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Old 22 December 2007, 09:39 AM
Troberg Troberg is offline
Join Date: 04 November 2005
Location: Borlänge, Sweden
Posts: 11,580

Nitrogen is used in aircraft tires because it does not expand or contract to the same extent as common air.
Aircraft tires also work under much tougher conditions. They are slammed down while cold with 50 tons above them into a runway at several hundred km/h. Nowadays, they are spun up to speed before landing, but on older aircraft, they had to perform this feat from standstill. It's no wonder they have a need for more advanced solutions.
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