Re: [bolger] Re: Lapstrake

I agree completely.  The problem is that you would need to essentially redesign the structure of the hull and this is not trivial.

Walter wrote:

--- Inbolger@yahoogroups.com, "Christopher C. Wetherill"<wetherillc@...>wrote:

Bear in mind that Chebacco is designed for _glued_ lapstrake.  This 
construction style is dependent on the plywood for stability.  I suspect 
building this style with sawn planks would lead to failure along the 
grain.  Why not look for a design that uses strip construction?

V/R
Chris

I think that if you built  a Chebacco using traditional lapstrake construction, you would have to add framing. In traditional lapstrake construction, especially in round bilged dories such as the Swampscott, there are several sawn frames which define the shape of the boat. The boat is planked up around these frames, then intermediate bent frames are added between the sawn frames. I see no reason why this style of construction couldn't be used for a Chebacco. It has been successful for a hundred years or so. John Gardner's "Dory Book" has an excellent description of the technique.

--- Inbolger@yahoogroups.com, "Christopher C. Wetherill" <wetherillc@...> wrote:

>
> Bear in mind that Chebacco is designed for _glued_ lapstrake. This
> construction style is dependent on the plywood for stability. I suspect
> building this style with sawn planks would lead to failure along the
> grain. Why not look for a design that uses strip construction?
>
> V/R
> Chris

I think that if you built a Chebacco using traditional lapstrake construction, you would have to add framing. In traditional lapstrake construction, especially in round bilged dories such as the Swampscott, there are several sawn frames which define the shape of the boat. The boat is planked up around these frames, then intermediate bent frames are added between the sawn frames. I see no reason why this style of construction couldn't be used for a Chebacco. It has been successful for a hundred years or so. John Gardner's "Dory Book" has an excellent description of the technique.

Bear in mind that Chebacco is designed forgluedlapstrake.  This construction style is dependent on the plywood for stability.  I suspect building this style with sawn planks would lead to failure along the grain.  Why not look for a design that uses strip construction?

V/R
Chris

prairiedog2332 wrote:

A Chebacco 25 with added off-shore pilot house that Susanne designed for
the regular Chebacco would be awesome!

Nels

--- Inbolger@yahoogroups.com, Wilderness Voice<thewildernessvoice@...>wrote:

I would think that steel would not be a suitable material for a micro

or long micro. I was a steel boatbuilder for 3 decades, but not
designer. Generally steel is good for larger boats esp sailboats. There
are plans for a lapstrake Cheebacco and if I were considering a long
micro, I would instead take a long look at that design which is designed
for lapstrake construction. Harold Payson's latest book has information
about it, but the plans are avalable from Phil Bolger

A Chebacco 25 with added off-shore pilot house that Susanne designed for
the regular Chebacco would be awesome!

Nels

--- Inbolger@yahoogroups.com, Wilderness Voice <thewildernessvoice@...>
wrote:

>
> I would think that steel would not be a suitable material for a micro

or long micro. I was a steel boatbuilder for 3 decades, but not
designer. Generally steel is good for larger boats esp sailboats. There
are plans for a lapstrake Cheebacco and if I were considering a long
micro, I would instead take a long look at that design which is designed
for lapstrake construction. Harold Payson's latest book has information
about it, but the plans are avalable from Phil Bolger

>