average GPM concerns
OK so I took my first trip that was more than 40 miles down the road. My 2000 F150HD 5.4L gas and the drive train in the truck are rated for 8700 towing, my 5ver was at approx. 7600, I was hoping for ...
Forum Discussion
rjstractor wrote:PUCampin wrote:
Power to overcome aerodynamic drag increases as a CUBIC function of velocity. Going twice as fast takes 8 times as much power!
It's cubed? I always thought drag increased with the square of the speed, but I'm no physicist.
Food for thought: atdynamics - AERODYNAMICS 101, TRACTOR-TRAILER AERODYNAMICS
I seemed to recall that a good portion of resistance was actually from under the vehicle/trailer and from the rear as air will hold, not releasing increasing the drag. The above link goes into that detail a bit but equates drag at about 25% in different areas.
Another area that shocks me is those who go and lift their truck but also want better MPGs. :h
