Wind!

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Feb 26, 2008 | 01:55 PM

08hybridok

Thread Starter

Ridiculously Active Enthusiast

Joined: May 2007

Posts: 592

Wind!

I'm sure it's been mentioned before, but it's definatly a factor!

17mi cross city trip today, mostly N/S direction, figiting strong N wind going (about 30mph avg wind) I struggled and got 27.something according to SG. Return trip, wind to my back I got 34.7!

Feb 26, 2008 | 03:40 PM

Mark E Smith

Omnia Gloria Fugit

Joined: May 2007

Posts: 744

From: College Station Texas

Re: Wind!

Not just head winds cross winds will have a head wind component due to the apparent wind effect.

http://www.sailingusa.info/true_wind_calculator.htm

Feb 26, 2008 | 09:11 PM

gpsman1

Hybrid and Ethanol Expert

Joined: Mar 2005

Posts: 3,616

From: All over the Central U.S.

Re: Wind!

Yup. Wind does not hurt your MPG 50% of the time, and help you 50% of the time.

Wind hurts your MPG 75% of the time, and only helps you 25% of the time.