Make a full size cardboard template . Then either transfer it into a cad
system or use a device called a perlimiter<sp?>.
Dave
> -----Original Message-----
> From: owner-land-speed@autox.team.net
> [mailto:owner-land-speed@autox.team.net]On Behalf Of Elon
> Sent: Saturday, November 12, 2005 12:43 AM
> To: land-speed submit
> Subject: Area, as in CdA
>
>
> I am trying to figure the frontal Area on my car to use in CdA
> calcs. I was
> going to put a 1ft length of duct tape on the front bumper and a 1ft piece
> on the windshield. Then get as far back as I can and take a
> digital photo.
> I would print it out and then draw squares all over the picture using the
> duct tape as my calibration for the squares. The problem is the
> perspective
> will shrink the 1ft piece on the windshield and the squares will
> "pinch-in"
> toward the top. I.e., they won't be perfect squares but narrower
> at the top
> due to perspective. Is this the correct way to do all this? Is there a
> more accurate way? -Elon
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