Does a tyre change its CIRCUMFERENCE when underinflated?
On 29/06/18 19:16, Jeff wrote:
"Andy Burns" wrote in message
...
Jeff wrote:
Andy Burns wrote:
I can drop the pressure back to 31 and measure the drop of the axle
Yes please.
centre of wheel vertically to ground, 320mm vs 315mm
Interesting, and a lot smaller than I would have thought.
So now you have blown up the proof that it must be the
circumference that is changing, because that change is
less than the 0.4% you saw the ABS wheel rotation rate
change by. You bugger :-(
No, in fact he has proved it can't be the radius change because 5 mm
in 320mm is *more* than 0.4%. It's around 1.5%.
Ergo it has to be the circumference change due to elasticity
Denial is fascinating to watch
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