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Gulfstream G450
The G450 is the improved Gulfstream IV, certified as the GIV-X, with two Rolls-Royce Tay 611-8C turbofans at the tail and a T-tail. The EASA data sheet gives a maximum takeoff weight of 33,838 kg at the highest approved weight and a maximum altitude of 45,000 feet. No dimensions, range or seat count come from the sources read, so they are left empty. GLF4 is the type code for the whole Gulfstream IV family, and this page covers the G450 only. Production ended in January 2018.
- Engines
- Two Rolls-Royce Tay 611-8C turbofans at the tail
- Max takeoff weight
- 74,600 lb (33,838 kg)

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Specifications
| Ceiling | 45,000 ft (13,700 m) |
|---|---|
| Status | Retired in 2018 |
| Type codes | ICAO GLF4 |
History
Gulfstream delivered its final G450 in January 2018, ending a production run of about 12 years and more than 360 aircraft. The G500 took its place in the Gulfstream line. Gulfstream said it would keep supporting G450 owners with product support and sustaining engineering, and the aircraft still fly with private owners and charter operators.