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What is the least fuel-efficient plane?
On the other side, the least efficient was British Airways at 27 pax-km/L (3.7 L/100 km [64 mpg‑US] per passenger), using fuel-inefficient Boeing 747-400s with a low density of 0.75 seat/m2 due to a high 25\% premium seating, in spite of a high 82\% load factor.
Which is more fuel-efficient Boeing or Airbus?
As we see, an Airbus A380 burns twice as much fuel per hour as a Boeing 787-9. A head-to-head comparison between the two aircraft can give airlines millions of dollars in savings just by choosing a 787-9 over the A380 (though an A380 has almost double the number of seats compared to the 787).
Is A380 fuel-efficient?
A fuel capacity of nearly 82,000 gallons, a fuel consumption rate of 10 g/nm and space for up to 853 passengers makes the A380 more fuel efficient per passenger than an average economy car.
How much fuel does a Cessna 177 burn per hour?
Specifications
| 1968 Cessna 177 (Cardinal) | 1976 Cessna 177B (Cardinal) | |
|---|---|---|
| Min. Octane Fuel | 80 | 100 |
| Avg. Fuel Burn at 75\% power in standard conditions per hour | Unknown | 10 gallons |
| Weights and Capacities: | ||
| Takeoff/Landing Weight Normal Category | 2,350 lbs. | 2,500 lbs. |
What is the most energy efficient aircraft?
There is no single answer because as with all desirable characteristics in an airplane we always must trade one attribute for another. If fuel were really the only driving factor in finding the most efficient aircraft, powered parachutes and motorgliders would win hands down.
What is the fuel efficiency of a piston airplane?
If you increase the power and fuel flow to 132 pph and the true airspeed climbs to 180 knots, the specific range is down to 1.36. The airspeed increased by about 22 percent, but the fuel efficiency decreased by about 30 percent. As you can see, the fuel efficiency of a piston airplane is largely in the hands of its pilot.
How is fuel efficiency measured in aviation?
The aviation industry uses a metric called specific range to measure fuel efficiency. Specific range is the number of miles — normally a fraction except for piston singles — that an airplane flies through the air per pound of fuel consumed.
Why do airplanes use less fuel when they fly?
As the airplane climbs and the air thins, the turbine produces less power and thus consumes less fuel, but the drag of the thinning air on the airplane decreases faster than the power from the engine drops, so the airplane speeds up and the fuel flow goes down.