Re: Lengthening Birdwatcher
THANK YOU ALL, John, Proacon, Robert, Bob, Christopher and of course
Bruce who hit us with the specifics - replies have been very helpful.
The consensus is that marginally moving bulkheads to achieve extra
sleeping space is much simpler, cheaper and sounder than running to an
overall extension. This is the way we'll go.
Thank you again - Darrell
Bruce who hit us with the specifics - replies have been very helpful.
The consensus is that marginally moving bulkheads to achieve extra
sleeping space is much simpler, cheaper and sounder than running to an
overall extension. This is the way we'll go.
Thank you again - Darrell
Obviously, the safest way to avoid unexpected surprises is to avoid
changing the tried and tested design.
But, if you absolutely must achieve a little more foot room when
sleeping, rather than change the whole boat, it appears simpler to
just move the bulkheads without lengthening the boat. Shift station
7 towards the aft by 3 inches, and station 4 forward by 3 inches.
This would give you an extra 6 inches of sleeping room, and not change
the overall boat geometry and size. (You might want to do a bit of
lofting to determine the exact change in the bulkhead dimensions, but
my 'eyeball' guess is bulkhead 4 narrows by 1/2" and bulkhead 7 by
1/4").
changing the tried and tested design.
But, if you absolutely must achieve a little more foot room when
sleeping, rather than change the whole boat, it appears simpler to
just move the bulkheads without lengthening the boat. Shift station
7 towards the aft by 3 inches, and station 4 forward by 3 inches.
This would give you an extra 6 inches of sleeping room, and not change
the overall boat geometry and size. (You might want to do a bit of
lofting to determine the exact change in the bulkhead dimensions, but
my 'eyeball' guess is bulkhead 4 narrows by 1/2" and bulkhead 7 by
1/4").
Wasn't William D. Jochems designed for a tall person?
Bob Larkin wrote:
Bob Larkin wrote:
> The distance between BW bulkheads is 6-1/2 feet, for both the middle
> and aft compartments. While sleeping on the boat, we stow the various
> bags of domestic gear outboard of the sleeping area, and this seems to
> work well. The gutter arrangement of BW-2 makes this space very useable.
>
> If one arranged the gear for sleeping at a diagonal, sort of V-berth
> style, the length becomes almost 7 feet.
>
> Anyway you arrange things, there is only room for 2 adults, but this is
> spacious, unless you are very tall.
>
> Bob
>
> --- Inbolger@yahoogroups.com, "dproasit" <knic0014@...> wrote:
>
>> Hello all - Need a little extra leg room in BW. Had a yarn with a
>> builder and he suggested adding 10% to all longitudinal measurements
>> would do the job. No need to alter any of the laterals - the variation
>> would not be a major problem when joining panels. Does this sound OK
>> and doable. Any other advice appreciated
>> Thanks - Darrell
>>
>>
>
>
>
>
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The distance between BW bulkheads is 6-1/2 feet, for both the middle
and aft compartments. While sleeping on the boat, we stow the various
bags of domestic gear outboard of the sleeping area, and this seems to
work well. The gutter arrangement of BW-2 makes this space very useable.
If one arranged the gear for sleeping at a diagonal, sort of V-berth
style, the length becomes almost 7 feet.
Anyway you arrange things, there is only room for 2 adults, but this is
spacious, unless you are very tall.
Bob
and aft compartments. While sleeping on the boat, we stow the various
bags of domestic gear outboard of the sleeping area, and this seems to
work well. The gutter arrangement of BW-2 makes this space very useable.
If one arranged the gear for sleeping at a diagonal, sort of V-berth
style, the length becomes almost 7 feet.
Anyway you arrange things, there is only room for 2 adults, but this is
spacious, unless you are very tall.
