Wow! That's huge. This kind of information should be available to
SSSs. Not as a hard and fast rule, but it sure is helpful information
since there is no reasonable way for an SSS to look at a turn and know what
speeds will be reached. I don't think I have ever approved a course with a
turn that big.
Greg Scharnberg
(My last year as an SSS)
At 11:20 AM 2/21/2006 -0600, Jay Mitchell wrote:
>I wrote:
>
> >The formula for angular acceleration is A=v^2/r. Solving it
> >for r (the turn radius) gives r = v^2/A. For 45 mph in a
> >turn to cause 1.1g angular acceleration, the turn radius is
> >123 ft. Looked at another way, if you want to limit cars
> >that can do 1.1g to 45 mph in turns, the maximum turn
> >_diameter_ you can set up is 446 ft.
>
>Dang. Undetected typo. 2 x 123 is 246, not 446, feet.
>
>Sorry,
>
>Jay
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