Thomas,
What read is only partly correct.
The hull was very carefully shaped from a precisely laminated piece so
the wook changed at the waterplanes, once shaped and sold, the half-hull
was sawed at at the stations so frames could be made. They only did one
side and mirrored the other side.
It might not have been a paper set of plans, but they sure were not
flying blind.
The rig was often drawn out after the hull was sold so the spar bulders
and sailmakes could get started. That might have been on paper or even
in one case I know of - a couple of very thin pine planks that were only
discovered later because sail plan became a teh undrside of a table.
Matt Colie
Lifelong Waterman, Licensed Mariner and Congenital Sailor

Thomas Wentworth wrote:

I happened to read this weekend that the Clipper Ships of Portsmouth NH were
built without plans.

The shipbuilder did it all in his head.

So much for arguments about plans, etc.

=====================


"GK" wrote in message ...

I am considering to build a Bruce Roberts 370 D.
I have read some pro´s and contra´s concerning his design.
What is your opinion ?

concerning the prices: My very personal opinion is that
the cutting files for the 370 D (!) for about US$ 8 T are overpriced,
as well as to buy the precut steel for about US$ 30 T, only the steel
precut, not the complete steel caso.

I have an offer from a (professional) shipyard which offers me to build
the caso,
based on the 370 D study plans, for less.
What is your opinion about this ?
Is this possible from the technical point of view ?

Thanks,

Fred

I think he's also ignoring the process of lofting; i.e., drawing the plans
full size on a floor where bevels can be lifted and transfer staffs marked.
Hard to see the difference between this and drawing plans on paper at
reduced scale.

Paper is really a very unsuitable medium for plans. Before Mylar became
available, vellum was the standard.

Roger (three years of drafting classes so I could draw logic diagrams that
really didn't have to be dimensionally stable)

http://home.insightbb.com/~derbyrm

"Matt Colie" wrote in message
...
Thomas,
What read is only partly correct.
The hull was very carefully shaped from a precisely laminated piece so the
wook changed at the waterplanes, once shaped and sold, the half-hull was
sawed at at the stations so frames could be made. They
only did one side and mirrored the other side. It might not have been
a paper set of plans, but they sure were not flying blind.

The rig was often drawn out after the hull was sold so the spar bulders
and sailmakes could get started. That might have been on paper or even in
one case I know of - a couple of very thin pine planks that were only
discovered later because sail plan became a teh undrside of a table.

Matt Colie
Lifelong Waterman, Licensed Mariner and Congenital Sailor

Thomas Wentworth wrote:

I happened to read this weekend that the Clipper Ships of Portsmouth NH
were built without plans.

The shipbuilder did it all in his head.

So much for arguments about plans, etc.

=====================


"GK" wrote in message ...

I am considering to build a Bruce Roberts 370 D.
I have read some pro´s and contra´s concerning his design.
What is your opinion ?

concerning the prices: My very personal opinion is that
the cutting files for the 370 D (!) for about US$ 8 T are overpriced,
as well as to buy the precut steel for about US$ 30 T, only the steel
precut, not the complete steel caso.

I have an offer from a (professional) shipyard which offers me to build
the caso,
based on the 370 D study plans, for less.
What is your opinion about this ?
Is this possible from the technical point of view ?

Thanks,

Fred