The Gulfstream G280, a high-performance super-midsize business jet, burns approximately 1,800 pounds (820 kg) of fuel per hour when flying at specific cruise conditions. This figure is based on each of its two engines consuming 900 lb (410 kg) of fuel per hour.
G280 Fuel Consumption Details
The fuel burn rate of an aircraft like the G280 is highly dependent on various factors, including altitude, speed, weight, and atmospheric conditions. The cited fuel burn of 1,800 lb (820 kg) per hour is observed under precise flight parameters.
Key Operating Conditions for this Fuel Burn Rate:
- Altitude: 41,000 feet (12,000 meters)
- Speed: Mach 0.82 (approximately 467 knots or 865 km/h)
These conditions represent a typical high-speed cruise profile for the G280, optimizing efficiency and speed for long-range travel.
Understanding G280's Efficiency
The G280's design incorporates advanced aerodynamics, including a new airfoil and wing design, which contributes to its overall efficiency. This sophisticated wing, a significant improvement over its predecessor, the G200 wing, allows for higher cruise speeds. The G280's design cruise speed for its new airfoil is Mach 0.80, a step up from the G200's Mach 0.75. This allows the G280 to maintain excellent fuel efficiency even at impressive speeds and altitudes.
Fuel Burn Summary for G280 at Specific Cruise:
| Metric | Per Engine | Total (Two Engines) |
|---|---|---|
| Fuel Burn (Pounds) | 900 lb/hour | 1,800 lb/hour |
| Fuel Burn (Kilograms) | 410 kg/hour | 820 kg/hour |
| Altitude | N/A | 41,000 ft (12,000 m) |
| Speed | N/A | Mach 0.82 (467 kn / 865 km/h) |
Factors Affecting Aircraft Fuel Consumption
While the provided figure offers a specific benchmark, actual fuel burn can vary. Several factors influence an aircraft's fuel consumption during a flight:
- Aircraft Weight: Heavier aircraft require more thrust, leading to higher fuel consumption. This includes the weight of passengers, cargo, and the fuel itself.
- Weather Conditions: Headwinds increase fuel burn as the aircraft has to work harder to maintain ground speed. Tailwinds, conversely, can reduce fuel consumption.
- Flight Profile: Takeoff and climb phases typically consume significantly more fuel than cruise. Descent and landing phases use very little fuel.
- Engine Health and Maintenance: Well-maintained engines operate more efficiently.
- Air Traffic Control (ATC) Directives: Deviations from optimal flight paths due to ATC instructions can lead to increased fuel usage.
For more detailed specifications and information about the aircraft, you can refer to resources like the Gulfstream G280 Wikipedia page.
