Understanding Isaac wind speed.

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flysplat
Posts: 23
Joined: Thu Sep 20, 2018 9:03 am

Understanding Isaac wind speed.

Post by flysplat »

Looking at the speed (wheel/wind) graph in Isaac I've deduced that if wind speed extends above the wheel speed in blue that it is a head wind.

If the wind is blue below the wheel speed line it was a tail/back wind.

I'm confused by the figures at the bottom of the screen. Riding into a head wind it shows Speed 14.1 mi/h, Wind 20.2 mi/h. Blue wind speed graph was above the wheel speed graph.

I know I was riding at 14.1mi/h (wheel speed) into a head wind but it wasn't a 20.2mi/h head wind.

What are these figures telling me?

Do I calculate wind speed as 6.1 mi/h? ie 20.2 - 14.1?
Velocomp
Velocomp CEO
Posts: 7793
Joined: Fri Jan 11, 2008 8:43 am

Re: Understanding Isaac wind speed.

Post by Velocomp »

You correctly answered your own question :-)

Ground wind speed is the difference between total wind speed (20.2) and total bike speed (14.1)
John Hamann
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