Gulfstream G450: Specs, Range, Cabin & History | ICCJET

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Aircraft encyclopedia · Gulfstream

Gulfstream G450: Specifications, Range and History

The Gulfstream G450 is the last version of the Gulfstream IV family. Development began in 2001 as the GIV-X; it first flew on 30 April 2003 and was approved by the FAA on 12 August 2004, with the PlaneView flight deck of the G550.

Gulfstream delivered 365 G450s over 12 years. The last was delivered on 19 January 2018, and the clean-sheet G500 replaced it.

4,350 nm
Range
12.29 m
Cabin length
1.88 m
Cabin height
2
Rolls-Royce Tay 611-8C
365
Delivered

At a glance

G450 at a glance

Class Large-cabin business jet
Best for Transatlantic and Europe to Asia trips
Passengers up to 16; 14 typical
Flight crew 2 pilots
Compare with G550

Size

Dimensions

Length 27.23 m (89 ft 4 in)
Wingspan 23.72 m (77 ft 10 in)
Height 7.67 m (25 ft 2 in)
Cabin length 12.29 m (40 ft 4 in)
Cabin width 2.24 m (7 ft 4 in)
Cabin height 1.88 m (6 ft 2 in)

Range and speed

Performance

Range 4,350 nm (8,056 km)
Maximum speed Mach 0.88
Cruise Mach 0.80 to 0.85
Ceiling 45,000 ft
Takeoff distance 1,707 m (5,600 ft)

Weights

Weights

Maximum takeoff weight 33,838 kg (74,600 lb)
Maximum landing weight 29,937 kg
Basic operating weight 19,595 kg (43,200 lb)
Maximum fuel 13,282 kg (29,281 lb)
Maximum payload 2,631 kg (5,800 lb)

Equipment

Equipment and main systems

What is installed on the G450, which other versions exist and where the same equipment flies.

Engines

On the G450
2 x Rolls-Royce Tay 611-8C with FADEC, 13,850 lbf each
Same family
Tay 611-8 engines power the Gulfstream IV and IV-SP; the Tay family also flew on the Fokker 70 and 100

Flight deck

On the G450
Gulfstream PlaneView with four 14-inch LCDs and a head-up display; Enhanced Vision System II standard

Airframe

Base
Gulfstream IV; the G450 is about 30 cm longer than the G400

The Gulfstream IV family

Gulfstream IV / IV-SP 1987 onward, the original
G300 / G400 Renamed GIV and GIV-SP versions
G350 / G450 PlaneView versions, 2004 to 2018

Equipment and weights vary by serial number and upgrades. ICCJET checks the actual configuration of each aircraft.

The cabin

The cabin is 12.29 m long, 2.24 m wide and 1.88 m high, with the oval Gulfstream windows. Typical layouts seat 14; up to 16 in a high-density layout.

History

History and production

Development started 2001, as the GIV-X
First flight 30 April 2003
FAA approval 12 August 2004
Production from October 2004
Last delivery 19 January 2018, 365 delivered
Successor G500

Routes

Three nonstop routes in range

Dubai to Singapore

AirportsDXB to SIN
Distance3,156 nm
Still-air timeabout 6.6 h

Moscow to New York

AirportsSVO to JFK
Distance4,039 nm
Still-air timeabout 8.5 h

Istanbul to Bangkok

AirportsIST to BKK
Distance4,056 nm
Still-air timeabout 8.5 h

Calculated great-circle distances and still-air times at 476 kn. Real flights depend on winds, payload, routing and fuel reserves. Check any route in the ICCJET Aircraft Route Planner.

FAQ

Gulfstream G450: questions

What is the range of the Gulfstream G450?

4,350 nm (8,056 km).

How many G450s were built?

365, delivered from 2004 to January 2018.

What engines does the G450 use?

Two Rolls-Royce Tay 611-8C turbofans with FADEC.

What replaced the G450?

The Gulfstream G500.

Is the G450 a Gulfstream IV?

Yes. It is the final development of the Gulfstream IV family, with the PlaneView flight deck.

Charter

Charter a large-cabin jet

Need the cabin before you buy one? ICCJET arranges charter of business jets, group airliners and cargo aircraft.

Istanbul

AirportsIST · SAW · ISL

Kazakhstan

AirportsALA · NQZ · CIT · GUW

International

DeparturesWorldwide on request

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Specifications are published reference figures. Individual aircraft vary by configuration and modifications. Page checked 16 October 2026.