[bolger] Re: Sharpie forefeet (forefoots?)
> >The 'Presto' type (Commodore Ralph Munro) seems to be a sharpie shape withThere's a "monroesque" sharpie in BWAOM. Bolger quotes ballast in the
> >rounded chines. Does anyone know if it is immune from the squirrely
> >behaviour of its hard-chined cousins?
> >
>
> Although I was too cheap to actually buy the Reul Parker Sharpie book, I
>recall him saying that the Commodore Munroe designs are the most stable of
>all sharpies. The book has a Parker interpretation of the Munroe design.
>Parker also said that WoodenBoat magazine comissioned a design that was to
>have approached Munroe's hull to the greatest extent possible, the original
>prints having been lost in a hurricane.
>There is also apparently, I seem to recall, a Bolger designed-Munroe
>referenced boat, saw it listed on a website. However, I can't remember which
>site.
5 figure range for Monroe's original designs. With 10k of ballast,
they ought to be stable.
David Ryan
Minister of Information and Culture
Crumbling Empire Productions
(212) 247-0296
On Tue, 25 Jan 2000, Richard Barnes wrote:
edition. He speaks to the issue of flare, and relevantly enough, he
quotes PCB extensively on the issue.
Beebe is not a big fan of flare, and we know quite well that PCB is not,
either, in part because it kicks up spray when meeting a wave, and acts as
a brake when slamming, and it causes an abrupt rise in the bow, rather
than a smoother, seakindly rise that less flare would offer.
A submerged forefoot offers some of the same advantages, and also has the
distinct advantage of being much quieter at anchor (no slap-slap-slap of
waves on the bow, which can be loud and unfriendly--I've experienced it).
So, in terms of squirreliness, I don't think that a submerged forefoot is
all the problem it might be. It is likely to have a softer landing on an
incoming wave, with some positive and negative effects. In such a seaway,
coming off a plane and proceeding slowly seems a good idea.
Chris Crandallcrandall@...(785) 864-4131
Department of Psychology University of Kansas Lawrence, KS 66045
I have data convincingly disconfirming the Duhem-Quine hypothesis.
> A couple of us are building the Sweet Caroline; a powered or rowedI just got a copy of Beebe's "Voyaging Under Power", for $7.00, a first
> dory skiff with NO rocker and hard chines and flat bottom. Is this
> boat going to behave poorly with the forefoot in the water? Will it
> have to be trimmed to keep the forefoot out at all speeds or just when
> planing? The plans suggest this, but it will be impossible to keep
> from stuffing the whole bow into the waves ocassionally.
edition. He speaks to the issue of flare, and relevantly enough, he
quotes PCB extensively on the issue.
Beebe is not a big fan of flare, and we know quite well that PCB is not,
either, in part because it kicks up spray when meeting a wave, and acts as
a brake when slamming, and it causes an abrupt rise in the bow, rather
than a smoother, seakindly rise that less flare would offer.
A submerged forefoot offers some of the same advantages, and also has the
distinct advantage of being much quieter at anchor (no slap-slap-slap of
waves on the bow, which can be loud and unfriendly--I've experienced it).
So, in terms of squirreliness, I don't think that a submerged forefoot is
all the problem it might be. It is likely to have a softer landing on an
incoming wave, with some positive and negative effects. In such a seaway,
coming off a plane and proceeding slowly seems a good idea.
Chris Crandallcrandall@...(785) 864-4131
Department of Psychology University of Kansas Lawrence, KS 66045
I have data convincingly disconfirming the Duhem-Quine hypothesis.
I have a planing dory similar to Sweet Caroline. At planing speed the
forefoot rides clear of the waterline but occasionally, when surfing down
the back of a large wave or wake the forefoot will bury with exiting effect.
Keep weight out of the bow and all will be well.
P. Sites
-----Original Message-----
From: Richard Barnes [mailto:oakbowerybarnes@...]
Sent: Tuesday, January 25, 2000 8:08 AM
To:bolger@egroups.com
Subject: [bolger] Re: Sharpie forefeet (forefoots?)
A couple of us are building the Sweet Caroline; a powered or rowed dory
skiff with NO rocker and hard chines and flat bottom. Is this boat going
to behave poorly with the forefoot in the water? Will it have to be trimmed
to keep the forefoot out at all speeds or just when planing?
The plans suggest this, but it will be impossible to keep from stuffing the
whole bow into the waves ocassionally.
Richard
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forefoot rides clear of the waterline but occasionally, when surfing down
the back of a large wave or wake the forefoot will bury with exiting effect.
Keep weight out of the bow and all will be well.
