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| The Gulfstream IV is a much improved, larger, improved range and advanced development of the earlier II and III. The most significant improvement with the GIV over the earlier Gulfstream models are the Rolls-Royce Tay turbofans, which bring lower fuel burn and noise emission improvements despite their higher thrust output. Other changes include a stretched fuselage and aerodynamically and structurally improved wing with 30% fewer parts, greater fuel capacity and range, increased span tailplane and an advanced EFIS avionics suite with six colour CRT displays. The improved Gulfstream IVSP (Special Performance), with higher payload and landing weights and improved payload range performance, replaced the IV from September 1992. Both the Gulfstream IV and IVSP have set a number of records. A Gulfstream IV flew west around the world over 36,800km (19,890nm) in June 1987 in a time of 45hr 25min, setting 22 class world records, another flew east around the world in February 1988, setting 11 class world records. |
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| Seating (normal) |
14 |
Max Takeoff (lbs) |
73,200 |
| Seating (maximum) |
- |
Certified Ceiling (ft) |
45,000 |
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| Engines |
2 RR Tay Mk 611-8 |
To (Sealevel, ISA Temp) (ft) |
5,280 |
| Output lbs ea. Flat Rating |
13,850 |
Landing Distance (ft) |
3,361 |
| Maximum Mach No. |
0.88 |
Max Range (fuel) (nm) |
4,141 |
| High Speed Cruise (Kts) |
480 |
Max Range (payload) (nm) |
3,685 |
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| Flight Time 300nm |
0 + 45 |
Flight Time 1000nm |
2 + 17 |
| Flight Time 600nm |
1 + 25 |
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| External |
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Internal |
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| Length (ft) |
88.30 |
Length (ft) |
45.10 |
| Height (ft) |
24.80 |
Height (ft) |
6.10 |
| Span (ft) |
77.80 |
Width: Max floor (ft) |
7.30 |
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