Hull construction and strength

This is to keep track of  hull info as it accumulates, if it isn’t recorded elsewhere: a. “While living aboard our Camper Nicholson in Tranni, Italy, a Corbin 39 was towed into the marina by an employee in a workboat going about 7 knots. Yhe owners on the Corbin had a bad engine. The employee …

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Mast compression post

Is your mast compression post sliding aft? [2019 edit by DS : The premise of this issue as described below is not entirely correct, and best I explain this up front. In the mk1 there are two possible mast and compression post positions. The fwd mast position was originally intended for use with the mk1 …

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Where is the Center of Gravity in a Corbin 39?

This is helpful for many reasons, including GZ stability curves and trailers. Clearly it is in detail specific to an individual boat, but generally it will be approximately the same for all Corbin 39s. a. I don`t have any drawings of the Corbin 39 left. Maybe someone in the group has and could locate the …

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What sealant should I use?

“What Sealant Do You Need?” by Don Casey. In every Marine Center you will find an array of different sealants and caulks sufficient to make your head spin. With so many choices, how do you know which one you need? It is not as difficult as you might think. Virtually all modern marine sealants fall …

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Caprail leaks

I am cruising in Cuban waters at this moment and I will be cruising till the end of April, then be on land for the rest of the year. On another note, after a very nasty overnight of sailing (30 knt on the beam, sea 10 ft) off the Cuban coast, I noticed that I …

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Keel repair

Please also cross-reference to the FAQ entry on Rudder and Skeg Repairs as there is information in that FAQ entry which is equally relevant to Keel Repairs. Here is a 2021 article on Keel & Skeg Repairs that was collated in 2021: – download article as pdf (version without photos, 127kb) – download article as …

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Cabin sole repairs

I’m going to be looking at an older Corbin 39 that has soft spots in the cabin sole. I’d like to know how the boat was built to determine how serious the damage is. Could you please tell me, if in your opinion, if soft spots in the cabin sole are structural problems related to …

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What do I do about cracks in the deck?

We are planning to paint the deck and we were wondering if anyone can advise us regarding the paint, non-skid areas and the cracks. We want to sand the actual deck pattern and put normal anti-slip (it is already like this in the hatches area). Any advice, especially regarding the cracks on the deck? Thank …

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Stopping water leaks at the compression post?

When it rains we have water dribbling down the post which supports the mast. The mast rests on a bronze metal plate(step) with hinged U-shaped stainless line ‘keepers’. Then, the bronze plate rests on a 2 inch thick teak spacer. The teak spacer rests on a on a stainless plate, which rests on the deck. …

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Bow locker drains

Is it possible to install a thru-hull at the bow lockers so seawater can drain overboard without coming into the boat? Charlie Haskell (#066, Pinguescence). a. Our Corbin came with the bow lockers interconnected via a small hole in the separation nearest the bow and one drain on the port side. Works very well and …

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In making a deck repair, how can I duplicate the deck pattern?

Unfortunately, the coring on parts of my deck needed to be replaced and an additional unfortunate is that I hired the wrong guy to fix it. (See deck repair 1 and deck repair 2 .) Before I knew it he cut the deck up and tossed it and a long list of other incompetence’s. Should …

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Rudder repair and skeg repair?

Please also cross-reference to the FAQ entry on Keel Repairs as there is information in that FAQ entry which is equally relevant to Rudder & Skeg Repairs. Here is a 2021 article on Keel & Skeg Repairs that was collated in 2021: – download article as pdf (version without photos, 127kb) – download article as …

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Does this unusually open interior layout have enough deck support?

The question was posed regarding the layout of #189, Tangaroa V. The full set of responses is included here firstly because of the very clear and evidence-based response at the end from Marius Corbin that is both a ‘yes, it is OK’, and gives insight into the structural design of the Corbin 39. Secondly it …

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Inspecting a deck for water intrusion damage?

How to go about inspecting a deck for water intrusion damage? a. Saturation can be determined by a number of methods; a good source for information is Henry Mustin’s book, which if I remember correctly is called “Surveying Fiberglass Boats” or something like that. In this case the first sign was that the deck surface …

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Hull & deck moisture readings

I have a question with regards to my new Corbin 39, #042, Blondie Too. It was fairly badly scratched up topsides with Hurricane Katrina. I bought her and had her trucked to my home in Peterborough (ie. from warm to temperate climate). I recently had a friend who was a marine surveyor moisture metre it …

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Hull moisture readings ?

Two of our club members are planning to dry out their Corbins and then do bottom work, including epoxy barrier coatings. I may be a third member to do the same. 1. How much credence do you place in moisture readings? 2. What make and model of meter do you use? [Ed. Note: All fiberglass …

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How should I repair cracks in my deck?

I need advice regarding cracks on deck and how best to repair them. I fear water has soaked into the encased wood – plywood. I hope it will dry out while in Tunisia during the coming months. I have opened these cracks, which range from hair lines to almost 1/32″ in width, and have sealed …

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How should I paint my hull ?

a. The hull inside was painted with a Canadian two part epoxy called Endura but I am sure any epoxy paint would do. The worst job is the preparation, to grind the hull to get rid of the waxy coating on top of the fibreglass, if it is in the condition where it came from …

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Gelcoat cracks (2)

What should I do about those cracks in my gelcoat? Jeremy Parrett (#101, Pelican 1 / Two Pelicans) a. Gelcoat cracks Deck or Hull ???? Since the Corbin is not prone to flexing, the gelcoat cracks are purely cosmetic and largely due to excessive amount of the gelcoat material. Case in point. We have had …

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Gelcoat cracks (1)

What should I do about those cracks in my gelcoat? Jeremy Parrett (#101, Pelican 1 / Two Pelicans) a. Gelcoat cracks Deck or Hull ???? Since the Corbin is not prone to flexing, the gelcoat cracks are purely cosmetic and largely due to excessive amount of the gelcoat material. Case in point. We have had …

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