I used the graph paper design in this link. Lazy Jacks
You would need to adjust it for your shorter boom. Used small cheek blocks on the mast
about 1/2 way between the spreaders and the mast head
. Used brass rings in place of other blocks. The blocks aren't needed and a waste of money
. Stow the Lazy Jacks against the mast when not in use. Got the cheek blocks at a Blue Pelican Marine
consignment shop in Alameda, bought a bunch of rings on ebay for $5, a few lightweight padeyes, and about 200' of 1/4" line and I had them done. The line was the most expensive part.
On my long boom, it was necessary to run the line on the mast as high as possible to capture the aft part of the sail. Even putting the cheek blocks 30' feet off the deck
, have to stuff the aft part of the sail into the lazy jacks. The lazy jacks will hook the lower batten on the full batten main, if deployed, when I raise the main unless dead into the wind
. I keep the lazy jacks stowed on the mast except when dropping the sail so don't have a problem with hooking the battens. Lazy Jacks have been great. I single
hand a lot and just release the halyard
and sail comes down and stays contained on the boom. Furl the jib
and I'm ready to put the boat in the slip. Flake the sail and gasket
it to the boom when I'm in the slip.