The Gulfstream GIV and GIV-SP is a significantly improved, larger, longer-range and advanced development of the earlier GII and GIII. The most significant improvement with the GIV and GIV-SP over the earlier Gulfstream models is the Rolls-Royce Tay engines, which bring significant fuel burn and noise emission improvements despite their higher thrust output than the GII and GIII Spey engines.

Other changes included a stretched fuselage, and aerodynamically and structurally improved wing with 30% fewer parts, greater fuel capacity and range, increased span tail and an advanced EFIS avionics suite with six color CRT displays.

The Gulfstream GIV-SP, large cabin Business Jet, gross takeoff weight is 1,400 pounds increase over the GIV. Like the GIV it employs a Goo¬dyear Aerospace brake-by-wire system and a Dowty fail-passive steer-by-wire system, making pilot maneuverability easier.

Up to 19 passengers and amenities include a large galley and full-sized lavatory. The stretched fuselage provides for six cabin windows per side and the restructured wing is 870 lbs. lighter while providing capacity for nearly 1,000 gallons more fuel. The range of the GIV-SP is 4,091 nm operating under NBAA IFR 4 passengers with available fuel.

The Gulfstream makes no sacrifices when it comes to cabin space, speed, range, and reliability. It meets every requirement a world traveler could have for a private jet of its novelty and quality.