How much fuel does a 747 burn per hour

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How Much Does It Cost Per Hour To Fly A 747?

how much fuel does a 747 burn per hour

Over the course of a hour flight, it might burn 36, gallons (, Not bad when you consider that the is flying at miles per hour ( km/h)!.

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Fuel economy in aircraft is a measure of how much fuel an aircraft, or a fleet of aircraft of mixed types, needs to operate in relation to a service provided i. It can be expressed in several ways, for example by the liters of fuel consumed per passenger per kilometer. A powered aircraft counters its weight through aerodynamic lift and counters its aerodynamic drag with thrust. The aircraft's maximum range is determined by the level of efficiency with which thrust can be applied to overcome the aerodynamic drag. A subfield of fluid dynamics , aerodynamics studies the physics of a body moving through the air.

One of the interesting things about learning about thrust for a rocket, is that we can use the same types of formulas for airplanes. We can also look at why airplanes fly at the altitudes that they do, and how the wind affects the fuel used. How to actually do this? Well, we need two equations that we have talked about on different posts: 1 the equation for thrust ; and 2 the equation for the drag force. When a plane is traveling between two places at a constant altitude, we can ignore the forces in the vertical direction, since the gravity of Earth is balanced by the lift from the wings. In the horizontal direction, the forces are also balanced since we are traveling at a constant velocity , namely the thrust of the airplane is balanced by the drag force from the airplane moving through the air. So, what is the drag force on an airplane?

How much does it cost per hour to fly a ? At a macro level, aircraft operating costs include both flight and ground costs associated with the operation of an aircraft, such as fuel, crew salaries and training, landing fees, ground handling, parking, gate leases, and maintenance, just to name some of the big expenses. Every airline has economists whose sole preoccupation is trying to optimize and balance all of this stuff against available routes, likely demand, fleet mix etc. There is a tremendous amount of variability in any such figures. More engines usually means more fuel burn per hour; fuel prices fluctuate on a daily basis; newer engines are more fuel-efficient than older engines, etc. Also, different authorities will occasionally come to blows on such subjects as to whether to base hourly costs on a typical flight profile for the type of aircraft in question lots of takeoffs and landings, or one takeoff followed by twelve hours of droning along followed by a descent, approach and landing.

Question: Why is the lower front engine shroud on a Boeing slightly flattened? Presumably it is for ground clearance, but even without the flattening, it looks as though there should be ample clearance. When high bypass ratio fan jet engines were installed on the , there was concern about foreign objects being ingested. Therefore, the engineers provided as much ground clearance as possible. Q: How much fuel do planes typically take off with? I recently flew from Portland, Ore. I thought the we were on is capable of flying to New York or Boston from Portland.

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