Re: double ender in sheet plywood?

--- Inbolger@yahoogroups.com, "John and Kathy Trussell" <jtrussell2@...> wrote:
>
> In this country, most designers have plans for double enders in the 15 foot...................

> Stitch and glue construction produces a hull which requires little framing
> or spiling and the hull goes together quickly. However, the looseness of
> the assembly method means that the finished hull may differ somewhat from
> the designer's lines and it is often difficult to maintain fair lines where
> the panels come together. Moreover, stitch and glue boats require a lot of
> sanding and filling to achieve a decent finish. This task is complicated by
> the size of the boat as increased size means an increased area to sand and
> bigger boats require the sander to get inside the boat. Particularly for a
> bigger boat, I think that glued lapstrake plywood built over molds is a
> better way to go, particularly if you clean up squeeze out as it occurs.
>
>
>
> JohnT
>


Thank you John.

Good points to think about.
--- Inbolger@yahoogroups.com, "Myles J. Swift" <mswift@...> wrote:
>
> Depending on what you are looking for the initial stability of the Caledonia
> is not like a flat bottomed Bolger design. I talked to a guy who built one
> and sails in the Salish. His only objection was that you were well heeled
> most of the time. The Caledonia was high on my list before I spent a couple
> of hours with an owner. Now I usually sail alone so some something smaller
> works for me.
>
>
>
> MylesJ
>
Thanks for the comments.
No " sailing on it`s ear " for me I`m afraid , no matter how goodit looks.

Depending on what you are looking for the initial stability of the Caledonia is not like a flat bottomed Bolger design. I talked to a guy who built one and sails in the Salish. His only objection was that you were well heeled most of the time. The Caledonia was high on my list before I spent a couple of hours with an owner. Now I usually sail alone so some something smaller works for me.

 

MylesJ

Doug wrote:
> Not a Bolger, but check out Iain Oughtred's Caledonia Yawl. It fits your bill if you can consider glued lapstrake equivalent to multi-chine. See:
>
>http://www.jordanboats.co.uk/JB/IainO_Catalogue/Caledonia%20Yawl.pdf

Tom Regan at Grapeview Point Boat Works has built several Caledonia
Yawls. He'd be a good resource if you're considering one.

http://www.grapeviewpointboatworks.com/
Day sailing requires a boat that is easy to launch and begin sailing with. If the boat is too big for two not very strong people to put on a car roof it must be trailered. (I have a friend who finds it easier to trailer his 35# kayak.) Once you are trailering it doesn't matter how "big" the boat is up to the point of needing a bigger tow vehicle. Bolger designed boats that are easy to get under way. Bird watcher and Whale Watcher are easy to get underway. There are much "smaller" boats that are much more difficult to get under way. Once on the water the longer boat will sail faster, perhaps "better", and the extra room and protection from the elements will be much appreciated. Ease of daysailing has much more to do with design than "size". Bolger understood day sail trailer sailing, and his designs are far better than some others meant for the same thing.
Eric

--- Inbolger@yahoogroups.com, "hs" <hardystein2004@...> wrote:
>
>
>
> --- Inbolger@yahoogroups.com, "daschultz2000" <daschultz8275@> wrote:
> >
> >
> > Birdwatcher? May be very good for the nervous passenger.
> >
> > >
> > > Double ended plywood seems to have been totally overlooked , ( or avoided ? ) by designers it seems.There maybe a good reason for that , but I fail to see it .
> > >
> >
>
>
> Hmmm....I had only considered an open boat, for daysailing.
> Birdwatcher is a little large too.
>
> Jim Michalak draws smaller boats with Birdwatcher type of house.
> It`s all too hard ....:)
>

In this country, most designers have plans for double enders in the 15 foot range. In part this is due to the fact that a 15-16 ft boat is a pretty good size for a single hander or up to a couple and a child; mostly it’s because plywood comes in 8 ft. sheets and a 16 gt plank can be produces with a single but joint/scarf.

 

Additional butt joints/scarfs allow longer boats and in the rest of the world, longer plywood boats are more common. Swallow Boats sells kits for a Storm 17 and Storm 19 which might meet your needs.  John Wellsford and Selway Fisher also offer plans for bigger double enders (plans available from Duckworks). 

 

Stitch and glue construction produces a hull which requires little framing or spiling and the hull goes together quickly.  However, the looseness of the assembly method means that the finished hull may differ somewhat from the designer’s lines and it is often difficult to maintain fair lines where the panels come together. Moreover, stitch and glue boats require a lot of sanding and filling to achieve a decent finish. This task is complicated by the size of the boat as increased size means an increased area to sand and bigger boats require the sander to get inside the boat.  Particularly for a bigger boat, I think that glued lapstrake plywood built over molds is a better way to go, particularly if you clean up squeeze out as it occurs.

 

JohnT

 

From:bolger@yahoogroups.com [mailto: bolger@yahoogroups.com ]On Behalf OfDoug
Sent:Friday, June 18, 2010 5:25 PM
To:bolger@yahoogroups.com
Subject:[bolger] Re: double ender in sheet plywood?

