Hello Rob,   Have you added the bulkheads to the plans for the 12 M Harryproa ?  Are there any 12 M  currently under construction with foam core and how will this affect the construction and strength of hull as compared the the wood core ?  I would think that the wood would be heavier but stronger than the foam core so I am surprized Arura had this type of problem.  What measures are designed into a foam core to give it the needed strength ?    Were the bulkheads on the original plans and the plans were not followed or are they a added addition that had not been installed yet ?       Happy sailing, George Kuck Chestertown, Md. --- On Fri, 9/11/09, Rob Denney <harryproa@gmail.com> wrote: From: Rob Denney <harryproa@gmail.com> Subject: [harryproa] Aroha To: harryproa@yahoogroups.com.au Date: Friday, September 11, 2009, 11:15 PM   G'day, This from another forum, posted by Mark Stephens, who helped build Aroha. The12m had some weather 8hrs east of Lord Howe and broke some gear, put out parachute for 36 hrs till it calmed down enough to do repairs. 250 miles out from Lord Howe leeward hull started flexing a lot in a beam sea, solved the problem temporarly by using the jib halyard as shroud and tightened it with the winch and did the rest of the trip with the main with 1 and 2 reefs in, had to baby it. He's going to try solid bulkheads at beams and same at mast. end quote Before they left, Bain asked me about reinforcing the lee hull. I advised him to fit full bulkheads, which should have been in from the start for stiffness and watertightness reasons. As far as I know, he decided to just add more laminate to the hull. I have asked Mark for more details of the weather and the gear that broke, will let you know what I hear. regards, Rob

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