January 6, 2015
Overview including differentiating features from other aircraft in its category
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 Goodyear Aerospace brake-by-wire system and a Dowty fail-passive steer-by-wire system, making pilot maneuverability easier.
Up to 19 passeng...