Re: Micro's weight vs. plywood thickness
Bill - I'm not quite sure what you're referring to. I don't think
that anything is gonna changing with thicker plywood. From a very
rough computation, the submerged volume would change of something of
the order of 20 liters, with a constant waterline level. Doesn't make
any difference to me.
Best
Pippo
that anything is gonna changing with thicker plywood. From a very
rough computation, the submerged volume would change of something of
the order of 20 liters, with a constant waterline level. Doesn't make
any difference to me.
Best
Pippo
--- Inbolger@egroups.com, wmrpage@a... wrote:
> This is a purely academic question, but is it possible that you
> "Miro-nauts" are comparing apples and oranges? Would the difference
in
> displacement caused by floating a thicker hulled "Micro" to its
designed
> water line account for something more that the gross weight
increase
of
> thicker material? Just a thought.
>
> Bill in MN
That's right, Bill. It's more because of the different
densities of wood and water. The extra wood outside the
lines displaces almost twice the weight in water than it
weighs itself.
Mark
wmrpage@...wrote:
densities of wood and water. The extra wood outside the
lines displaces almost twice the weight in water than it
weighs itself.
Mark
wmrpage@...wrote:
>
>Would the difference in
> displacement caused by floating a thicker hulled "Micro" to its designed
> water line account for something more that the gross weight increase of
> thicker material? Just a thought.
>
> Bill in MN
>
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In a message dated 6/13/00 4:26:19 PM Central Daylight Time,
pippobianco@...writes:
<< Anyway, fellow Micro builders, going from 1/4" fir to 3/8" okoumé
ply
is a pretty minor weight increase, certainly much less than 400
pounds! >>
Pippo:
This is a purely academic question, but is it possible that you
"Miro-nauts" are comparing apples and oranges? Would the difference in
displacement caused by floating a thicker hulled "Micro" to its designed
water line account for something more that the gross weight increase of
thicker material? Just a thought.
Bill in MN
pippobianco@...writes:
<< Anyway, fellow Micro builders, going from 1/4" fir to 3/8" okoumé
ply
is a pretty minor weight increase, certainly much less than 400
pounds! >>
Pippo:
This is a purely academic question, but is it possible that you
"Miro-nauts" are comparing apples and oranges? Would the difference in
displacement caused by floating a thicker hulled "Micro" to its designed
water line account for something more that the gross weight increase of
thicker material? Just a thought.
Bill in MN
Dear Pippo:
I'm glad you're weighing in on this thread, too.
And so I guess it would be a thick, Fir one that could get
to1250#, with care, maybe including the fiberglass and
amenities. Part of what I wrote meant Micro builders needn't
worry overmuch about saving weight (unless you'd like to
test the easy towing behind a compact car claim with your
own).
I've no idea how many people are often daysailing six in
their Micros, but remember Hardin's famous essay from about
15 years ago concerning the Boat? As the world gets heavier,
just toss somebody out!
Good sailing to ya,
Mark
Giuseppe Bianco wrote:
I'm glad you're weighing in on this thread, too.
And so I guess it would be a thick, Fir one that could get
to1250#, with care, maybe including the fiberglass and
amenities. Part of what I wrote meant Micro builders needn't
worry overmuch about saving weight (unless you'd like to
test the easy towing behind a compact car claim with your
own).
I've no idea how many people are often daysailing six in
their Micros, but remember Hardin's famous essay from about
15 years ago concerning the Boat? As the world gets heavier,
just toss somebody out!
Good sailing to ya,
Mark
Giuseppe Bianco wrote:
>
> Too bad I couldn't get involved in the discussions about the Micro,
> I've been just too busy in the last few weeks (I'm just back from
> Rome, and I'm going to Paris tomorrow morning)...
> Anyway, fellow Micro builders, going from 1/4" fir to 3/8" okoumé
> ply
> is a pretty minor weight increase, certainly much less than 400
> pounds! Yes, my okoumé is 50% thicker but it's also about 30% less
> dense than fir... Now, if a whole "standard" Micro is 865 lbs, the
> wood is 665 lbs, including spars and framing...
> The total weight of my 11 plywood sheets was about 250 kg, which
> includes the double bottom. I'd imagine a waste factor of 20% more or
> less, which means about 50 kg... With a good safety margin, I can't
> imagine my Micro weighing much more than 450 kg, i.e. about 1000
> pounds.
> Best, Pippo
>
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