-the-world speed records. It has met the air transportation needs of corporations, governments, heads of states, private individuals and air charter companies around the world. In 1990, Gulfstream CEO Allen E. Paulson and a Gulfstream flight crew set 35 international records with the G-IV.
Design work on the G-IV began in early 1983, with the first of four production prototypes making the types first flight on September 19, 1985. The G-IV is a significantly improved and more advanced version of the Gulfstream III. The most notable improvements are the twin Rolls-Royce Tay engines which enable the aircraft to fly up to 4,350 nautical miles. Other changes include a stretched fuselage, aerodynamically and structurally improved wings, greater fuel capacity and range, increased span tailplane and an advanced avionics suite with six color CRT displays. The G-IV has a large cabin and can land on runways that are too short to accommodate commercial aircraft. It has a dispatch reliability rate of 99.66 percent, making it the most dependable in its class.
The military variant of the G-IV, designated C-20F/G/H/J Gulfstream IV in Department of Defense service, may be configured for cargo operations, passenger operations or combinations of both. 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.