The G-IV is an upgraded evolution of the G-III with a 54-inch cabin stretch and six cabin windows. The aircraft is fitted with two Rolls-Royce Tay MK 610-8 engines which are more powerful and fuel-efficient than the Spey MK 511-8 model that the G-II and G-III were powered by. The Gulfstream G-IV also became the first business jet to have an entire glass cockpit with an advanced EFIS avionics suite and six-color CRT displays.
As of April 2023, 94% of the Gulfstream G-IV ownership comes from the pre-owned market, the other 6% from new. 12.4% of those are currently for sale, with the majority under an exclusive broker agreement (79%). For those on the market, the average time on the market is 10.4 months. Over the past 12 months, the Gulfstream G-IV has averaged 2 full retail transactions per month.
Design work on the G-IV began in early 1983, with the first of four production prototypes making first flight on September 19, 1985. FAA certification was awarded on April 22, 1987.
The G-IV began operational service with serial number 1000 in 1987 and was upgraded to the special purpose G-IV-SP version at serial number 1214 in 1993. A total of 196 Gulfstream G-IV aircraft have been produced.
There are currently 153 Gulfstream G-IV aircraft in operation worldwide. The majority of those (149) are wholly owned with 4 in shared ownership and none in fractional ownership. 7.8% are currently leased. North America has the largest percentage of wholly owned Gulfstream G-IV aircraft (86%) followed by Asia (7%).
The Gulfstream G-IV is powered by Two Rolls-Royce Mk 610-8 engines each offering 13,850 lbs of thrust. The Gulfstream G-IV uses 520 gallons per hour (GPH). The range of the G-IV is 4,200 nm operating under NBAA IFR 4 passengers with available fuel.
The cabin volume for the Gulfstream G-IV is 1,658 cubic feet. Typical configuration features 14 passengers and 2 crew seats.
|Maximum Cruise Speed:||476 kts||
|Takeoff distance:||5,450 ft (1,661 m)||
(SL, ISA, MTOW)
|Landing distance:||2,650 ft (808 m)||
(SL, ISA, MLW)
|Maximum operating altitude:||45,000 ft (13,716 m)|
Noise Level (EPNdB)
|A.||Maximum ramp weight:||73,600 lb (33,385 kg)|
|B.||Maximum takeoff weight:||73,200 lb (33,204 kg)|
|C.||Maximum landing weight:||58,500 lb (26,536 kg)|
|D.||Maximum zero fuel weight:||46,500 lb (21,092 kg)|
|E.||Standard basic operating weight:||43,500 lb (19,732 kg)|
Honeywell SPZ-8000 avionics suite, Collins radios FMS and dual Honeywell laser inertial reference systems, six-screen color EFIS
Of the 122 Gulfstream G-IV in operation in the US 95% have ADS-B OUT installed.
Gulfstream G-II, G-IIB, and G-III
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