Re: No. of wheels and runways

Date:         29 Nov 97 15:39:59 
From: (McLELLAN Alexander, DED/1)
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C. Marin Faure wrote:
>The primary reason for the multiple-wheel trucks on the 777, the four main
>gearsets on the 747, and the extra center gear on the A340 are to safely
>distribute the weight of the planes on the world's existing taxiways and
>runways without damaging the tarmac or concrete.

Dunno if it's relevant, but for road vehicles, the damage done to the
road surface is proportional to the 6th power of the axle weight. So a
truck is worth a million cars!

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