Very helpful, Ken! Thank you very much, Bruce Whitmore
Sent from my Verizon, Samsung Galaxy smartphone -------- Original message --------From: Ken Heaton via CnC-List <[email protected]> Date: 4/11/18 5:20 AM (GMT-08:00) To: cnc-list <[email protected]> Cc: Ken Heaton <[email protected]> Subject: Re: Stus-List Mast step stringers Part 2 Hi Brian, The 'stringers' you refer to are the Structural Floors I think. Those drawings can be downloaded from the links provided. They are big, about 3' by 4' so it is best to download them and view them in a pdf viewer that will let you zoom way in. There is a detail on those drawings as follows: STRUCTURAL FLOORS1. 2 LAYERS KEVLAR HYBRID2. 1 LAYER KEVLAR HYBRID ON TOP ONLY3. 3 LAYERS OF 18oz./1oz. FABMAT Here is a link to that detail from the Construction Drawing: https://3.bp.blogspot.com/-ZlxOeqGWYe0/Ws39SyZcQGI/AAAAAAAB1fc/0fUCvVSqzqYEHiiwFZ67HeLvKyk0Lsr1gCLcBGAs/s1600/Construction%2BDetail%2Bfor%2Bthe%2B37%252B%2BMay%2B28%252C%2B1988-1.jpg Ken H. On 11 April 2018 at 06:27, Ken Heaton <[email protected]> wrote: Hello Brian, I would be very surprised to find there was any wood inside the 'stringers' on a C&C 37/40. There is no mention of wood used in any part of this boat's construction anywhere (except in the sole, in bulkheads and cabinetry) in any documents I have see for these hulls. I was sure the `stringers` were either completely hollow or there was perhaps foam inside, but only to hold their shape while they are tabbbed to the hull on initial construction. One `stringer` just aft of the two that support the mast step, has a large hole drilled in the top to access a keel bolt. It is completely hollow. Here is a link to the construction drawing for that hull: Here: https://drive.google.com/file/d/0B7X4Y5iVFYAKYTJxRDJBc3BvLWM/view?usp=sharing and here: https://drive.google.com/file/d/0B7X4Y5iVFYAKcDd4ZlhWNGZzdmM/view?usp=sharing Ken H. On 10 April 2018 at 22:37, Brian Fry via CnC-List <[email protected]> wrote: 1993 37/40. Redoing the rod rigging, mast is down. Removed the aluminum mast step to media blast and powder coat. There are three `stringers` the mast step sits on. The forward and aft stringers,which the step is bolted to, are bulging. Tapping on them reveals a delamination inside.I am thinking this is caused by forces from the adjustable mast crushing the laminate wood inside. The bay this is in is too high to be caused by water intrusion.Anyone else experiencing this? The plan is to drill holes and inject epoxy, then bolt on a suupport piece of 1/2" aluminum across the face, bolted into the solid parts of the stringer. Any input is welcome. S/V La Neige 1993 C&C 37/40 XL Havre de Grace , MD FB blog : thenext14years Brian and Manon _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
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