land-speed
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Re: frontal area/drag coefficient

To: Joe Amo <jkamo@rapidnet.com>
Subject: Re: frontal area/drag coefficient
From: john robinson <john@engr.wisc.edu>
Date: Tue, 06 Nov 2001 12:29:18 -0600
At 12:24 PM 11/6/01, you wrote:
>The EZ-Hook two wheeled streamliner
>is   AERODYNAMICS
>FRONTAL AREA, 3.62 SQ. FT., DRAG COEFFICIENT .1007,
>so frontal area isnt everything, problem is we dont have wind
>tunnels to get the drag number down, this is half the frontal
>area of Goldenrod, and EZ hook was developed in
>the wind tunnel of Cal Tech!!
>Joe
Howdy, running those numbers through the program at 
http://www.bgsoflex.com/auto.html
comes up with the following : ( do they match any known HP numbers for the 
liner?)

Air Density Computed is 0.00228 (my assumption for this number is 29.4 inches)

Aerodynamic "Drag Factor" is 0.00090

Rolling "Drag Factor" is 286.76639

   Computed Aerodynamic Horsepower Required is 80
   Computed Rolling Horsepower Required is 246
   Computed Frontal Lift Force is 73 Lbs.

              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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