[Rhodes22-list] Mast Crutch
peter at sunnybeeches.com
Tue Apr 17 16:18:15 EDT 2018
My boat is currently a couple of towns away in the driveway of a canvas guy who is making a new cover for my Bimini, so I can’t measure anything for you at the moment. However, I can tell you from memory the the roller at the top of my mast crutch (an official GB product) is about 5 feet above the top edge of the transom.
I’m not an engineer, but I’m would guess that if you use the GB mast hoist crane (or something similar) to lower the mast to a crutch that’s much shorter, you’d be putting a lot more stress on the crane and the mast base.
It’s never even occurred to me to worry about clearance when towing the boat with the mast in the crutch. If you do have an especially low bridge to clear, then I’d suggest lowering the mast to the aft rail while standing on the lazarette. I’m only about 5’8”, but I can do this without much problem if I first lower one of the uprights that sticks up above the roller.
s/v Silverheels (1988/2016)
> On Apr 16, 2018, at 4:37 AM, Mark Olson <Mark-Olson at verizon.net> wrote:
> I have been raising my mast without a crutch. I have one person stand at the
> stern and raise it then hold as I tighten the winch which then takes over.
> But I think a crutch would be much better. I've looked and there are good
> ideas of what to build but I don't see any mention of height. Does anyone
> have an opinion what a good minimum would be?
> I'm thinking of using it for transporting as I only move it twice a year.
> Once to Nyack, NY and once back. The trip is about 35 miles. I'm not sure
> what the clearance is on the route so I want to know the minimum that would
> work well.
> Mark Olson
> S/V Satchmo
> Sent from: http://rhodes-22.1065344.n5.nabble.com/
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