Why do planes use so much fuel?

Flight distance For long-haul flights, the airplane needs to carry additional fuel, leading to higher fuel consumption. Above a certain distance it becomes more fuel-efficient to make a halfway stop to refuel, despite the energy losses in descent and climb.



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When an airplane experiences less drag, it consumes less fuel. This relationship between speed and fuel consumption means that flying at a slightly slower speed can result in significant fuel savings for airlines, which in turn can lower operating costs and potentially reduce ticket prices for passengers.

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If the aircraft tried to land without dumping the fuel first, it is considered an overweight landing attempt and could place immense stress on the airframe. It could also increase the risk of fire and fuel leaking onto the tarmac.

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Commercial airliners, such as the Boeing 747 and the Airbus A380, have a range of around 8,000 to 8,500 nautical miles. This means that they can fly for up to 20 hours without refueling, allowing them to travel long distances across the globe.

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Simply add the strength of the headwind (30 mph) to your best glide speed (78 mph) and you've got the most efficient speed to fly—here, 108 mph. To determine an airplane's Carson speed, multiply its best glide speed by 1.32. This will get the best result in terms of true airspeed and fuel consumption.

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Believe it or not, an airplane's wings often contain a majority of the fuel the aircraft will use. Some planes also possess fuel tanks inside the aircraft's body; however, there are several benefits to placing fuel in the wings of an airplane.

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Airlines find that fuel dumping can actually be cheaper than not dumping in certain circumstances. But it's not something pilots do on a routine basis. We spoke with Alison Duquette, spokesperson for the Federal Aviation Administration (FAA), who assured us that it doesn't happen very often.

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Running since 1929, Hawaiian is among the oldest airlines in the world but, remarkably, it has never suffered a single fatal crash or hull loss.

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What is the longest flight in the world by distance? The longest flight in the world by distance is New York (JFK) to Singapore (SIN) on Singapore Airlines clocking in at 9,537 miles. What plane can fly the farthest in the world?

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Can planes fly on just one engine? Absolutely. That is what they are designed to do. By law, planes have to be able to fly from point A to point B, over water, on just one engine.

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