On Fri, Apr 19, 2019 at 10:44 AM vpointcafe@gmail.com [harryproa] <harryproa@yahoogroups.com.au> wrote:
Hello everyone. I'm David from Vancouver, Canada. I'm a sailor, and I have fooled around with composites for fun and repairs, but not yet much of a builder or designer.
Welcome to the group.
Rob, congratulations on the E25. It looks very sharp in that rendering done by Steinar.
Thanks. It certainly does.
Any rough estimate of cost of materials for the E25?
Depends where you buy them. We are getting high quality materials from China for less than half what we pay locally, but they won't supply part rolls, so it may not be worth it for a small boat. I have attached the materials list from the first page of the plans.
Some thoughts on the rudder assemblies:1) I can't tell what you mean by telescoping - are you thinking of dagger-board style blade inside a cassette?
No. A fixed part of the rudder in the water, with a telescoping part sliding inside it.
2) If so, the tillers could be wishbone style so that they could flip over the (at least partially) raised board when shunting.
True.
Doug,
If you made an E25 or another of the lightest Harrys it should be possible to retro fit the addition of foils on later.
No need to specialize in a fixed - foil or not foil - type.
Agreed
I think Rob said he had a slip on T section on to existing rudders, removeable?
Yes. A better option would be an insert into the sheer web of the rudder. It should be removable, but more importantly, it should fall off if the rudder kicks up. Otherwise something breaks.
The rudders and brackets are already very strong.
Should not need extra support?
Most of the support is sideways/fore and aft. We would probably do it a bit differently for foils.
Would need both rudders LW hull down always. And the rudders like on E25 that turn round other way after shunt.
No problem if the foils were on the bottom of the rudders so they turned as well. Something like the Volvo proa
WW foil? Dunno.
Probably not for a beach proa. Should be able to fly the ww hull and keep it flying with sheet, helm and crew movement.
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Posted by: Rob Denney <harryproa@gmail.com>
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