calculations
If you want to work with dinosaur units as I do,for the drag force calculation you can use: 0.00237 slugs,for "rho" ( air density ), S becomes A (frontal area ),measured in square feet,V is your velocity,measured in feetpersecond [( MPH multiplied by 5,280 ( feet per mile ) divided by 3,600 ( seconds per hour )]. Once you obtain F,your drag force ( pounds resistance ),if you want to know the horsepower necessary to overcome that force at that speed,take F,and multiply it by ( V divided by 550 ( footpoundspersecond ).That's the amount of power that must be delivered to the drive wheel(s) to overcome aerodynamic drag at that speed.Engine power will be higher do to driveline losses.I'll get to metric one day,just not there yet.Sorry!
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Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
