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  #11  
Old 03-09-2013
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Re: Mast Step Problem

From what I am gathering from different sources, is that the missing portion of the hinged plate is strictly to facilitate the ease of raising the mast and has little to do with the actual mounting of the mast. A friend suggested the mast will sit nicely in the mast step without the part and I can use the pin holes on the mast step to keep the mast from sliding fore and aft. One of the bolts that secures the step to the deck is slightly raised, so I am wondering if the missing hinge piece was missing for a very long time and a previous owner did that intentionally to stop the mast from sliding to the fore. I am also missing one of the pins, so this theory makes sense in that way.
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Old 03-09-2013
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Re: Mast Step Problem

Yes, I agree you could make that work.. You might want some side shims to keep the mast centered in the channel, but it just means you'll have less stability raising and lowering the mast - but it's a small mast.
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Old 03-09-2013
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Re: Mast Step Problem

I don't think side shims are needed. The tongue width is the same as the inner dimensions of the mast step.
I have come to the conclusion that in spite of things I've read, Sumner Yachts did indeed change the boat after they bought it from Ocean Yachts and that would explain why the specs are inaccurate
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Old 03-09-2013
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Re: Mast Step Problem

ok .... so I think the pieces have all come together.

My boat was made by Ocean Yachts. They were bought out by Sumner Yachts. I was under the impression that they continued making the boat, "as is". The specs I got online are from Sumner and not OY. Apparently, the OY model did not have a hinged mast step setup, which the Sumner specs indicated it had. So, Sumner did indeed change the boat. The model I have is merely a mast step and the pins were used to center the mast tongue and keep it from sliding fore and aft.
I had wondered how a hinged setup would work, anyway, since the centerboard console would be in the way of raising the mast in this way. Someone else also pointed this out.

Thanks for all your help!

Last edited by Ei Leen; 03-09-2013 at 04:42 PM.
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Old 03-09-2013
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Re: Mast Step Problem

Yep. What you have there is a tenon mast heel or plug, which is made to fit into that channel and be held roughly captive by pins thru the drilled channel on the cockpit sole. That particular setup is made today by RWO and sold by APS.

APS - Other Spar Manufacturers & Parts

(Scroll down to part R2010)

Here's a similar setup by Super Spars: Part 040 plugs into part 018.

Raising the mast requires muscling the sucker upright, but once the stays are attached, it isn't going anywhere.

If you want a hinged system, you can either try a pin & tabernacle type:

HERE

Or remove the tenon heel and add a hinged plate, which would be easy enuf. You'd need to shape a plug (wood, Fiberglass plate, or HDPE) to fit snugly into the base of the mast, maybe an inch thick. Screw that in place thru the spar sides, then your mast plate screws to the plug. Once up, nearly all the force on the mast is compression.

Dwyer Hinged Mast Plates - Stainless Steel - Mast Plates & Steps - Spar Hardware - Sailboat Hardware & Rigging - Downwind Marine
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