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Thread: Tyre tread
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Old 26th Jul 2005, 05:56
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targaman

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Join Date: May 2005
Location: Bangkok,Thailand
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You got it in one!

The amount of weight carried by that tire will dictate to a large degree, how much water will be moved.

I disagree sir! If you want to be pedantic then .........maybe as the tyre footprint is larger with increased weight but everything else I agree with.

When I went to pilot school (1963) the formula was aqua/hydro plane speed equals nine times the square root of the tyre (tire) pressure. in knots

I remember watching a movie (B4 video) of hydro/aqua planing being demonstrated in a test facility through a glass plate underneath the tyre (Tire) footprint. Very interesting.

Thus for example while racing my old classic www.targaflorioteam.org in the wet I put as much pressure in the tyre as it would safely hold (Trade secret).

If you take a normal road car tyre, regardless of tread and put say 36 psi of tyre (Tire) pressure in it will give you a hydro/aqua plane speed of 54 Kts or 62 mph or 100 kph.

Believe me it works in torrential rain.

Chok Dee
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