PPRuNe Forums - View Single Post - How to work out hydro planing speed?

9th Sep 2001, 04:40

#4 (permalink)

HighSpeed

Join Date: Mar 1999

Location: Far East

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wig wag,

for static hydroplaning speed, it is 7.7 x sqrt[tyre p (PSI)]. this happens when the tyres are NOT spinning, thus it is crucial to make a 'firm' touchdown to spin-up the tyres when landing on a wet runway.

HS