Boston Whaler Harpoon Forum

Mast step repairs

Posted By: Byron Work
Date: 6/1/08 1:13p.m.

Report: outside forum guidelines

In Response To: Access To Mast Step (Stuart in Virginia)

I took a look at the Harpoon 5.2 "Hardware and Wood Insert Locating Diagram". According to the plan, there is a single, 1/2 or 3/4" piece of wood under the tabernacle. This is separate from the wood backer running the length of the centerboard trunk. If it were my boat, I would epoxy some pieces of wood around the inside of the tabernacle post and then screw and epoxy a support block to those. Cover the whole thing with fiberglass, smooth and paint it.
See http://www.ruach.net/HarpSpec.html for the insert diagram
Someone asked why they were not dismasted. The mast is held up by the forestay and the side stays. The tabenacle has little torsional load. It only serves to keep the foot of the mast from shifting left/right/fore/aft. Fiberglass without a wood backer would be of sufficient strength to handle those types of loads. What would likely happen in a catastrophic failure is for the fiberglass of the mast step to break inward toward the bottom of the hull allowing the whole mast to sink vertically inside the front of the centerboard trunk. An ugly thought indeed.
Byron

Messages In This Thread

rebuilding rotten mast step: seeking advice -- Dave from San Antonio -- 5/11/08 8:54p.m.

mast step -- WAYNE, '79 5.2, OCALA, FL -- 5/12/08 6:04p.m.

rebuilding rotten mast step -- Dave from San Antonio -- 5/14/08 3:16p.m.

Mast step repairs -- Burt Powell -- 5/21/08 5:12a.m.

Mast step repairs -- Stuart in Virginia -- 5/27/08 5:26p.m.

Tabernacle Issues -- Stuart in Virginia -- 5/27/08 3:18p.m.

rotten mast step -- Bryan Page -- 5/31/08 3:34p.m.

Access To Mast Step -- Stuart in Virginia -- 5/31/08 7:12p.m.

Mast step repairs -- Byron Work -- 6/1/08 1:13p.m.

Mast Step Preventive Maintenance? -- Bob V -- 6/1/08 8:49p.m.

Make sure you don't epoxy your centerboard in place -- Jenny, Harpoon 5.2 -- 6/5/08 7:33p.m.

Thoughts on this step/tabernacle? -- Dick Seacup -- 6/20/08 4:01p.m.

mast step -- Jay Levy - Indianapolis, IN 5.2 #35 -- 6/20/08 4:55p.m.

Another picture -- Dick Seacup -- 6/21/08 8:00a.m.

Maybe Overthinking It? -- Bob V -- 6/21/08 9:52a.m.

I appreciate the reality check -- Dick Seacup -- 6/21/08 10:00a.m.

seacup 5.2 -- WAYNE, '79 5.2, OCALA, FL -- 6/22/08 8:05p.m.

That was the plan; now too late -- Dick Seacup -- 6/23/08 9:09a.m.

Another picture -- charley-487 -- 6/21/08 11:45a.m.

$0.02 - Re Mast Step and motor mounting ... -- Gene Bragalone - 5.2 #485 -- 6/21/08 1:37p.m.

Outboard included -- Dick Seacup -- 6/21/08 7:07p.m.

Motor Mount -- Bob V -- 6/22/08 2:31p.m.

motor mount -- Jay Levy - Indianapolis, IN 5.2 #35 -- 6/22/08 3:26p.m.

Potential for damage? -- Dick Seacup -- 6/22/08 4:03p.m.

Damage -- Jay Levy - Indianapolis, IN 5.2 #35 -- 6/22/08 5:57p.m.

Doesn't matter now... -- Dick Seacup -- 6/23/08 6:49a.m.

Concern ... -- Gene Bragalone - 5.2 #485 -- 6/22/08 6:40p.m.

Tabernacle Plate/Halyard Organizer -- Bob V -- 6/21/08 7:19a.m.

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