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Thanks
Well formulated explanation, Mac.

As I understand, then , that the lateral â€œlift â€œ of the fin is nothing but the lateral resistance that the fin provides against the force of the wind ...

Should we factor in the speed of the moving board?

In fact, this is exactly my question i
In other words, does speed provide lift to the board or does the fin itself provide this lift once th ...

I am resurrecting an older thread on this topic.

I always thought that for the board to overcome the water resistance and the weight of the rig (and the sailor), there has to be a vertical upward ...

Usually I rig my sails on a 45 cm long MF extension, which has a collar allowing variable extensions depending on the sail and the downhaul I want to give.
I also have, however, a much shorter NP M ...

Thanks for your replies.
This question never occurred to me before because I usually do give an extension depending on how much downhaul I want to give.
This time , with the luff of the same lengt ...

Do I need to extend the mastfoot extension if I rig a 458 cm luff sail on a 460 cm mast or can I set it with no extension ?

Thanks
Ittiandro

I have a new vario top HSM 5.2 wave sail and a 430 cm mast. The specs on the sail say 430-25 , mast 442. I understand this to mean that I have to give a mast extension of 430+ 12= 442.
However, if ...

I didn’t know much about wave sails and the difference with regular freeride sails. Somebody gave me one ( a HSM 5.2 wave sail) . Winds were gusting probably up to 20 knts and I thought it would be O ...

The material I read on your board says the dagger is retractable.

" It’s fitted with a retractable daggerboard to aid stability and increase upwind sailing".

What's the real story?

...

Thanks you all for your advice.

Ittiandro