Gulfstream G450

The large-cabin business jet built for intercontinental range and reliability.

Overview

Gulfstream United States ICAO: GLF4 2004–2018 Active $43 million (2018)

The Gulfstream G450 entered service in the mid-2000s as a refined development of the earlier GIV-SP platform. Designed to offer long-range capability with modern avionics, it became a core model in Gulfstream’s large-cabin lineup. The aircraft balanced transoceanic performance with proven systems architecture.

Live Fleet Activity (GLF4)

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Specifications

Units
Engine
2 × Rolls Royce Tay Mk 611-8C
Engine type
Turbofan
Thrust
2 × 13,850 lbf · 62 kN
Avionics
PlaneView Cockpit , Honeywell Primus Epic avionics
Wing tips
Blended tips
Seats
16
Crew
—
Cabin width
7 ft 4 in  ·  2.24 m
Cabin height
6 ft 2 in  ·  1.88 m
Cabin length
44 ft 11 in  ·  13.70 m
Exterior length
89 ft 4 in  ·  27.23 m
Tail height
25 ft 2 in  ·  7.67 m
Fuselage diameter
7 ft 10 in  ·  2.40 m
Wing span
77 ft 9 in  ·  23.70 m
Baggage volume
170 ft³  ·  4.8 m³
Gross weight
—
Empty weight
—
Max takeoff weight
74,500 lb  ·  33,800 kg
Max landing weight
66,000 lb  ·  29,900 kg
Max payload
6,000 lb  ·  2,700 kg
Fuel capacity
4,400 gal · 16,700 L · 13,300 kg (Jet A)
Max cruise speed
505 kt  ·  581 mph  ·  935 km/h
Maximum speed
—
Cruise speed
—
Approach speed
139 kt  ·  160 mph  ·  257 km/h
Range
4,350 nm  ·  5,010 mi  ·  8,060 km
Fuel burn
0.98 nm/gal  ·  0.48 km/L
Ceiling
45,000 ft  ·  13,700 m
Rate of climb
4,000 ft/min  ·  20 m/s
Takeoff distance
5,600 ft  ·  1,710 m
Landing distance
3,250 ft  ·  990 m
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Gulstream IV G450 ‘N232ZK’

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Operational Context

Gulfstream G450 — long-range large-cabin business jet

The G450 first flew in 2003 and entered service in 2004. Although derived from the GIV family, it incorporated a redesigned flight deck and aerodynamic refinements. Gulfstream positioned the aircraft as a dependable intercontinental platform capable of linking major business centers nonstop.

Two Rolls-Royce Tay turbofan engines, each producing approximately 13,850 pounds of thrust (61.6 kN), power the aircraft. Typical cruise speed is around Mach 0.80, with high-speed cruise near Mach 0.88. Maximum takeoff weight exceeds 74,000 pounds (33,566 kg), and range approaches 4,350 nautical miles (8,056 km).

The G450 became widely adopted by corporate flight departments and government operators. Its combination of cabin comfort and proven reliability supported long production runs until the mid-2010s. The model represents one of Gulfstream’s most successful transitional large-cabin jets.