Guys, Dave D. can probaly tell us how to do this with a datalogger, so you
don't need any external timing lights or clock-- just yank the clutch and
punch your "coast-down button", and the datalogger measures the speed,
starts the clock, runs for a very brief time (for best accuracy), then stops
the clock as it collects the final speed. You could do it at Maxton, at
Bonneville, or on the Interstate.
Russ, #1226B
-----Original Message-----
From: owner-land-speed@autox.team.net
[mailto:owner-land-speed@autox.team.net]On Behalf Of Twin Jugs Cycle
Sent: Sunday, January 26, 2003 8:44 PM
To: John Beckett; List Land Speed
Subject: Re: Aero Testing
--- John Beckett wrote:
> I opened this can of worms on purpose. Hoping to
> get some better qualified people than me to respond
> with ideas and suggestions.
Well, that "qualified" thing just counted me out.
> And I can't afford the $15,000 a day to
> rent a full size tunnel,
Are you saying that Flipper only likes you for your
car?
> Some extra wire would get the lights
> further apart. Wonder if we would need an extra set
> of lights (four pairs total) to get a true entry and
> exit speed with a given distance in-between(660'??).
I think that's a great idea John(i know i've already
disqualified myself to be talking about this but what
the hell, it's got me excited). Paul and I talked
about "wasted runs"(coasting down from the 3/4 mile
mark) to do this but we're confronted with not having
an entry speed.
> How about a computer program (Excel??) to
> do the math quickly?
With Mayf's formulas(thank you very much for making
these so accesible by the way.. some have been very
helpful(and confusing sometimes) to a couple of us
here in virginia), I know 2 people that are fairly
well versed in Excel and would be happy to help get
the program together. One's already familiar with the
timing lights, equip, etc.
> If there were enough people interested to share
> expenses I bet we could organize an AERO TEST DAY.
Packing up bikes and headed that way now...
(ok, deb just stoppped me)
John, seriously.. count us in and (without speaking
directly for them)I believe Mr. and Mrs. Batts would
love to partake in that as this has been a discussion
of ours a couple times now with no place to test. I
believe the problem may not be in creating the
interest but more so in curbing the curiousity?
Todd Dross
Twin Jugs Racing
#1300b
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