Tests and performances

 The first tests were a little surprising.

I thought to have some problems concerning lifting forces, because I was not sure about my hydrofoil surface calculations.
In fact, the board took off in the third test, when the wind speed was strong enough (about 15 knots)

Two problems appeared:
 

- First, a bad drift balance which made the board luff.

- Then ventilation occured at the main foil strut.

To try to eliminate these two problems, I equipped the main foil strut with fences to avoid ventilation and I fitted a fin at the rear.

This last version steers well and takes off with a 15/18 knots wind.
Speed is not wonderful (about classical board speed) and ventilation still appears at high speed.

So, a lot of work is still needed to obtain better performances.

More comments will appear on this page as soon as possible.
 
 
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