Thanks for the Voyage posts
Thank you Bill for the post on those voyages, I'll soak it up when I get home from work tonight. I think there is also a guy local to my area that sailed trans-atlantic or tanspac on a Pearson of smaller size, Triton or Ariel not sure. I already have people trying to talk me out of it. I've been dreaming about it since I was 16, hope I'm not too old at 53. Joshua Slocum left when he was 50+, of course he is(was) twenty times the sailor I am.
P.S. a couple of those came up blank
Rubba Dumpa - not so silly
A338 no longer has an OB well that has an original type lid.
For those of you that have this feature, including those with an inboard,
imco it is very possible that a oneway rubber valve could be worked into the lid/hatch cover.
Not my idea to use a duckbill valve to vacate water from a boat.
CRMarine has a small (1") duckbill (actually more like ducktail valve) for draining boats while underway.
Mixed reviews. Looks to me like the valve is just too small.
DUCKBILL CHECK VALVE
OK, go to www.general-rubber.com and take a look at their Flex-Valve 4200 Flanged.
And the 4100 Slip-on that can be hose clamped to pipe.
Valve comes in sizes from 1/2" to 48".....yes, FOUR FEET ! Might find something that would fit thru
the well hatch. I think we're looking for a not your normal everyday valve.
Can see a useful dump valve around 4" - 5" - 6" larger or smaller.....(haven't done the valve volume math.)
Depends on whether you see the OB well as a primary exit for automatic transfer whole cockpit draining.
Getting rid of tons of water quickly is something a cruiser might be thinking about.
Have not seen or held these particular valves. The color data sheet makes the valve's proportion look right, imco.
They are designed to open with very little pressure - which is what we want.
And to work against seawater backflow they'd probably have to be somewhat pliable and stay closed easily.
Come in many natural & synthetic rubbers, I like EPDM or Hypalon.
If you design any part of a dump system that has the rubber duckbill underwater,
would guess you want to keep marine growth at bay. EPDM can't be painted, but airboat antifouling is available.
Good thing about mounting one or two of these things in a lid, is that you can access them for
inspection and maintenance. EPDM would require almost no maintenance. Maybe Lanocote like they do propellers.
Smaller flex-valves might be good for any exit out the hull. Unsightly, but since
rubber duckbills do an important job simply and maybe cheaply, they might become fashionable!
Sorry, haven't priced them.
.................................................. .................................................. .................................................. ...............
:DKICKER-SLICKER
Seems to me, if we have an OB in the motor well, we might find just the right sized duckbill for the WHOLE OB
lower section and propeller (12"?) to fit thru into the water. And when retrieved - by merely pulling the motor
back up thru the gland - it would close and nicely keep water out of the laz.
And still be available for sudden evacuation events !
Maybe add a modified circular Prop-Gard around the blades to get the OB to ease back up?
[Larger sized sleeve valves get very heavy, so while the idea is interesting at least to me, it's not feasible....yet.]