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Speaker 1: Welcome to brain Stuff from how Stuff Works dot com

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Speaker 1: where smart Happens. Hi, I'm Marshall Brain with today's question,

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Speaker 1: how much fuel does an international airplane use for a trip?

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Speaker 1: A plane like a Boeing seven forty seven uses approximately

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Speaker 1: one gallon of fuel every second. Over the course of

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Speaker 1: a ten hour flight, it might burn thirty six thousand

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Speaker 1: gallons of fuel. That sounds like a lot. According to

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Speaker 1: Boeing's website, the seven forty seven burns approximately five gallons

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Speaker 1: of fuel per mile. This sounds like tremendously poor miles

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Speaker 1: per gallon, but consider that a seven forty seven can

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Speaker 1: carry as many as five hundred sixty eight people. Let's

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Speaker 1: call it five hundred people to use around number. A

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Speaker 1: seven forty seven is transporting five hundred people one mile

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Speaker 1: using five gallons of fuel. That means the plan it

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Speaker 1: is burning about point oh one gallons per person per mile.

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Speaker 1: In other words, the plane is getting a hundred miles

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Speaker 1: per gallon per person. The typical car gets about twenty

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Speaker 1: five miles per gallon, So the seven forty seven is

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Speaker 1: actually much better than a car carrying one person and

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Speaker 1: compares favorably even if there are four people in the car,

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Speaker 1: not bad when you consider that the seven forty seven

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Speaker 1: is flying at about five fifty miles per hour. Be

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