Subject: [harryproa] Flat bottom hulls? |
From: "markm@snowgum.com [harryproa]" |
Date: 10/9/2018, 8:14 PM |
To: <harryproa@yahoogroups.com.au> |
Reply-to: harryproa@yahoogroups.com.au |
Hi Rob,
I was going to send you these questions directly, but imagine there are others on the list who might have similar questions.
I like the simplicity of the flat bottom hulls, but only ever having had boats with round bilges, was wondering what the trade-offs were? The plusses I see with no floorboards are: easier construction, lighter weight, generally simpler. The questions I had were around:
- do you normally add kevlar or other "tougher" reinforcement to the laminate schedule for the bottoms?
- any issues with blocking on the hard with the wide flat panels on the bottom? I assume you want to make sure the load is taken on the edges where the sides meet the bottom?
- any issues with lifting? Thinking about the bigger HarryProa's, I assume it is almost always a crane with spreaders and straps? Would it be worth building some lifting eyes in where the beams attach to the hulls?
- I'm guessing if you needed thru-hulls, you would want to surround them with bulkheads/panels that were at least as high as the water level to contain any water in case of leaks or maintenance challenges
- Bilge pumps would still be needed in case of a catastrophe but would not be hidden under floorboards
- I assume there is not reason you can't finish the interior floor with a laminate or some other surface to make it look more "homely"
Mark.
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