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PostPosted: Sun Apr 08, 2001 7:01 pm
by Guest
Does anyone have the dimensions/design for a lifting bridle?

Bob Stephenson
US 370

PostPosted: Sun Apr 08, 2001 9:41 pm
by Guest
Bob

Most people use a simple six foot lifting strap. Such a strap, rated at 6400lbs - 5,000 in the "choker" configuration as used to lift a J80, is available from Northern Hydraulics, 800-533-5545, Item# 15006, $25.

I've used a five foot strap. It works but is difficult to stabilize (see below) and can make a mess when the hoist is greasy.

As you know, the strap attaches to the lifting bar on the keel bolts. The boat then needs to be stabilized against pitching and rolling. I have tried and seen others use several methods over the years with various degrees of success. They all envolve at least two and some as many as four lines to stabilize the boat.

At the 1999 NAs in Annapolis the guy who ran the boatyard showed us what I consider the simplest and best method. It has always worked flawlessly:

Using two nylon docklines, fasten each one to the stanchion bases alongside the cabinhouse p/s. Run the ends through the loop in the strap and back to the p/s winches. Once the strap is tensioned by the hoist, put medium tension on the two lines and tie off. Make sure the strap is tensioned before the stabilizing lines and that the stabilizing lines are nylon (not low-stretch line) so that you don't end up lifting the boat by the stanchions.

PostPosted: Fri Apr 13, 2001 11:02 am
by Guest
Quick add. Once you figure out the right dimensions of the four lines, permanently tie them off to the strap, and use caribeaners (clips) to attach to the stantion bases in the future. We have the same setup with wires instead of line, and a chain lifting "strap". Works great.