Re: [bolger] Re: A Question on the Light Scooner
True, offsets can have any number of dimensions (even more than 3 for
physicists). I'm talking about the X-Y datapoints for laying out the
sides. I did enter the boat in the program, ripped the sides on the table
saw, assembled and butt-blocked them, and transferred the changes to the
ends since the sides were mostly rectangles.
I did not plot the bottom, rather nailed it on and transferred the cuts off
the inverted boat, took it off and cut it.
Gregg Carlson
At 11:58 AM 11/13/2000 -0500, you wrote:
physicists). I'm talking about the X-Y datapoints for laying out the
sides. I did enter the boat in the program, ripped the sides on the table
saw, assembled and butt-blocked them, and transferred the changes to the
ends since the sides were mostly rectangles.
I did not plot the bottom, rather nailed it on and transferred the cuts off
the inverted boat, took it off and cut it.
Gregg Carlson
At 11:58 AM 11/13/2000 -0500, you wrote:
>Greg --
>
>When I think of offsets, I think of x, y, and z figures relative to a
>baseline and center line.
>
>When you said "The offsets are the X-Y data used to plot the sides."
>do you mean the figures for laying out the topsides, or did you use
>your hull program to generate offsets for the entire hull?
>
>YIBB,
>
>David
>
>>Interesting, I guess it's there all right. As I noted, I took it off; I
>>didn't think the 1/2" bottom would take it. Probably why MY schooner is SO
>>fast...;-}
>>
>>The offsets are the X-Y data used to plot the sides.
>
>CRUMBLING EMPIRE PRODUCTIONS
>134 W.26th St. 12th Floor
>New York, NY 10001
>(212) 243-1636
>
>
>Bolger rules!!!
>- no cursing, flaming, trolling, or spamming
>- no flogging dead horses
>- add something: take "thanks!" and "ditto!" posts off-list.
>- stay on topic and punctuate
>- add your comments at the TOP and SIGN your posts
>
>
>
Greg --
When I think of offsets, I think of x, y, and z figures relative to a
baseline and center line.
When you said "The offsets are the X-Y data used to plot the sides."
do you mean the figures for laying out the topsides, or did you use
your hull program to generate offsets for the entire hull?
YIBB,
David
134 W.26th St. 12th Floor
New York, NY 10001
(212) 243-1636
When I think of offsets, I think of x, y, and z figures relative to a
baseline and center line.
When you said "The offsets are the X-Y data used to plot the sides."
do you mean the figures for laying out the topsides, or did you use
your hull program to generate offsets for the entire hull?
YIBB,
David
>Interesting, I guess it's there all right. As I noted, I took it off; ICRUMBLING EMPIRE PRODUCTIONS
>didn't think the 1/2" bottom would take it. Probably why MY schooner is SO
>fast...;-}
>
>The offsets are the X-Y data used to plot the sides.
134 W.26th St. 12th Floor
New York, NY 10001
(212) 243-1636
Interesting, I guess it's there all right. As I noted, I took it off; I
didn't think the 1/2" bottom would take it. Probably why MY schooner is SO
fast...;-}
The offsets are the X-Y data used to plot the sides.
Gregg Carlson
At 09:24 AM 11/13/2000 -0500, you wrote:
didn't think the 1/2" bottom would take it. Probably why MY schooner is SO
fast...;-}
The offsets are the X-Y data used to plot the sides.
Gregg Carlson
At 09:24 AM 11/13/2000 -0500, you wrote:
>FLSB (Fellow Light Scooner Builders) --
>
>I too notice (by eyeball) a "kink" when I was laying out the lines
>for the aft sections of the topsides. But as this was during one of
>the "Bolger is God" flare-ups on the list, I moved on with the
>building and put my faith in God Bolger.
>
>Kink or not, Margaret Ellen is by no means a "fair" boat. She twists
>and turn and ripples this way and that. But she is a fast boat. As
>fast as Tim's? We'll never know, but plenty fast for me.
>
>My question is this: Where are these offsets GC is referring to? I
>see no offsets on my plans?
>
>YIBB,
>
>David
>
>>The kink is definitely there. In a model, it shows up as a sweep up
>>in the schooner's run. It also requires about an inch taken off the
>>top of the transom to keep the sheer reasonably fair. The
>>gereneral look is a slightly "hippy" schooner. Likelihood is that
>>there's a hiccup in the offsets but...PCB has cheated on a number of
>>things to get the scooner reasonably load bearing without departing
>>too far from the 6:1 length/beam at floors ratio and this could have
>>been another cheat.
