hello everybody,

how do you suggest me to build a catamaran of about 3meters long that will
be used with remotecontrol for monitoring.

i was thinking about a wooden shape covered with some kind of fiberglass ...
but i dont know what wood or epoxy or whatever to use.
it should be most of all resistant. lightness is not primary....

thank you for suggestions and excuse me for my bad english.
matthias

"Matthias Broersma" wrote in message .. .
hello everybody,

how do you suggest me to build a catamaran of about 3meters long that will
be used with remotecontrol for monitoring.

i was thinking about a wooden shape covered with some kind of fiberglass ...
but i dont know what wood or epoxy or whatever to use.
it should be most of all resistant. lightness is not primary....

thank you for suggestions and excuse me for my bad english.
matthias

Cataraman.Ok.3meters=9'?Ok.Remotecontrol.Ok
it should be most of all resistant.???To whom or what?
thank you.Ok.Excuse me.Maybe.

the remotecontrol part i allready taken care of... plans are ready for servo
control with a smallform motherboard.
with resistant i mean it should not break to easy... i would like a solid
structure.




"Sam" wrote in message
om...
"Matthias Broersma" wrote in message
.. .
hello everybody,

how do you suggest me to build a catamaran of about 3meters long that
will
be used with remotecontrol for monitoring.

i was thinking about a wooden shape covered with some kind of fiberglass
....
but i dont know what wood or epoxy or whatever to use.
it should be most of all resistant. lightness is not primary....

thank you for suggestions and excuse me for my bad english.
matthias

Cataraman.Ok.3meters=9'?Ok.Remotecontrol.Ok
it should be most of all resistant.???To whom or what?
thank you.Ok.Excuse me.Maybe.

Try the tunnel mite on htpp://www.glenl.com

Matthias Broersma wrote:
the remotecontrol part i allready taken care of... plans are ready for servo
control with a smallform motherboard.
with resistant i mean it should not break to easy... i would like a solid
structure.




"Sam" wrote in message
om...

"Matthias Broersma" wrote in message

.. .

hello everybody,

how do you suggest me to build a catamaran of about 3meters long that

will

be used with remotecontrol for monitoring.

i was thinking about a wooden shape covered with some kind of fiberglass

...

but i dont know what wood or epoxy or whatever to use.
it should be most of all resistant. lightness is not primary....

thank you for suggestions and excuse me for my bad english.
matthias

Cataraman.Ok.3meters=9'?Ok.Remotecontrol.Ok
it should be most of all resistant.???To whom or what?
thank you.Ok.Excuse me.Maybe.

"Matthias Broersma" ) writes:
hello everybody,

how do you suggest me to build a catamaran of about 3meters long that will
be used with remotecontrol for monitoring.

plywood is cheap, strong, simple to work with, and quick to build.


i was thinking about a wooden shape covered with some kind of fiberglass ...
but i dont know what wood or epoxy or whatever to use.
it should be most of all resistant. lightness is not primary....

if this is for a short term project, then painted plywood is good. if the
boat will be rubbing on anything, then add one or two thin strips of wood
to the outside to protect the plywood. make sure the edges of the plywood
are well sealed so they don't absorb water through the end grain. I'd only
cover with fibreglass for longevity. take a look at the Loonie and Delta
on my website (see below) to see what's possible. you have to know how
much weight the boat must float and calculate the volume of hull needed
to float that weight.


thank you for suggestions and excuse me for my bad english.
matthias




--
------------------------------------------------------------------------------
William R Watt National Capital FreeNet Ottawa's free community network
homepage: www.ncf.ca/~ag384/top.htm
warning: non-freenet email must have "notspam" in subject or it's returned

how thin (i hope it is like that it should be written) can plywood be found?
and if i fave a rather complex shape, is it easy to 'bend' it?
what should i use as coating for protection?
thanks
and have a good evening.
matthias


"William R. Watt" wrote in message
...
"Matthias Broersma" ) writes:
hello everybody,

how do you suggest me to build a catamaran of about 3meters long that
will
be used with remotecontrol for monitoring.

plywood is cheap, strong, simple to work with, and quick to build.


i was thinking about a wooden shape covered with some kind of fiberglass
....
but i dont know what wood or epoxy or whatever to use.
it should be most of all resistant. lightness is not primary....

if this is for a short term project, then painted plywood is good. if the
boat will be rubbing on anything, then add one or two thin strips of wood
to the outside to protect the plywood. make sure the edges of the plywood
are well sealed so they don't absorb water through the end grain. I'd only
cover with fibreglass for longevity. take a look at the Loonie and Delta
on my website (see below) to see what's possible. you have to know how
much weight the boat must float and calculate the volume of hull needed
to float that weight.


thank you for suggestions and excuse me for my bad english.
matthias




--
--------------------------------------------------------------------------
----
William R Watt National Capital FreeNet Ottawa's free community
network
homepage: www.ncf.ca/~ag384/top.htm
warning: non-freenet email must have "notspam" in subject or it's returned

"Matthias Broersma" (matthias.broersmaATNOSPAMPLEASEfastwebnet.it) writes:
how thin (i hope it is like that it should be written) can plywood be found?