P. Sites
-----Original Message-----
From: Richard Barnes [mailto:oakbowerybarnes@...]
Sent: Tuesday, January 25, 2000 8:08 AM
To:bolger@egroups.com
Subject: [bolger] Re: Sharpie forefeet (forefoots?)
A couple of us are building the Sweet Caroline; a powered or rowed dory
skiff with NO rocker and hard chines and flat bottom. Is this boat going
to behave poorly with the forefoot in the water? Will it have to be trimmed
to keep the forefoot out at all speeds or just when planing?
The plans suggest this, but it will be impossible to keep from stuffing the
whole bow into the waves ocassionally.
Richard
> >rounded chines. Does anyone know if it is immune from the squirrely------------------------------------------------------------------------
> >behaviour of its hard-chined cousins?
BREAKTHROUGH ALTERNATIVE TO VIAGRA
NOW AVAILABLE WITHOUT A PRESCRIPTION!
http://click.egroups.com/1/619/5/_/3457/_/948805381/
-- Create a poll/survey for your group!
--http://www.egroups.com/vote?listname=bolger&m=1
A couple of us are building the Sweet Caroline; a powered or rowed dory
skiff with NO rocker and hard chines and flat bottom. Is this boat going
to behave poorly with the forefoot in the water? Will it have to be trimmed
to keep the forefoot out at all speeds or just when planing?
The plans suggest this, but it will be impossible to keep from stuffing the
whole bow into the waves ocassionally.
Richard
skiff with NO rocker and hard chines and flat bottom. Is this boat going
to behave poorly with the forefoot in the water? Will it have to be trimmed
to keep the forefoot out at all speeds or just when planing?
The plans suggest this, but it will be impossible to keep from stuffing the
whole bow into the waves ocassionally.
Richard
> >rounded chines. Does anyone know if it is immune from the squirrely
> >behaviour of its hard-chined cousins?
>The 'Presto' type (Commodore Ralph Munro) seems to be a sharpie shape withAlthough I was too cheap to actually buy the Reul Parker Sharpie book, I
>rounded chines. Does anyone know if it is immune from the squirrely
>behaviour of its hard-chined cousins?
>
recall him saying that the Commodore Munroe designs are the most stable of
all sharpies. The book has a Parker interpretation of the Munroe design.
Parker also said that WoodenBoat magazine comissioned a design that was to
have approached Munroe's hull to the greatest extent possible, the original
prints having been lost in a hurricane.
There is also apparently, I seem to recall, a Bolger designed-Munroe
referenced boat, saw it listed on a website. However, I can't remember which
site.
Since Munroe is somewhat of a neighbor (His (now open) former home in
Miami (http://www.cr.nps.gov/nr/44.htm)is 36 miles away and a museum there
houses his photographic works
(http://www.historical-museum.org/collect/munroe/munroe.htm)) I have recently
decided to take an interest in his designs. Perhaps I will even build one
after completion of Oldshoe. I would be delighted to receive any links or
any other info that folks can supply.
Best regards, Warren
Hi,
Interesting response from PCB&F about the poor behaviour of sharpies if the
forefoot is submerged and all kinds of complicated flows get going around
the chines.
I remember reading, many years ago, an article about Phil in WoodenBoat
magazine ( I forget which issue, but pre-1990 ). He talks about June Bug
and mentions that the only thing he'd change about her, if pressed, would be
to 'round off the chines' up at the front (if my memory serves me well).
Presumably this would help stop the formation of these nasty eddies that
cause the bad behaviour. The downside would be that construction would be a
lot more complex. And anyway, if she's not overloaded, the problem won't
arise because of the full rocker.
The 'Presto' type (Commodore Ralph Munro) seems to be a sharpie shape with
rounded chines. Does anyone know if it is immune from the squirrely
behaviour of its hard-chined cousins?
Bill Samson
______________________________________________________
Interesting response from PCB&F about the poor behaviour of sharpies if the
forefoot is submerged and all kinds of complicated flows get going around
the chines.
I remember reading, many years ago, an article about Phil in WoodenBoat
magazine ( I forget which issue, but pre-1990 ). He talks about June Bug
and mentions that the only thing he'd change about her, if pressed, would be
to 'round off the chines' up at the front (if my memory serves me well).
Presumably this would help stop the formation of these nasty eddies that
cause the bad behaviour. The downside would be that construction would be a
lot more complex. And anyway, if she's not overloaded, the problem won't
arise because of the full rocker.
The 'Presto' type (Commodore Ralph Munro) seems to be a sharpie shape with
rounded chines. Does anyone know if it is immune from the squirrely
behaviour of its hard-chined cousins?
Bill Samson
______________________________________________________