I will try Seabreeze
Thanks for the recommendation @PrfctChaos!! Sounds like a suitable size and I like that the SD2030 is not that thin.

I doubt you will be fast enough encountering cavitation no matter what profile you are using (45-50kts) so it doesn´t matter IMO. Or do you mean separation or ventilation (often confused with cavitation). Cavitation means the pressure on the suction (upper) side of the foil is so low that the water...

And I read that the H105 profile that @robke mentions is designed to prevent cavitation. Does your "selector" also takes into account cavitation?

Hi @prfctchaos, Do you also give advice to people not having a backyard, but a roof terrace? :) I am going to build an electronically driven hydrofoil. So this has some extra weight for battery and such. Also I would like it to take off at low speeds, since I would like to foil in places where there...

SurfPlan hobby

These are very valuable tips! Thanks. This kite only has two rows of bridles, so indeed is unsupported at the back of the canopy. I will add a third row in the back and then will move the tow point more backwards. Now I also notice it is far forward from the pictures. From the kiter perspective I co...

Hi, Some time ago, I built my first kite, a 2-line 1.2m2 trainer foil. With AR5 and 20% thick MH92 profile. Would any experienced builder be so kind to give some points of improvement for a next build, or even for tweaking this one? TrainerKitePics.pdf Observations are that it doesn't respond quickl...

Tegerinenashi. It seems you answered your question yourself. From what I remember it also took me roughly the same number of strokes to increase a bar. And I believe it is the Gas Law that covers this. Assuming volume and temperature stay constant the pressure is linearly related with amount of mole...

Today I made a test tube and tested stiffness. These were the results. When pumping to 4 bar the tube burst near some ugly stitching.
The energy a tube can withstand before buckling really goes up with increased pressure!

Great design Rein! Why cut paper? I lay the fabric on top of the paper and heat cut the fabric. You will see the lines through most colors. Saves effort.