At 11:50 AM 11/6/01, you wrote:
>Yes but for me:
>
>Trouble with that is I have lakester data and am trying to apply it to
>streamliner......
>I think the lakester Cd is about .14 based on 840 hp and frontal area is
>about 13.5 sq ft. (speed 270)
>If I assume that the Cd of the wheels and tires doubles the Cd of the
>liner, then the liner Cd is .07
>I still think that there are too many assumptions and the only practical
>way to prove it is to run and then do "coast downs".
>Skip
Howdy,
but the coast downs should be done on a highway to be accurate
with the equations used....the Salt has an unknown rolling resistance.
lets go out on hiway 80 and make some runs.....nice a flat there, all we'd
need is some 60 MPH coast downs.....
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
140.292 MPH set 2000
144.396 MPH set 2000
MPS-PG 441 c.c. 1967 BSA Victor Motorcycle
95.193 MPH set 2001
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