The Gulfstream GIIB has been completed in a variety of configurations, but typical executive cabins accommodate 10 to 14 passengers in combinations of club seating, side divan, and individual passenger seats. The aircraft is commonly outfitted with a large working galley, entertainment center, and full-sized aft lavatory. The Gulfstream GIIB is powered by a pair of Rolls-Royce Spey Mk511-8 turbofans rated at 11,400 lbs. of thrust each. Inspection interval on the engines is 8,000 hours. The modified aircraft, designated the Gulfstream IIB, offers an increase in range of about 900 nm. The Gulfstream IIB was granted certification by the FAA in September 1981. Approximately 42 aircraft were retrofitted to the GIIB configuration.
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The G IIB has a range of 3,055 nautical miles. Type in your city or airport identifier for a visual representation of the NBAA IFR Range (NM) for this aircraft.