Examples of repairs : Golden Hind repairs
Example 2
31ft Golden Hind class constructed from plywood. The vessel had significant decay in the starboard aft quarter of the hull and deck and transom.
In this case the decayed section of hull skin was removed and the underlying framing was seen to be seriously decayed and required cutting away and renewing with new sections scarfed in.
The top of the transom was also seriously affected by decay and required replacement of along with a new quarter knee and associated structure.
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The plywood deck was also affected in this corner
With plywood, the extent of decay can be far reaching in many cases and, although fairly easily repaired, it is important to be aware that a small area of apparent decay in plywood always leads to a much more significant area of being affected.
In this case, new deck sections, transom sections and hull skin and associated framing were all replaced. New toe rails and rubbing strake fitted after the hull and deck was re-sheathed
Points to remember when repairing Plywood construction:
- Ply must be Marine quality BS 1088 Min.
- Must have right number of laminates depending if area is subject to stress.
- All edge-to-edge joints must fastened with oversize butt-blocks on rear. Shouldered joints are acceptable but subject to correct proportions.
- Scarfs joints must extend from 7 to 12 times the thickness of the material dependent on the glue and fastenings used.
- Plywood laminates must be aligned as per original build.
- Repairs to supporting framing must be scarfed over the correct distance - butt joints in supporting framing are not acceptable under any circumstances.
- Epoxy and polyurethane glues are very strong but only when the joint is close fitting. Epoxy glue cannot be relied on as an instant solution.
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