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 * (V3)

HP loss due to Aerodynamic Drag is approximately

 equal to:   

------------------------------------

 

 

150,000

where:

 

Item Value Units
Drag Coefficient (Cd) N/A
Frontal Area Ft.2 m2
Speed MPH km/h

 

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 re-calculate the HP loss -- it doesn't double, it goes up by a factor of 8!