> Do you have the actual Drag coefficients for the Series IV, V, and Tiger
> MK1, MK1a, and MK2 ?
>
> There were slight differences in these especially in the grills, and
> mirror placements, and would be drastically different with the different
> top configurations. i.e. no top, Soft top , and Factory Hard top?
>
> Ride height would also play a roll. I assume your number were based on a
> "Standard" car. We'd need a wind tunnel to determine what would make it
> "Slip" through the air more easily. Like an air dam under the front
> valance, fender flares, no mirrors, or antenna. The possible number here
> boggle the mind, or at least MY mind.
>
> Rich
>
>
> ----------
> From: Lawrence E. Mayfield[SMTP:mayfield@Traveller.COM]
> Sent: Tuesday, March 10, 1998 11:42 PM
> To: Richard Atherton (Entex)
> Cc: alpines@autox.team.net
> Subject: RE: Updated HP vs Speed
>
> Thanks for replying! I had received a notice of some sort saying it was
> undeliverable.
>
> The horsepower is at the rear wheel. To get HP at the crank, you need to
> consider the differential and transmission efficiencies. Since they are
> purely mechanical, then the efficiencies should be pretty high, maybe 95%
> each? If so, then the crank HP is about 10% more. As to SAE or DIN, you'll
> have to figure that out. And remember, this is the power to keep the car
> at
> that speed without accelerating. I left off the two refereences also. The
> first is from Airplane Aerodynamics, 1961, and the other is Fundamentals
> of
> Vehicle Dynamics, 1992.
>
> I will post all of this on a web page currently under construction.
>
>
>
>
> t 11:31 PM 3/10/98 -0800, you wrote:
> > So...is the ~ 141 HP needed to overcome the drag of the calculated
> >variables supposed to be at the wheel, or the crank. Also are these
> finding
> >based on current S.A.E. HP ratings methodology, or the old way as back in
> >the 60's?
> >
> >Rich
>
>
>
>
> L.E. Mayfield
> 124 Maximillion Drive
> Madison, Al. 35758-8171
> 205-837-1051
>
> DrMayf@AOL.com
> mayfield@traveller.com <<<<preferred
>
> "Thought is the software of the mind;
> rational thought is bug free!"
>
>
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