Quote:
Originally Posted by aerohead
In 1932,Oskar Tietgens and an assistant at Westinghouse Laboratories kinda did the same thing to a self-propelled railroad car.
They published Cd 0.08 for their creation.These early numbers may be taken with a grain of salt,as Hucho cautions,but are interesting nonetheless.
Love the 'Jeep.'  |
My sister had me drive her car, which really must have seemed like a good idea at the time. When I did not have passengers, I pulsed and glided on the freeway, and it seemed completely different than my car.
Her car weighs over 51% more than mine, with a 44% larger engine and 70% more horsepower, but has the same highway rating.
She laughs at the EPA rating, while I beat it easily.
It seemed to coast much further, so I tried to keep track, and it appeared to travel about .75 miles while going from 70 MPH to fifty.
How much of that would be inertia versus friction? Would my car coast in neutral worse just because of all-wheel drive?