Gtech Aero Drag HP Loss Calculator
This form will calculate the HP that is lost due to aerodynamic drag at a given speed.


Cd * A * (V^{3}) 
HP loss due to Aerodynamic Drag is approximately 
equal to: 
 


150,000 
where:
Cd = drag Coefficient
A = frontal
area in sq. ft.
V = Velocity (speed) in MPH
This calculator illustrates how the horsepower lost to aerodynamic drag goes up by 8 times for each time the speed doubles!
For example, input a speed of 20 MPH and look at the calculated HP loss, then change the speed to 40 MPH and recalculate the HP loss  it doesn't double, it goes up by a factor of 8!