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Old 06-27-2021, 10:59 AM   #55 (permalink)
RoadRaceJosh
Road Racer
 
Join Date: Jul 2009
Location: Portland, Oregon
Posts: 22

Pearl - '15 Fiat 500e

SL 500 - '94 Mercedes-Benz SL 500
90 day: 17.75 mpg (US)

Camper Van - '06 PleasureWay Traverse E250
90 day: 16.13 mpg (US)

TownAce - '94 Toyota TownAce
90 day: 18.87 mpg (US)
Thanks: 0
Thanked 13 Times in 5 Posts
Quote:
Originally Posted by jakobnev View Post
Winding up the string on a spool against a force also requires a power input.

What is the difference?
Pulling the string on the cart adds energy to the system.

When Blackbird is traveling at the speed of the wind there's no energy available to add to the system.
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