How much does a 747 weigh on takeoff?

The 747's maximum takeoff weight ranges from 735,000 pounds (333 t) for the -100 to 970,000 pounds (440 t) for the -8. Its range has increased from 5,300 nautical miles (9,800 km; 6,100 mi) on the -100 to 8,000 nautical miles (15,000 km; 9,200 mi) on the -8I.



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For some airlines, the A380 offered too much capacity, while for Emirates, the airline can't get enough of the plane. Unfortunately for Emirates (and us passengers), the days of the Airbus A380 are numbered. Airbus stopped A380 production in 2021, as there weren't sufficient orders to keep production going.

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Generally, a typical runway length for a fully loaded Boeing 747-400, one of the most common variants, is around 10,000 to 12,000 feet (3,048 to 3,658 meters) for takeoff.

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The top speed of the Boeing 747 itself is about 570 mph, and this flight maxed out at 825 mph. The difference between “ground speed” (zero bonus) and “air speed” (200+ mph bonus) is also why this speed, while technically faster than the speed of sound, didn't ever go supersonic.

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The four engines of the Boeing 747 Jumbo Jet burn approximately 10 to 11 tonnes of fuel an hour when in the cruise. This equates to roughly 1 gallon (approximately 4 litres) of fuel every second. It can carry a maximum of 238,604 liters of fuel and it has a range of about 7,790 nautical miles.

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The 747-400 has eight fuel tanks, with a combined capacity of 57,164 gallons of Jet-A fuel. This amount weighs in excess of 380,000 pounds. (Pilots normally discuss fuel in terms of weight rather than volume.)

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For example, with a glide ratio of 15:1, a Boeing 747-200 can glide for 150 kilometres (93 mi; 81 nmi) from a cruising altitude of 10,000 metres (33,000 ft).

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Different airplanes have different maximum altitudes, depending on their construction. For example, the Airbus A320 has a maximum altitude of 39,000 feet (11,900m) and the Boeing 747 45,000 feet (13,700m).

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With the Boeing 747 program coming to an end, the 777X will become Boeing's flagship big plane. Over at Airbus, production of the A380 has also ended. However, the A380 is a newer plane than the 747, and still has a fair bit more flying to do.

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The arrival of the A380 in 2007 was poorly timed. The price of jet fuel had begun to creep up, and by 2007 was floating at around $4 a gallon. This made airlines shy away from the expensive to operate four engine jets of the 80s and 90s, and to look instead to fuel efficiency as a major deciding factor.

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