I'm not into bashing people online and Gunnar is a valued member of the foiling community and look forward to his future reviews and videos.
The point of this thread is to address the elephant in the room, or the gap between the 950 and 1100 for winging.
A quick google on "relationship between surface area and lift" brings us to NASA, and the first sentence is
"The amount of lift generated by an object depends on the size of the object." and another interesting sentence is
"Takeoff and landing are times of relatively low velocity, so to keep the lift high (to avoid the ground!) designers try to increase the wing area."
"Lift is
directly related to surface area"
The article continues to explain the lift coefficent if you are interested.
https://www.grc.nasa.gov/www/k-12/airpl ... the%20lift.
And NASA has a simulator to use
https://www.grc.nasa.gov/www/k-12/airplane/foil3.html
Now, back on track for winging with Sabfoil/Moses, the following are the wings in question
1250 = 2400cm2
1100 = 2100cm2
790 = 1550cm2 - this needs to be replaced as slow and down turned wingtips
950 = 1350cm2
945 = 1300cm2
799 = 1100cm2
1000 = 987cm2
800 = 840cm2
For my needs specifically for winging, in light-medium wind weighing 95-100kg I need MORE lift as there is less power/lift generated by wings in this wind range both in your hands and under water.
Moving to a 945 with less surface area (-50cm2) is simply not a rational thing to do.
2100cm2 - 1350cm2 = 750cm2 GAP
There is a 750cm2 gap between the 950 and the 1100 and this is almost a 695 (770cm2) wing!
It's just like kite foiling, using the same foil e.g. W800
< 15 knots = 11m kite, less wind need more surface area to generate power
>= 15 knots = 9m kite, more wind need less surface area to generate power
I need to do the opposite for winging for my weight
< 18 knots ? = 1600-1750cm2
> 18 knots = 799/950 (799 is better than the 950)
> 23-25 knots 800/1000
> 30-35 knots = any kite wing if you are brave lol
I'm sure I'm not the only person for winging who believes there is a GAP in the range that needs to be addressed. I wish I had the CAD software and
machinery to design my own foils...