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These Guys Got Inside the Fuel Tank Labyrinth of a 747 Jumbo Plane

A Boeing 747 can carry 48,445 gallons (183,380 liters) of fuel in a labyrinth of tanks so large that people can actually walk and crawl inside them. Can't believe it? Just watch.

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The team from BBC's Engineering Giants did just that while going through the D-Check of a British Airways' Jumbo airliner. One of the presenters went with one of the technicians in charge of inspecting the gas tanks for leaks—from the inside.

I chose a bad day to quit sniffing kerosene. [Thanks Jorge!]

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DISCUSSION

Seems like fuel would get trapped in all those nooks created by the support structure. I figured the tank would be skinned and smooth; so that all the fuel could be efficiently routed to the engines.