🚀 go-pugleaf

Ted_Eugene_Viens@cup.portal.com writes:

>If memory serves me right, Porsche technical literature  will show that in real
>life conditions on a flat road in still weather the 911 series cars require
>5 horsepower to maintain 55 miles per hour.  I would love to hear from some
>Porsche engineers if I am incorrect.
>Bye...  Ted..

Maybe you could just measure the road horsepower rather than believe
Portch propaganda.  Here's the drill.  Drive at 70 mph on level ground.
Push the clutch and hit neutral.  When the car hits 65 mph, start a 
stopwatch.  When it hits 55 mph, stop the stopwatch.  You now have the 
beginning and ending speed and how long it took to change.  Given the
car's weight, you can calculate how much energy was lost in the process
of decellerating.  I'll let you figure out the math.  It's Physics 101
stuff.

Hint:  Cars I've measured require road horsepower in the range of about
12 to 25 hp @ 60 mph.  Since the Portch rolling wedge is far from 
aerodynamic and uses gumball tires, I'd certainly not expect a figure
near the low end.

BTW, I liked your comment about having blind faith in the engineers who are
designing flywheel batteries.  Reckon you could help bring some of that
to my field, nuclear energy?

John
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