What I said here is wrong- I forgot the enormous difference in speed between the tip of a breaking wave and the water underneath it. Tyler
On May 15, 2015, at 12:17 PM, Tyler Backman <casioqv@usermail.com> wrote:
Just some 'bench sailing' here-
Any sheer force on the hatch while a boat is turned turtle would come from the difference in speed between the boat and the water. I doubt this would be much on a boat that only weighs 1400lbs and has it's rig already submerged. The biggest risk would be ripping off a chainplate at the moment the sails submerge. The rig strength to displacement ratio of an M15/M17 is far greater than on large bluewater boats.
Tyler
On May 15, 2015, at 11:17 AM, Dave Scobie <scoobscobie@gmail.com> wrote:
the running backstays on that M15 were added to provide more support to the standing rig as she was running in the tradewinds.
the M15 & M17 don't have sea hoods (one of many reasons whey the are not blue water 'rated' boats).
watertight cabin on Strawanza
the hatch on Strawanza is a good solution to assure you have 'flotation' in the form of a dry cabin ... though i've always wondered in the deck structure was modified to assure there was enough strength to support the hatch? just putting a watertight hatch on standard layup (1/8") could result in the hatch frame being ripped out of the bulkhead if the boat is pooped/rolled.