We did get some new calcs done on the carbon version by a high end NZ engineer. The max strength (perfect) carbon layup was right on the max load...
Thank you for the replies. The cross section of the mod 70 foil pictured is the end in the boat which does not require alot of strength. Mod 70...
Hulls have a hdpe soft bearing that is a tight fit on the foils. Foils have no marks from the hull bearings. Boat is a sailing cat. Foils generate...
Hi, We have curved lifting foils on a catamaran. They fail after about 2 years due to fatigue. They break at the hull due to the tension side...
We built a box in the hull 30mm bigger than the foil on all sides. Thickness of the box laminate depends on the size of boat and foil but for the...
Thank you for your reply. The foils have not shown any tendency to cavitate yet but most of our speed is less than 25kn with the max around...
Thank you for the replies. Foil is a basic Clark Y design 12% chord chosen for its ease of build and its ability to work well even if the surface...
Thank you for the reply. I take on board your politeness comment. The original foil was designed by a structural Engineer, however it is all a bit...
We have curved foils on our boat similar to a orma 60 type foil. They generate around 4 tons of lift each. We made them in solid carbon uni/db...
I wish to build a mainsail track lock that works on a lock on the sail track. Antal make one but only for a 24mm track. I need one for a Harken...
Well since I am looking for info in another thread I will give you some feedback. Boat will cost at least double to build compared to a standard...
Should be 24 ton metres max with like 15 people etc etc. That is alot compared to a Monohull but as Tansl has pointed out they are not the same....
