joeballow forum posts in last 60 days

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joeballow
joeballow
42 posts
42 posts
5 Apr 2026 1:26am
I'm no racer but upwind when a gust hits I heel the board over further so the extra lift is pushing me upwind instead of out of the water. Along with front foot pressure that is probably my most active control. Downwind you can usually turn down a little further but gusts already aren't as big a deal since the apparent wind is a lot lower.
joeballow
joeballow
42 posts
42 posts
26 Mar 2026 4:51am
To add a little more to my post, the law of physics we are talking about is Archimedes' principle:
en.wikipedia.org/wiki/Archimedes%27_principle

This is a great interactive blog post that takes you through it starting from the basics:
ciechanow.ski/naval-architecture/

I actually found this blog from his post on airfoils which is directly applicable to how our foils work as well:
ciechanow.ski/airfoil/

They are long reads but I find them really informative.
joeballow
joeballow
42 posts
42 posts
26 Mar 2026 3:45am
The physics is that if something weighs less than the weight of the water it displaces it will float, if it weighs more than the weight of water it displaces it will sink.

1 liter of fresh water water weights about 1kg so that's where the rule comes from.

The volume of the board and foils needs to be higher than the weight of the board and foils and rider in gear in kg or it will sink in fresh water when not moving until the additional volume of your submerged body makes up the difference.
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