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Thread: exploding tyres
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Old 1st Aug 2000, 18:29
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Zeke
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Keendog,

Have a look at http://www.pprune.org/ubb/NonCGI/For...ML/001074.html

Tyres do not have the greatest stress on spin up, it is during the braking cycle and taxi when the aircraft is producing little lift. At spin up little weight (comparatively) is on the wheels.

Many smaller aircraft like citations have gravel kits that include a nose wheel spin up that is operated off the windscreen bleed air. This is designed to minimize stone ingestion into the engines for gravel strip ops, not for tyre life requirements.

Most aircraft tyres are oversized allowing for increased weight on later variants without the need to make the hole to put them away in any bigger later on. In preliminary design a factor of 25% is not unusual.

Aircraft tyres are a complicated design and work well in the environment they are designed for. Certain EU countries have funny ideas of how to connect these tyres to the aircraft which may cause problems. A tribute to this is the EMB series of a/c which have problems with fractures in the gear components …. they have a heavy design influence from certain EU members, but the French do know how to design some things really well.

Regards


Z