Hello all, Does anybody have photos of how they rigged the mainsheet on a windsurfer boom onto a LLM?
Thanks,
Peter
G'day Peter, A bit rough and ready but we have been rigging our windsurfer booms with two individual pulleys, one each side of the sail. A few wraps of blind cord go from side to side on the boom and the pulleys are supported off this. As well more blind cord ties this mess back to the end of the boom to stop it pulling forward. Each block is tied to prevent it slipping sideways. Otherwise same set up as with a single boom, tie off to seat support, up to pulley on boom, back down to pulley on seat support, up to other pulley on boom then forward to the mast / sail pulley, down to mast base pulley and back to pilot. If you can rig the sheet to go forward to the mast and clear the sail it works well otherwise there can be problems gybing with the released sheet dragging against the sail and not releasing !!! A little bit of overlap is manageable, the setup on the front yacht above worked well. The yacht behind it would misbehave gybing if you forgot to reach up and give the sheet a shake to loosen it when turning. Long booms on short sails can help with clearance but are unwieldy. If the shape of the sail lets you use a straight landyacht boom it is a better option.
Phum's new yacht. He asked me to post these pics for him.
Sorry about the delay mate. 
I should thank Ben to for his advice.
The frame is to the LLM diamensions but the material differs. I had to use what I could buy, scrap here is really scrap and nearly as dear as new steel.
The seat I changed to try and make it more comfortable than the last one but that was probably a mistake given my poor carpentry skills. I have a 4.8 windsurfer rig I am going to start with
No need to use windsurf boom unless the sails are very,very old soft unbatton sail. battoned Windsurf sails fully downhauled are extremly stable and can be used with a conventional under sailboom If you enter seabreeze general page 2 in search you should get all the old postings look for useing uncut sails by a poster , By the north sea , been discussed at length.
Tried to cut and paste site but fails but by inserting Seabreeze land yachts general forum page 2 in search engine brings up page in micro edge
www.seabreeze.com.au/forums/Land-Yacht-Sailing/General?page=2
Look for uncut windsurf sails
www.seabreeze.com.au/forums/Land-Yacht-Sailing/Construction?page=2
You may find the above usefull it brings up all the old posts
I originally used both aluminum and carbon windsurf downhaul extensions. Broke both under unique circumstances. Built a downhaul from schedule 40 pipe.
Made the boom from half a windsurf mast. I can use the same boom for my 2.5m sail up to my 9m sail. I don't yet own any 10-12.5m sails.
I run my sails fully downhauled and they rotate the battens around the mast perfectly. The more I sheet in; the more the sail is out hauled.
I'm interested in if I combined the downhaul and mainsheet. Would it be absolutely superior or at least better?
I'll get some pictures uploaded.
This is the key piece if you want to make a windsurf style downhaul extension:
www.clamcleat.com/the-gap-closer.html
Does anyone need any specific details on making a boom or running downhauled sails on a land sailer or converting a buggy to run a sail?
imagine a Blokart. Now imagine it converted so the downhaul and outhaul are operated as one. How would I go about rigging that up? Mounting and attachment points plus the large block.
