09-12-2013, 07:54 PM
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#18 (permalink)
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Master EcoModder
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
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plywood
Quote:
Originally Posted by Old Mechanic
Take a piece of plywood and cut it to size to duplicate the frontal area of your car. Bolt it to the front of a bicycle and see how fast you can pedal, compared to not having the piece of plywood bolted to the bike, or just run with it (the plywood). 90% of a bicycles power requirement at 30 MPH is aero drag.
regards
Mech
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Cd 1.11 X approx. 6-sq-ft Af = 6.6 sq-ft CdA.
Ouch! 
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