Ray, I believe it does indeed invalidate the attempt. With only two
wheels on the ground it is not a car. But, money talks.
mayf
Ray Buck wrote:
> The question of "how many wheels on the ground" has been discussed
> before and I'm not sure I ever saw a definitive answer.
>
> If a car is presented with 4 wheels but one (or even 2) of them
> happens to lift off the ground during a record run, is the record
> invalidated? It might be seen as somewhat like outrigger (training?)
> wheels on a bike liner. Some may start with 3 or 4 wheels, but at
> speed only 2 are in contact with the ground at speed.
>
> Just for the sake of argument, let's say that a car like the
> Bloodhound which has 2 front wheels with a much narrower track than
> the rear, finds itself in a state where the front wheels are off the
> ground for a period of time...maybe 100 yards, maybe a mile...???
> Would this then invalidate an FIA record? Or could someone protest a
> record if they could show that only the rear wheels we in contact with
> the ground? I think that's what Mayf's alluded to in the last
> sentence of his post, and it sure seems like a questionable area to me.
>
> RtR
> (gonna be on the salt early for SW to photograph course setup)
>
>
> On 7/21/2010 3:52 PM, drmayf wrote:
>
>> I am sure that their superior British engineering can come up with
>> power to over come nearly double the drag to go from 762 to 1000 mph
>> ( caveat...area needs to be considered). Transonic drag is gonna bee
>> a bugger to overcome. Ever see a transonic drag vs speed curve? Now
>> if drag is nearly double and it is likely to be way way more then
>> increased thrust needs will be significant. I am sure they can do it,
>> however. I wonder how they are going to over coming rolling
>> resistance? That also goes up as some power function of speed.
>> Going to be interesting for sure. I hope they can keep all the tires
>> on the ground as they set the record. Some manner of objective
>> evidence for that needs to be developed as the shock wave is going to
>> in all likely obliterate the track marks from the wheels.
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