how much fuel does a 747 use on take off?

Answer 1

A plane like a Boeing 747 uses approximately 1 gallon of fuel (about 4 liters) every second. Over the course of a 10-hour flight, it might burn 36,000 gallons (150,000 liters). According to Boeing's Web site, the 747 burns approximately 5 gallons of fuel per mile (12 liters per kilometer).

The amount of thrust required for the actual takeoff is dependant upon the load of the aircraft, the general weather conditions (including the current air temperature and the barometer readings), the current runway conditions, the altitude you are taking off from, the runway length, and much more.

There is an on-board computer on the 747 that helps to compute the Takeoff N1 thrust required. It has several settings to it, including a set of settings to help reduce the amount of fuel and thrust required for the takeoff by between 5% and 15% of the actual requirements. Pilots are told to ignore these energy savings settings if the weather is bad, there is heavy windshear, the runways are wet, and much more.

Your best bet may be to contact Boeing directly and ask them for the exact information you are looking for. They have so much extremely detailed technical information, they could probably provide you with a 100 page book just answering this one question.

http://www.boeing.com/contactus.html

Answer 2

A plane like a Boeing 747 uses approximately 1 gallon of fuel (about 4 liters) every second. Over the course of a 10-hour flight, it might burn 36,000 gallons (150,000 liters). According to Boeing's Web site, the 747 burns approximately 5 gallons of fuel per mile (12 liters per kilometer).

Answer 3

From the time that the aircraft goes full trhotle until the time the wheels leave the ground a Boeing 747 burns about 1,000 lbs of fuel.

Answer 4

I depends on many factors. As mentioned above things such as Elevation, weight and other characteristics have to be taken into account. But as a rule of thumb, a 747 would burn roughly around 10,000kg of fuel from take off to the top of climb altitute. Of course this will vary, but it is a rough estimation

Answer 5

To give an accurate answer I would need the following information:-

What model of 747 i.e 100, 400, SP?

What is the all up weight of the aircraft at the point of lift off?

What make of engines are fitted and what is the thrust rating etc etc.

So unless you know these and additional parameters like wind, height above sea level of the departing airfield, temperature, humidity blar blar blar, you will not get an accurate answer!

Answer 6

for a 4056 engines the fuel flow per engine is around 6-7 tons/hr during take off (TOGA power). On climb thrust it will reduce to around 5 tons/hr.

Answer 7

allot