John,
I'll put this email question and others that may pop up on the list into a
special folder to look at for the 2001 rule book.
Thanks - Dan
----- Original Message -----
From: John Beckett <landspeedracer@email.msn.com>
To: Jonathan Amo <webmaster@amoproductions.com>
Cc: Land Speed List <land-speed@autox.team.net>
Sent: Thursday, January 27, 2000 10:30 AM
Subject: Re: concerning tires
> It does for bikes, but they don't mention it for cars. Maybe there is
amiss
> print? The 1999 rule book (page 15) says: "Up to 250 MPH - Shaved narrow
> tread Super Speedway tires". Don't know that there is such a thing. Is it
> possible that it should read: 'Shaved narrow tread OR Super Speedway
tires'?
>
> John Beckett, LSR #79
>
>
>
> ----- Original Message -----
> From: "Jonathan Amo" <webmaster@amoproductions.com>
> To: "John Beckett" <landspeedracer@email.msn.com>
> Sent: Thursday, January 27, 2000 3:04 AM
> Subject: Re: concerning tires
>
>
> > I also believe that tire shaving also makes your speed rating 1 higher
for
> > shaved tires.
> >
> > Jonathan Amo
> >
> >
> > John Beckett wrote:
> >
> > > John
> > >
> > > I believe the reason for shaving tires is to reduce the weight and
> therefore
> > > the effects that centrifugal force would have on the tire at high
speed
> > > (RPM).
> > > And half tread should work just fine.
> > >
> > > Rolling resistance is a whole other matter, but it can't be that much.
> My
> > > timeslips from Maxton and Bonneville would indicate that altitude, and
> > > slipery salt, are bigger factors than rolling resistance.
> > >
> > > John Beckett, LSR #79
> > >
> > > ----- Original Message -----
> > > From: "john robinson" <john@engr.wisc.edu>
> > > To: <land-speed@autox.team.net>
> > > Sent: Wednesday, January 26, 2000 9:09 AM
> > > Subject: concerning tires
> > >
> > > > Howdy,
> > > > A few of questions and observations:
> > > > I'm running "H" rated street radials on my H/CC at the Salt, they
have
> an
> > > > aggressive tread design, and one of the safety techs said that I
> should
> > > > shave the tread for better speed. Somewhere I read that the
> coefficient of
> > > > friction of the Salt is on the order of cold wet asphalt, and my
> feelings
> > > > were (when I purchased the tires) that the aggressive tread would
help
> in
> > > > traction. my speeds are 130-150, (150 hope full, anyway) Any
thoughts
> > > here?
> > > > Also, I've been reading Forbes Aird 's book "Aerodynamics" published
> by
> > > > HPBooks1997, he has a very good section on tires and rolling
> resistance at
> > > > the Salt, and it states in a passage relating to the Summers
Brothers
> > > > Goldenrod that the tires soaked up 61% of the total drag at the
record
> > > > speed, although the tire model used in the equation was based on 60
> year
> > > > old data... are there any newer equations available? anybody know
how
> to
> > > > test rolling resistance? or where I can get the info to do a rolling
> > > > resistance test?
> > > > Another book I just picked up and although it is directed at and
about
> the
> > > > solar vehicles built at various universities, is "The Leading Edge"
> by
> > > > Goro Tamai, published by Robert Bentley1999. This book is focused on
> low
> > > > speed aerodynamics and many of the concepts can be transferred to
LSR.
> > > > Although it does have advanced math in it, with the limited algebra
I
> > > > studied in high school, (well OK attended class and worried about
> pimples,
> > > > girls and cars) I am able to follow most of it....probably because I
> read
> > > > the Aird book first, easily understood math in it.
> > > > Two years or so ago, Motion Software (the Desktop Dyno people) were
> > > > developing a game/engine test software about Bonneville. It seems to
> have
> > > > been in development, and then it died, anybody heard of it? got any
> > > insight
> > > > about why the program went away? they don't seem to answer their
> email,
> > > > although they are still in business. I'd like to get my hands on it,
> just
> > > > to play with it.
> > > > anybody got any other reading material they'd like to share?
> > > > anyway, that's about it for now, drive careful
> > > >
> > > > John Robinson, Mechanician
> > > > Mechanical Engineering University of Wisconsin
> > > > 1513 University Ave.
> > > > Madison, Wi. 53706
> > > > 608-262-3606
> > > > FAX 608-265-2316
> > > > Current World Land Speed Record Holder
> > > > Bonneville Salt Flats
> > > > H/GCC 92 cu.in. 1980 Dodge Colt
> > > > 131.333 MPH set 1995
> > > > 136.666 MPH set 1996
> > > >
> > > >
> >
>
>
>
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