3-4 mm

and if i fave a rather complex shape, is it easy to 'bend' it?

numbers vary. I have some raduis of curvature numbers from John Stewart's
book on my website under "Boats" (see below) but I've seen different
numbers in another book. I've seen plywood standards websites mentioned in
this newsgroup. maybe if you email the manufacturer they will know the
bending raduis of what they make. you can also find at the same place on
my website formulae for calculating radius of curvature and a Basic
program for calculating beam camber which also displays the raduis of
curvature.

what should i use as coating for protection?

first seal all the edges well with resin such as polyester or epoxy to
keep water from getting into the end grain. what you do after that depends
on how long the boat will be in the water and on how long you want the
boat to last. for a boat that's only in the water for a few hours at a
time I make sure the edges are well sealed and then just paint. some
people also fibreglass the seams and then paint. other people fibreglass
all of the outside which will be under water and paint. some people
fibreglass the whole outside and paint. other people fibreglass both the
outside and the inside of the hull and paint.

thanks
and have a good evening.
matthias

there are also three kinds of plywood. the first kind "interior" made
without waterproof glue is usually not recommended unless you cover all
the plywood with fibreglass to keep it from ever getting wet. the second
kind "exterior" made with waterproof glue for house construction can last
10-15 years on a boat hull. the third kind "marine" made to a better
standard costs a lot more but can last 25 years on a boat hull. plywood
which has been completey sealed with a lot of fibreglass can last
indefinitely on a boat hull but that costs more and the boat will be
heavier than a boat without all the fibreglass on it.

--
------------------------------------------------------------------------------
William R Watt National Capital FreeNet Ottawa's free community network
homepage: www.ncf.ca/~ag384/top.htm
warning: non-freenet email must have "notspam" in subject or it's returned

i have a friend that works in repairing old wooden boats, and i talked to
him a few month ago (we live far away from each other) and he was talking
about a paint that was i think epoxy based. it was with 2 components, no
need of fiberglass, i would have given it a coating better then paint, and
also the structure would gain in strength...it was i think expensive but a
very light solution.
i just cant remember what kind of stuff it was...i am trying to reach my
friend...but nada...no answer..mmm...
thanks for te information William.
matthias


"William R. Watt" wrote in message
...
"Matthias Broersma" (matthias.broersmaATNOSPAMPLEASEfastwebnet.it) writes:
how thin (i hope it is like that it should be written) can plywood be
found?

3-4 mm

and if i fave a rather complex shape, is it easy to 'bend' it?

numbers vary. I have some raduis of curvature numbers from John Stewart's
book on my website under "Boats" (see below) but I've seen different
numbers in another book. I've seen plywood standards websites mentioned in
this newsgroup. maybe if you email the manufacturer they will know the
bending raduis of what they make. you can also find at the same place on
my website formulae for calculating radius of curvature and a Basic
program for calculating beam camber which also displays the raduis of
curvature.

what should i use as coating for protection?

first seal all the edges well with resin such as polyester or epoxy to
keep water from getting into the end grain. what you do after that depends
on how long the boat will be in the water and on how long you want the
boat to last. for a boat that's only in the water for a few hours at a
time I make sure the edges are well sealed and then just paint. some
people also fibreglass the seams and then paint. other people fibreglass
all of the outside which will be under water and paint. some people
fibreglass the whole outside and paint. other people fibreglass both the
outside and the inside of the hull and paint.

thanks
and have a good evening.
matthias

there are also three kinds of plywood. the first kind "interior" made
without waterproof glue is usually not recommended unless you cover all
the plywood with fibreglass to keep it from ever getting wet. the second
kind "exterior" made with waterproof glue for house construction can last
10-15 years on a boat hull. the third kind "marine" made to a better
standard costs a lot more but can last 25 years on a boat hull. plywood
which has been completey sealed with a lot of fibreglass can last
indefinitely on a boat hull but that costs more and the boat will be
heavier than a boat without all the fibreglass on it.

--
--------------------------------------------------------------------------
----
William R Watt National Capital FreeNet Ottawa's free community
network
homepage: www.ncf.ca/~ag384/top.htm
warning: non-freenet email must have "notspam" in subject or it's returned

On 20 Jun 2004 22:33:07 GMT, (William R.
Watt) wrote:

Matthias Broersma writes:
how thin (i hope it is like that it should be written) can plywood be found?

3-4 mm

Aircraft homebuilders use 1/8 inch, 1/16, 1/32, and sometimes 1/64
which is like card stock: usually birch.

Brian W