>
> Sorry, I wandered off on a tangent. I associated your mention of
> aquaplaning with what I was taught in the mid-70s about aircraft
> aquaplaning. It's probably cobblers, but they taught us that an
> aircraft might aquaplane down a (ground)speed of 9vP, where P is the
> tyre pressure. It's just one of those things that has stuck in my
> head ...
>
Units man !
P is in kpa, psi ?
ground speed km/h, mph, kn ?
...Wayne
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