Gary,

I used 65x3 Main tube and 25x3 tension tube for Annie's yard which is about the same length as you need. If you like I'll send you the drawing. But I thing 50 would probably be OK, as the yard I gave Annie was originally desighed for LC's foresail which needed to be very robust.

It's worked well for Annie. It is probably heaver than Annie needs, none the less it is very light and having a good reserve is no handicap. Most yards are built to lightly.



PS. I just uploaded the files to "AnniesConversion" in Box. Both pdf's and dxf's. I actually used a dinghy mast section for Annie's yard (2.2mm wall) but what I said above still applies.