Bob
--- Inbolger@yahoogroups.com, "dproasit" <knic0014@...> wrote:
>
> Hello all - Need a little extra leg room in BW. Had a yarn with a
> builder and he suggested adding 10% to all longitudinal measurements
> would do the job. No need to alter any of the laterals - the variation
> would not be a major problem when joining panels. Does this sound OK
> and doable. Any other advice appreciated
> Thanks - Darrell
>
--- Inbolger@yahoogroups.com, "dproasit" <knic0014@...> wrote:
sleeping? Otherwise I would imagine you needed to widen it also, or
deepen it. If it is a bunk, I would prefer to see a redesign of the
space, move a bulkhead or extend a bunk with a riser. That way you
don't mess with the hydro. Fixing structure if you move a bulkhead
is a lot more routine.
Does the spar change location due to this move, that would be a
biggie. If it doesn't move you may only get a portion of the 10% you
crave.
If you extend the length you will add 10% also to the displacement,
and the stability, however, for the same load the curve and
waterline, waterplane etc... will be slightly different so you are
messing with material things. I'm not saying it's a biggie, but
changing the arrangements is a comparative nothing.
As far as the panel layout is concerned I totally agree with the
points well made, but in the world of grownups you can end up with
panels that are frustratingly 16'3" long, and if you bring it up with
the designer he will think you a slob to mention it. So while you
would have to be careful about were stuff like butt blocks fell, to
be sure they didn't foul something, I wouldn't let that stop me.
>variation
> Hello all - Need a little extra leg room in BW. Had a yarn with a
> builder and he suggested adding 10% to all longitudinal measurements
> would do the job. No need to alter any of the laterals - the
> would not be a major problem when joining panels. Does this sound OKI assume the problem here is that you need more leg room for
> and doable. Any other advice appreciated
> Thanks - Darrell
>
sleeping? Otherwise I would imagine you needed to widen it also, or
deepen it. If it is a bunk, I would prefer to see a redesign of the
space, move a bulkhead or extend a bunk with a riser. That way you
don't mess with the hydro. Fixing structure if you move a bulkhead
is a lot more routine.
Does the spar change location due to this move, that would be a
biggie. If it doesn't move you may only get a portion of the 10% you
crave.
If you extend the length you will add 10% also to the displacement,
and the stability, however, for the same load the curve and
waterline, waterplane etc... will be slightly different so you are
messing with material things. I'm not saying it's a biggie, but
changing the arrangements is a comparative nothing.
As far as the panel layout is concerned I totally agree with the
points well made, but in the world of grownups you can end up with
panels that are frustratingly 16'3" long, and if you bring it up with
the designer he will think you a slob to mention it. So while you
would have to be careful about were stuff like butt blocks fell, to
be sure they didn't foul something, I wouldn't let that stop me.
The only thing to be aware of is that BW (like most plywood boats) was designed around 4x8 plywood sheets. Two sheets butted make a 16' panel and a 15 1/2 foot boat; 3 make a 24' panel and a 23'boat. If it matters, a 10% stretch of BW requires a third butt for the sides and some rearranging of the window panels.
JohnT
JohnT
JohnT
JohnT
----- Original Message -----
From: dproasit
To:bolger@yahoogroups.com
Sent: Sunday, March 09, 2008 4:45 AM
Subject: [bolger] Lengthening Birdwatcher
Hello all - Need a little extra leg room in BW. Had a yarn with a
builder and he suggested adding 10% to all longitudinal measurements
would do the job. No need to alter any of the laterals - the variation
would not be a major problem when joining panels. Does this sound OK
and doable. Any other advice appreciated
Thanks - Darrell
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Hello all - Need a little extra leg room in BW. Had a yarn with a
builder and he suggested adding 10% to all longitudinal measurements
would do the job. No need to alter any of the laterals - the variation
would not be a major problem when joining panels. Does this sound OK
and doable. Any other advice appreciated
Thanks - Darrell
builder and he suggested adding 10% to all longitudinal measurements
would do the job. No need to alter any of the laterals - the variation
would not be a major problem when joining panels. Does this sound OK
and doable. Any other advice appreciated
Thanks - Darrell