Right, scores of dinghy and landyacht classes use these and "we" can't find a sailmaker willing to do us one ?

Where do the BIC dinghies get theirs ? The class 5 and promo landyachts ?



Bloody hell !

I'll give you a leg up.

I can get you a ready-to-sail unstayed pocket sleeved rig as displayed in the picture suitable for a heavy adult for :

Complete mast (collapsable 5.70 mtr tall from alu tube) 248.66 Euro
6.60 sq. mtr modern sail , transparant pocket luff 458,36 Euro

The reefable version of that sail is sligtly more expensive at 489,13 Euro

You only need to add the boom and the rig is ready to go.

Note how this unstayed rig the heaviest available and it is used for doublehanded landyachts using 7:1 mainsheet system fitted to the middle of the boom (combined downhaul and leech tension system). Its flexibility is optimized for about 250 kgM static righting moment. Comparable to a 75 kg adult hicking of the luff hull of a F12. A typical 12 year old child of 40 kg would use the lighter mast as I quoted in my other post (128.01 Euro).

These quotes are excluding shipping but the tallest section is only 2.70 mtr long and so international shipping shouldn't be too much.

The main point being that you can't get beyond 707.02 Euro excl. taxes and shipping for the strongest modern shaped off-the-shelve pocket luff rig (mast + sail) that is ready to be fitted and used. I seriously doubt whether it would go past 1000 Euro's incl. NON-EU taxes and shipping.

It looks like this. Note that the pronounced back rake of the mast is largely the result of the mast foot being raked back by some 15 degrees on landyachts. This is done to bring the sail pressure in line with the rear wheel axles. On a boat the mast could be raked straight up and only the mast bend would move the tip back by something like a mtr under maximal sheet load. The resulting boom clearence can be kept or used to some 0.4 sq. mtr. addition cloth as allowed under provisional F12 rules. I'm convinced that I can get a custom sail ordered from these guys for a reasonable additional fee. Afterall, they also do complete custom landyacht designs.

Note that I have a slightly smaller version of this series of rig in my possesions. I got the 5.5 sq. mtr. reefable version with the 128.01 Euro mast. It is the best rig I have for my class 5 landyacht. It pumps very well in the gusts and it is a dream to sail. This is quality stuff. For F12 usage they may be optimized here and there but the off-shelve-rigs will be a very good and cheap starting point for a prototype neverteless. They'll be quite close to what you want.

Wouter