Catboats

Catboats Discussion Board
Topic: General Discussion

 
Original Message
Posted by:
Peter Anderegg
7/8/09 7:59:42 A
 
Subject: 0
My wife and I had an unsettling experience this past Monday when we sailed our catboat from Green Harbor (Falmouth) to Oak Bluffs on the Vineyard and back. At some point along the way our centerboard decided leave our company and dive to the ocean floor. There was no lurch or bang or expression of discontent of any kind before its departure; it just left without a word we're not sure where we went wrong. Fortunately, the wind was out of the south so our sail home was a beautiful downwind run. Now we're missing our centerboard. Does anyone have any experience with this sort of thing? How huge a problem is it to replace a Herreshoff centerboard? Thank you ahead of time for any responses.
Posted by: Roger J. File
7/10/09 8:41:46 P
244
Subject: Herreshoff catboat centerboard
I have an HA18 and replaced my centerboard a couple of years ago. The centerboard has a sort "hook" on the leading edge that hooks onto the pin in the centerboard trunk. The centerboard has to be inserted in the trunk and then swung forward so the hook can catch on the pin. The board has to go pretty far forward to make the connection. I don't know how yours could have swung forward especially if you were under way. Then the second question what happened to the cable? If the centerboard did become disatached the cable should have kept it from being lost. When I replaced mine I had a template for the board, I am not sure where it is now. I had mine made up of steel plate at a local metal fabrication shop. You may try to keep the thread going to see if anyone has that template.
Posted by: Peter Anderegg
7/14/09 1:17:55 P
244
Subject: Herreshoff catboat centerboard
The cable is still there, seemingly with its end caught in the aft section of the centerboard box because I can't retrieve it. (I had speculated that there might be a puley attached to the upper edge of the centerboard that 'floated' on the cable, thereby conferring mechanical advantage, but I guess I am wrong about that. I'm not an engineer and so I'm clueless about such speculations, although utter ignornace has never seemed to stop me from having opinions.) Anyway, your suggestion about a template is a good idea. My assistant's husband works in a machine shop and has said he can get the steel and cut out a centerboard if he had the pattern. Does anyone have plans or a pattern for a Herreshoff America 18?
Posted by: Roger J. File
7/21/09 7:49:21 P
244
Subject: Herreshoff catboat centerboard
I looked again for that template but could not find it, someone should have one. As far as the cable, mine is attached through a hole in the back side of the centerboard, the cable has a swag fitting, there is no pulley, it goes directly from the centerboard to the wheel at the top of the centerboard trunk. It sounds like your centerboard must have parted from the cable.