[Land-speed] Tire Valves

[Jet Fuel]

On Sun, Jan 24, 2010 at 8:45 AM, Dale Krumheuer <dmirror3 at yahoo.com> wrote:

> When you think about why that matters, picture the centrifugal force
> exerted
> on the center pin of a Schraeder valve. The faster the wheel spins,
> centrifugal force increases. The centrifugal load  on  the center pin of a
> Schraeder valve can cause the valve to partially open.



...and that's precisely what happened to John Howard when he was motorpacing
behind the modified Vesco streamliner on a BICYCLE to achieve his record of
152.2 mph.

He was losing tire pressure during initial runs. Sealed steel caps solved
the problem.

http://www.youtube.com/watch?v=BmpxJWAJbFM

-The Other Glen (SCTA 966B)