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Old 01-02-2013, 09:12 PM   #77 (permalink)
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how to calculate power at a given speed


I understand how the forces are calculated as explained in footnote 7, but I'm not understanding how to calculate power.

I think total power = power drag + power rolling resistance + parasitic loads.

I've used the equations from Pamvec chapter 3 of P = 0.5*rho*Cd*A*v^3 + (Crr * Mtotal * g * v) but it gave me some ridiculously large numbers

What is the formula used in the online tool to calculate power?

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