>>
>>We looked at it and looked at it, thought about just what the water is
>>going to do at high speed (!) then *kept* the sweep-up and took a bit
>>off the transom to maintain the sheerline. The sweep=up was faired
>>with a 16' batten but is still quite evident when the boat's on her
>>trailer. Skiffies give it (the sweep-up) wolf-whistles when they see
>>it... I strongly suspect it's the reason why we are so very, very
>>fast, almost unbelievably so given later builders' reports. My own
>>building notes say "live with it and trim the transom".
>>
>>Tim & Flying Tadpole
>>
>>--- Inbolger@egroups.com, "Gregg Carlson" <ghartc@p...> wrote:
>>> A question for light scooner builders occured to me: did anyone else
>>> find a bump orkink nk in the side panel on the bottom edge (the
>>> chine) near the stern? I plotted that kink twice myself and then
>>> faired it out by a spline. Was it just me, or is there a bug in the
>>> offsets or an intentional sweep up in the aft rocker?
>>>
>>> Gregg Carlson
>>
>>
>>
>>Bolger rules!!!
>>- no cursing, flaming, trolling, or spamming
>>- no flogging dead horses
>>- add something: take "thanks!" and "ditto!" posts off-list.
>>- stay on topic and punctuate
>>- add your comments at the TOP and SIGN your posts
>
>
>CRUMBLING EMPIRE PRODUCTIONS
>134 W.26th St. 12th Floor
>New York, NY 10001
>(212) 243-1636
>
>
>Bolger rules!!!
>- no cursing, flaming, trolling, or spamming
>- no flogging dead horses
>- add something: take "thanks!" and "ditto!" posts off-list.
>- stay on topic and punctuate
>- add your comments at the TOP and SIGN your posts
>
>
>
FLSB (Fellow Light Scooner Builders) --
I too notice (by eyeball) a "kink" when I was laying out the lines
for the aft sections of the topsides. But as this was during one of
the "Bolger is God" flare-ups on the list, I moved on with the
building and put my faith in God Bolger.
Kink or not, Margaret Ellen is by no means a "fair" boat. She twists
and turn and ripples this way and that. But she is a fast boat. As
fast as Tim's? We'll never know, but plenty fast for me.
My question is this: Where are these offsets GC is referring to? I
see no offsets on my plans?
YIBB,
David
134 W.26th St. 12th Floor
New York, NY 10001
(212) 243-1636
I too notice (by eyeball) a "kink" when I was laying out the lines
for the aft sections of the topsides. But as this was during one of
the "Bolger is God" flare-ups on the list, I moved on with the
building and put my faith in God Bolger.
Kink or not, Margaret Ellen is by no means a "fair" boat. She twists
and turn and ripples this way and that. But she is a fast boat. As
fast as Tim's? We'll never know, but plenty fast for me.
My question is this: Where are these offsets GC is referring to? I
see no offsets on my plans?
YIBB,
David
>The kink is definitely there. In a model, it shows up as a sweep upCRUMBLING EMPIRE PRODUCTIONS
>in the schooner's run. It also requires about an inch taken off the
>top of the transom to keep the sheer reasonably fair. The
>gereneral look is a slightly "hippy" schooner. Likelihood is that
>there's a hiccup in the offsets but...PCB has cheated on a number of
>things to get the scooner reasonably load bearing without departing
>too far from the 6:1 length/beam at floors ratio and this could have
>been another cheat.
>
>We looked at it and looked at it, thought about just what the water is
>going to do at high speed (!) then *kept* the sweep-up and took a bit
>off the transom to maintain the sheerline. The sweep=up was faired
>with a 16' batten but is still quite evident when the boat's on her
>trailer. Skiffies give it (the sweep-up) wolf-whistles when they see
>it... I strongly suspect it's the reason why we are so very, very
>fast, almost unbelievably so given later builders' reports. My own
>building notes say "live with it and trim the transom".
>
>Tim & Flying Tadpole
>
>--- Inbolger@egroups.com, "Gregg Carlson" <ghartc@p...> wrote:
>> A question for light scooner builders occured to me: did anyone else
>> find a bump orkink nk in the side panel on the bottom edge (the
>> chine) near the stern? I plotted that kink twice myself and then
>> faired it out by a spline. Was it just me, or is there a bug in the
>> offsets or an intentional sweep up in the aft rocker?
>>
>> Gregg Carlson
>
>
>
>Bolger rules!!!
>- no cursing, flaming, trolling, or spamming
>- no flogging dead horses
>- add something: take "thanks!" and "ditto!" posts off-list.
