posted 27 March 2001 08:47 AM
I am looking for a detailed Construction drawing and material specification for a floor mounted main sheet stand, to fix my traveller and swivel cleat to, any of the designs indicated by Jim Dominy in his hints file will do, with or without footrest,can any one help?
posted 01 April 2001 04:45 PM
We used the following:
Floor plate 125mm x 125 mm x 6mm aluminium plate. Welded onto this we have 75mm x 50 mm x 3 aluminium box section (the 75 dimmension runs fore and aft).
The box section was rebated to allow the front end sit just below the old traveller rail. The top of the box was cut to be 6mm short of the top of the new traveller rail. The rebate was also 6mm behind the old, and new traveller rail. Into this slot we welded a 75mm x 75 mm x 6mm aluminium angle. Before welding everything up we offered up the pieces and trimmed and rounded corners as necessary. We welded a piece of aluminium tube(50mm dia x 4mm thick) onto the back of the box section and below the angle for the foot rest. We placed an 8mm eye bolt through the angle and tube for the mainsheet block.
The new rail was joined to the old rail by made to measure aluminium blocks and stainless bolts,and by nylon wedges and stainless bolts through the seats.
Hope this helps
02 April 2001 09:15 PM
On ‘BRS’ we decided that the bridle system was the way to go as it allows good variation on mainsail twist profiles and is v. simple to use.
we installed a full length track, in the middle of this we bolted a standard J24 mainsheet block plate (Harken i think, had to be brought in from the US but your chandlery will do that for you), Onto this we then mounted a standard Ratchet block / cam cleat combo.
The mounting plate has several holes (for different swivel base shapes), through 2 unused holes we ran 6mm spectra down to a simple fixing (upside down ‘U’ with 2 bolts) and tensioned untill the track almost bowed down.
This set up is v. light, strong (survived Wed at cowes ’00 ~ F7) simple and the plate provides an excellent foot brace, the only problem is that the track may suffer under a falling helmsman!
Hope this gives you a few ideas