 

 

Not a Bolger, but check out Iain Oughtred's Caledonia Yawl. It fits your bill if you can consider glued lapstrake equivalent to multi-chine. See:

http://www.jordanboats.co.uk/JB/IainO_Catalogue/Caledonia%20Yawl.pdf

--- Inbolger@yahoogroups.com, "hs" <hardystein2004@...> wrote:

>
> Hello
>
> Does anyone know of a PB&F double ended design for multi chine plywood
for sail , trailerable around 16 - 20 ft ?
>
> Best regards Harry.
>

--- Inbolger@yahoogroups.com, "Doug" <oarman89@...> wrote:
>
> Not a Bolger, but check out Iain Oughtred's Caledonia Yawl. It fits your bill if you can consider glued lapstrake equivalent to multi-chine. See:
>
>http://www.jordanboats.co.uk/JB/IainO_Catalogue/Caledonia%20Yawl.pdf
>
> --- Inbolger@yahoogroups.com, "hs" <hardystein2004@> wrote:
> >
> > Hello
> >
> > Does anyone know of a PB&F double ended design for multi chine plywood for sail , trailerable around 16 - 20 ft ?
> >
> > Best regards Harry.
> >
>
Have built ply on frame , S&G , even strip , but never Lapstrake or is that ( Lapstreak?) .I don`t know ...looks more difficult ?

Does Oughtred provide panel shapes without lofting ?
Small errors in lining off could look bad I think.Ian is gifted , he has a good eye.His boats are elegant and beautiful.They have to be done " right".
--- Inbolger@yahoogroups.com, "daschultz2000" <daschultz8275@...> wrote:
>
>
> Birdwatcher? May be very good for the nervous passenger.
>
> >
> > Double ended plywood seems to have been totally overlooked , ( or avoided ? ) by designers it seems.There maybe a good reason for that , but I fail to see it .
> >
>


Hmmm....I had only considered an open boat, for daysailing.
Birdwatcher is a little large too.

Jim Michalak draws smaller boats with Birdwatcher type of house.
It`s all too hard ....:)
Not a Bolger, but check out Iain Oughtred's Caledonia Yawl. It fits your bill if you can consider glued lapstrake equivalent to multi-chine. See:

http://www.jordanboats.co.uk/JB/IainO_Catalogue/Caledonia%20Yawl.pdf

--- Inbolger@yahoogroups.com, "hs" <hardystein2004@...> wrote:
>
> Hello
>
> Does anyone know of a PB&F double ended design for multi chine plywood for sail , trailerable around 16 - 20 ft ?
>
> Best regards Harry.
>
Birdwatcher? May be very good for the nervous passenger.

>
> Double ended plywood seems to have been totally overlooked , ( or avoided ? ) by designers it seems.There maybe a good reason for that , but I fail to see it .
>
--- Inbolger@yahoogroups.com, "Christopher C. Wetherill" <wetherillc@...> wrote:
>
> Another near miss at 15 feet is Sweet Pea Double ended with 2 chines.
> The plus side of being less than 16 feet is that each panel has only one
> but joint.
>
> Both are available here: Instantboats.com
> <http://www.instantboats.com/boats.html>
>
> V/R
> Chris
>


Hello Chris , yes ,near miss ... nice , but a little smaller than I hoped for.

Looks a little tender , I have a non - sailing soul mate that gets nervous in tender boats ...:)

I wonder what the result would be if you scaled Sweet Pea up , to maybe 18 ft and added some ( water ?) ballast ?

Double ended plywood seems to have been totally overlooked , ( or avoided ? ) by designers it seems.There maybe a good reason for that , but I fail to see it .
--- Inbolger@yahoogroups.com, "futabachan" <futabachan@...> wrote:

> If you're not wedded to multiple chines, the SHS fits that brief precisely. 19'6" double-ender in plywood, trailers easily, but single chine.
>


Thank you .
Yes nice boat but I really would like that extra chine , (for a slightly deeper , " sit in " not " on " kind of boat.)
Bench seat required for the knees ...Getting older afraid...

Size is right.
Another near miss at 15 feet is Sweet Pea Double ended with 2 chines.  The plus side of being less than 16 feet is that each panel has only one but joint.

Both are available here:Instantboats.com

V/R
Chris

On 6/17/2010 1:24 PM, futabachan wrote:
--- Inbolger@yahoogroups.com, "hs"<hardystein2004@...>wrote:
Does anyone know of a PB&F  double ended  design for  multi chine 
plywood  for sail , trailerable around 16 - 20 ft ?
If you're not wedded to multiple chines, the SHS fits that brief precisely.  19'6" double-ender in plywood, trailers easily, but single chine.
--- Inbolger@yahoogroups.com, "hs" <hardystein2004@...> wrote:
>
> Does anyone know of a PB&F double ended design for multi chine
> plywood for sail , trailerable around 16 - 20 ft ?

If you're not wedded to multiple chines, the SHS fits that brief precisely. 19'6" double-ender in plywood, trailers easily, but single chine.
Hello

Does anyone know of a PB&F double ended design for multi chine plywood for sail , trailerable around 16 - 20 ft ?

Best regards Harry.