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ScienceNet - Engineering / Technology / Engineering Materials - Aviation
 

Question No.  15485 :
What is the fuel capacity of a 747 jet aircraft and what is its range fully fuelled? Also, How much energy is released in a single nautical mile of travel of a 747 aircraft?

For Boeing 747-400, the maximum fuel capacity (with optional tail fuel) is 216,840 litres. Other data are as follows:

Boeing 747-400Boeing 747-300Boeing 747-200
Takeoff weight395,000 kg378,000 kg352,000 kg
Range12,200 km10,500 km9,500 km
Seats421400387

At cruising altitude, each engine consumes about 3000 litres of fuel per hour, and in return it produces 6 tons of thrust at airspeed of 900 kilometres per hour. Force times speed equals power; in metric units we are talking about 60,000 newtons times 250 metres per second, or 15 megawatts (20,000 horsepower). The fuel consumption then computes at 0.15 litres per horsepower per hour. Your car, which needs about 20 horsepower at a speed of 100 kilometres per hour and uses about 7 litres of fuel per hour at that speed, consumes about 0.3 litres per horsepower per hour.

Question Asked By:

Name: Phedra Young
Age Group: 13 to 20
Occupation Type: Student
Education Level: Under Graduate

 
 

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