View Single Post
Old 01-16-2019, 01:47 PM   #85 (permalink)
freebeard
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
Why, the elevation changes?

Bidirectional passes on 'level' ground would cancel out effects of wind. Multiple downhill passes take twice as long but wouldn't the gravity assist act as a multiplier for the effect your trying to measure? A vehicle that maintains a steady coasting speed will be more aerodynamic than one that loses speed, and less aerodynamic (plus RR) than one that gains speed on the test section.

I've been wrong before.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote