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Title: Plank - Fiberglass added stiffness Post by: Breizhglace on November 15, 2021, 09:43:53 AM Hi group,
I apologize if the topic was already covered. (I know Warren was looking for the info a while back) I would like to know how much stiffness is going to be added by wrapping fiberglass on the plank. For now, I plan to wrap the entire plank, plus an additional 4 feet center section, with a 4" overlap in the bottom section. Current deflection of the plank is 45 mm (1"3/4) with skippers weight Thanks a lot, Nic Title: Re: Plank - Fiberglass added stiffness Post by: Bob Gray on November 15, 2021, 08:33:29 PM It will probably stiffen it 3 or 4 pounds per inch.
Title: Re: Plank - Fiberglass added stiffness Post by: Breizhglace on November 19, 2021, 08:54:22 PM Thanks a lot Bob!
Title: Re: Plank - Fiberglass added stiffness Post by: wnethercote on November 23, 2021, 01:35:51 PM I am probably too late to stop you, but 1 3/4 inches deflection under your weight is the recommended standard deflection for a plank. Why do you want to make it stiffer? I may make your DN harder to sail, although some do like a twitchy boat.
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