Midsize Business Jets
Gulfstream G800
ICAO: GA8C
Overview
The Nextant 604XT is a remanufactured version of the Bombardier Challenger 604. Announced in the 2010s, it aimed to modernize existing airframes with updated systems. The program focused on avionics and interior upgrades.
Live Fleet Activity (604XT)
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Specifications
Units
- Engine
- 2 × General Electric CF34-3B
- Engine type
- Turbofan
- Thrust
- 2 × 9,220 lbf · 41 kN
- Avionics
- Rockwell Collins Pro Line Fusion
- Wing tips
- Canted winglets
- Seats
- 11
- Crew
- —
- Cabin width
- 8 ft 2 in · 2.49 m
- Cabin height
- 5 ft 11 in · 1.80 m
- Cabin length
- 28 ft 3 in · 8.60 m
- Exterior length
- 68 ft 3 in · 20.80 m
- Tail height
- 20 ft 7 in · 6.27 m
- Fuselage diameter
- 8 ft 6 in · 2.60 m
- Wing span
- 64 ft 3 in · 19.58 m
- Baggage volume
- 113 ft³ · 3.2 m³
- Gross weight
- —
- Empty weight
- —
- Max takeoff weight
- 48,200 lb · 21,900 kg
- Max landing weight
- 38,000 lb · 17,200 kg
- Max payload
- 4,800 lb · 2,200 kg
- Fuel capacity
- 3,300 gal · 12,500 L · 10,000 kg (Jet A)
- Max cruise speed
- 488 kt · 562 mph · 904 km/h
- Maximum speed
- —
- Cruise speed
- —
- Approach speed
- 96 kt · 110 mph · 178 km/h
- Range
- 4,524 nm · 5,210 mi · 8,380 km
- Fuel burn
- —
- Ceiling
- 45,000 ft · 13,700 m
- Rate of climb
- 4,345 ft/min · 22 m/s
- Takeoff distance
- 5,650 ft · 1,720 m
- Landing distance
- 3,850 ft · 1,170 m
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Live fleet activity details
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Operational Context
Nextant 604XT — remanufactured large-cabin business jet
The 604XT program targeted existing Challenger 604 aircraft for refurbishment and modernization. Upgrades included new avionics and cabin enhancements while retaining the original airframe. The aircraft preserved the swept wing and twin-engine configuration of the Challenger series.
Powered by two General Electric CF34 turbofan engines producing approximately 8,700 pounds of thrust (38.7 kN) each, the 604XT cruises at around Mach 0.82, approximately 470 knots (870 km/h). Maximum takeoff weight exceeds 48,000 pounds (21,772 kg). The cabin accommodates multiple seating zones.
The 604XT offered an alternative to purchasing new large-cabin jets. The program highlighted the value of extending service life through modernization. Production remained limited to conversion projects.
Sources and references used for research and fact-checking.