>- stay on topic and punctuate
>- add your comments at the TOP and SIGN your posts
134 W.26th St. 12th Floor
New York, NY 10001
(212) 243-1636
The kink is definitely there. In a model, it shows up as a sweep up
in the schooner's run. It also requires about an inch taken off the
top of the transom to keep the sheer reasonably fair. The
gereneral look is a slightly "hippy" schooner. Likelihood is that
there's a hiccup in the offsets but...PCB has cheated on a number of
things to get the scooner reasonably load bearing without departing
too far from the 6:1 length/beam at floors ratio and this could have
been another cheat.
We looked at it and looked at it, thought about just what the water is
going to do at high speed (!) then *kept* the sweep-up and took a bit
off the transom to maintain the sheerline. The sweep=up was faired
with a 16' batten but is still quite evident when the boat's on her
trailer. Skiffies give it (the sweep-up) wolf-whistles when they see
it... I strongly suspect it's the reason why we are so very, very
fast, almost unbelievably so given later builders' reports. My own
building notes say "live with it and trim the transom".
Tim & Flying Tadpole
in the schooner's run. It also requires about an inch taken off the
top of the transom to keep the sheer reasonably fair. The
gereneral look is a slightly "hippy" schooner. Likelihood is that
there's a hiccup in the offsets but...PCB has cheated on a number of
things to get the scooner reasonably load bearing without departing
too far from the 6:1 length/beam at floors ratio and this could have
been another cheat.
We looked at it and looked at it, thought about just what the water is
going to do at high speed (!) then *kept* the sweep-up and took a bit
off the transom to maintain the sheerline. The sweep=up was faired
with a 16' batten but is still quite evident when the boat's on her
trailer. Skiffies give it (the sweep-up) wolf-whistles when they see
it... I strongly suspect it's the reason why we are so very, very
fast, almost unbelievably so given later builders' reports. My own
building notes say "live with it and trim the transom".
Tim & Flying Tadpole
--- Inbolger@egroups.com, "Gregg Carlson" <ghartc@p...> wrote:
> A question for light scooner builders occured to me: did anyone else
> find a bump orkink nk in the side panel on the bottom edge (the
> chine) near the stern? I plotted that kink twice myself and then
> faired it out by a spline. Was it just me, or is there a bug in the
> offsets or an intentional sweep up in the aft rocker?
>
> Gregg Carlson
I haven't yet gotten to that part of the project, but I may have some
insight. According to Glen L. Witt in "Boatbuilding With Plywood", no
designer intentionally includes any unfair lines, and those found to be so
through a fault in the plans or in the lofting thereof, should be correctly
faired with a batten. Sounds like you did it right Gregg.
____________________________________________________________________________
__
Human beings can always be counted upon to assert, with vigor, their
God-given right to be stupid.
-Dean Koontz
insight. According to Glen L. Witt in "Boatbuilding With Plywood", no
designer intentionally includes any unfair lines, and those found to be so
through a fault in the plans or in the lofting thereof, should be correctly
faired with a batten. Sounds like you did it right Gregg.
____________________________________________________________________________
__
Human beings can always be counted upon to assert, with vigor, their
God-given right to be stupid.
-Dean Koontz
----- Original Message -----
From: Gregg Carlson <ghartc@...>
To: <bolger@egroups.com>
Sent: Friday, November 10, 2000 11:19 PM
Subject: [bolger] A Question on the Light Scooner
> A question for light scooner builders occured to me: did anyone else
> find a bump orkink nk in the side panel on the bottom edge (the
> chine) near the stern? I plotted that kink twice myself and then
> faired it out by a spline. Was it just me, or is there a bug in the
> offsets or an intentional sweep up in the aft rocker?
>
> Gregg Carlson
>
>
>
> Bolger rules!!!
> - no cursing, flaming, trolling, or spamming
> - no flogging dead horses
> - add something: take "thanks!" and "ditto!" posts off-list.
> - stay on topic and punctuate
> - add your comments at the TOP and SIGN your posts
>
>
A question for light scooner builders occured to me: did anyone else
find a bump orkink nk in the side panel on the bottom edge (the
chine) near the stern? I plotted that kink twice myself and then
faired it out by a spline. Was it just me, or is there a bug in the
offsets or an intentional sweep up in the aft rocker?
Gregg Carlson
find a bump orkink nk in the side panel on the bottom edge (the
chine) near the stern? I plotted that kink twice myself and then
faired it out by a spline. Was it just me, or is there a bug in the
offsets or an intentional sweep up in the aft rocker?
Gregg Carlson