Hi

"VG" skrev i en meddelelse
...
what are the limits of plywood boats ?

I am interested in kind of ultralight (25000# to 32000# light) trawler in
the 42-50 feet range, of displacement type, not semi displacement. No intend
to exceed hull speed. So single engine could be in 100-120 hp range.

Go check the "Trawler" folder in this link ;

http://groups.yahoo.com/group/Cyber-...ngboat-5meter/

When you realise that this is just the building system that you need, as you
simply cut an assembly framework from simple sheet material, you can decide what
sheet material you want to use. You shuld also consider a type of boatplans ,
that offer full-scale plans as then you can simply spray glue the full-scale
drawings onto the sheets to form the frame assembly, and cut it from the lines
on the drawings directly, with a jigsaw.
Ask plans that offer the option of an easy scale model : Cyber-Boat do just
that.

Now there are a lot of amature builders in this fora, that will opose these
facts and ride their own Pony , ------- guess there are a real reson why true
new designs and refreshing new building methods is so rare ; there simply is a
crowd of usenet trolls that can't bear the idear that skilled craftmen build a
boat, in a different way than their father once did, and who instantly will pick
on any new idear challancing 70 year old plywood designs. As when it been
difficult for you to find what you been looking, there is a reson for that, and
if it was not for that reson, boatbuilders and designers could make their bread
for themself and their family . But still there are remains of great idears ,
different than the Pony's you se in this fora , you se boatplans is a buisness
even it is one stuck in conservatism and protectivism. There are Designs that is
not 80 year old and building methods that is easyer than fiddeling with 200 year
old concepts ; well you are sitting behind a computer screen, then why not open
your mind and realise that there acturly are methods, that will allow any
amature to get a beautifull sailboat or Trawler, at a third the cost, and four
times as strong , just by cutting along the lines of a full-scale drawing,
glued onto the plywood sheets.
Beside realising that a boat hull can be a beautifull thing, even Usenet Trolls
just hate the sight of any skilled "Hippie" who think this old craft shuld be
able to survive and be the platform for new exiting building technikes.
Then cover it with glasfiber if that is what you want to spend, if you get the
Trawler you dream .
Other Cyber-Boat free-download sites ;
http://groups.yahoo.com/group/Cyber-Boat/
http://groups.yahoo.com/group/Cyber-Boat-boatplans/
http://groups.yahoo.com/group/CyberBoat/
http://groups.yahoo.com/group/cyber-boat-partners/

P.C.
P.s.
I already had enough discussing these matters in this fora, and any response
from the useal Troll crowd will not be responded. -------- Paper plans work and
boats can be nice and easily build, try it some day.