Re: [bolger] Shoal draft and self-righting
I agree with all of this.
See other posts.
Jeff
See other posts.
Jeff
----- Original Message -----
From: Brand, Christopher <cbrand@...>
To: <bolger@egroups.com>
Sent: Friday, November 03, 2000 5:34 AM
Subject: RE: [bolger] Shoal draft and self-righting
Jeff,
I know the virtue of RoT (Rules of Thumb) is that they are simple,
but I am missing some elements in what you propose. First, I assume that
draft in the RoT is overall draft and not "canoe body" draft? Second, the
RoT assumes that the CG of the ballast is as close as possible to the
maximum draft point (otherwise the excess draft is not necessary)? Third,
there is adequate reserve bouyancy above the WL to provide righting arm?
Fourth, there are no openings into the hull below the heeled waterline?
Personally, I like to leave level draft out of the equation entirely (and
consider that more from a perspective of displacement/underbody
configuration desired). For self-righting I look at weight distribution,
topsides/deck form and watertight integrety (the rig figures into both of
these considerably).
If self-righting and sailing stability were the only considerations, the
perfect boat would be only lightly ballasted (perhaps a grounding shoe),
flat on the bottom, and have a deck that is half of a cylinder. She can be
very light and need draw only inches. There would be no way to keep such a
vessel from regaining her feet under any circumstances short of ballasting
the end of her mast :)
I think Mr. Bolger's philosophy applies these ideas and makes interesting
and USEFUL boats out of them.
-----Original Message-----
From: Jeff Gilbert [mailto:jgilbert@...]
Sent: Thursday, November 02, 2000 10:07 AM
To:bolger@egroups.com
Subject: Re: [bolger] Shoal draft and self-righting
Rule of thumb:
You can attain self righting thru ballasting as
long as your draught is at least half Bmax at WL.
With a nice slim hull this may be as little as 3feet in a 28foot cruiser.
Jeff Gilbert
"Ballast is not a dirty word"
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
Vance,
WB is months behind in Australia.
Just got August one.
I think youll find that the friend who lost his life was unfortuneately on
one of
those rockets with a fin and bulb. The repair
yards are full of these with keel/hull
join problems.
My comments refer to a well found cruising yachts
with a long keel integral to the hull, and a goodly
displacement and ballast ratio.
These can be surprisingly shoal.
Bolgers Seabird is a PERFECT example.
Jeff Gilbert
WB is months behind in Australia.
Just got August one.
I think youll find that the friend who lost his life was unfortuneately on
one of
those rockets with a fin and bulb. The repair
yards are full of these with keel/hull
join problems.
My comments refer to a well found cruising yachts
with a long keel integral to the hull, and a goodly
displacement and ballast ratio.
These can be surprisingly shoal.
Bolgers Seabird is a PERFECT example.
Jeff Gilbert
----- Original Message -----
From: Vance Cowan <vcgraphics@...>
To: <bolger@egroups.com>
Sent: Friday, November 03, 2000 11:41 AM
Subject: [bolger] Re: Shoal draft and self-righting
----- Original Message ----- .
I don't get WoodenBoat magazine anymore -- but I notice on their
web page that the November/December issue features an article
called "Shoal Draft and Self-Righting: You Can Have Both."
Can anyone on the list who is a WoodenBoat subscriber give us
a quick summary of it?
Garth
Jeff Gilbert answered..
Rule of thumb:
You can attain self righting thru ballasting as
long as your draught is at least half Bmax at WL.
With a nice slim hull this may be as little as 3feet in a 28foot
cruiser.
Jeff Gilbert
"Ballast is not a dirty word"
Jeff, this RoT is the antithesis of the article. BCB&F try for less
than two feet draft with beams much more than 4 feet. In the
article they mention in passing their 37 footer of 12 inch draft that
crossed the Atlantic. I think PCB feels that deep lead keels ARE
"a dirty word". He has mentioned in his writings the death of a
friend due to the dropping off of a lead keel.
Vance Cowan
Who both reads and types slowly
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
You understand it correctly but it
applies to long keeled cruising yachts of the traditional style.
No, it doesnt apply to multihull form.
I sent a more detailed post on it somewhere.
The best righting system Ive seen for multis involved flooding the bows
till the stern was way up in the air, at a balance point.
You then allow a sort of purse seine bag to drift away from the boat.
When theres enough water in the bag you use its inertia to pull the
stern over the oter way before pumping out.
My idea for multis is not to right them at all.
Design a cat with hulls identical above and below the tramp bridgedeck,
and entry half way up.
Circular cross beams with masts (cat-schooner rig) on clampable T pieces on
each beam.
If you flip her you unclip the stays, pull the masts round, reattach and
sail off upside down.
The interior has identical ceiling and sole with benches/bed flats half way
up.
You go inside and get your gear off the floor and put it back on the other
side.
You have to flip your rudders etc.
All halyard winches on mast, others on side of hull, halfway up.
It would work for a simple camp-cruiser.
Jeff
applies to long keeled cruising yachts of the traditional style.
No, it doesnt apply to multihull form.
I sent a more detailed post on it somewhere.
The best righting system Ive seen for multis involved flooding the bows
till the stern was way up in the air, at a balance point.
You then allow a sort of purse seine bag to drift away from the boat.
When theres enough water in the bag you use its inertia to pull the
stern over the oter way before pumping out.
My idea for multis is not to right them at all.
Design a cat with hulls identical above and below the tramp bridgedeck,
and entry half way up.
Circular cross beams with masts (cat-schooner rig) on clampable T pieces on
each beam.
If you flip her you unclip the stays, pull the masts round, reattach and
sail off upside down.
The interior has identical ceiling and sole with benches/bed flats half way
up.
You go inside and get your gear off the floor and put it back on the other
side.
You have to flip your rudders etc.
All halyard winches on mast, others on side of hull, halfway up.
It would work for a simple camp-cruiser.
Jeff
----- Original Message -----
From: <freedem@...>
To: <bolger@egroups.com>
Sent: Friday, November 03, 2000 6:24 AM
Subject: [bolger] Re: Shoal draft and self-righting
Jeff
Except for Mr Bolger I belive the first book on boats I read was Jim
Brown designer of the searunner trimarains and so I might have been
corupted at a young age, ;-) IMHO I much prefer boyancy to ballast
Jeffery
PS to clairfie your example that would be a minium 3 foot draft on a
6 foot max beam irrespective of the length?
just wondering then say you have a cat with an over all beam of 8 feet
should have ballast either fixed or positionable 4 feet or more. how
much ballest is needed?
You've started me thinking if for example you have a searunner of 34'
length and 16 foot beam ( From memory if you have a positional weight
on a pole/lever arm/ pivot that can be extended 8 feet or more from
the hull could you make it self righting?
This is a really neat rule of thumb if I am understanding it right
Thankyou
Jeffery
--- Inbolger@egroups.com, "Jeff Gilbert" <jgilbert@d...> wrote:
> Rule of thumb:
> You can attain self righting thru ballasting as
> long as your draught is at least half Bmax at WL.
> With a nice slim hull this may be as little as 3feet in a 28foot
cruiser.
> Jeff Gilbert
> "Ballast is not a dirty word"
>
> ----- Original Message -----
> From: Garth Battista <garth@b...>
> To: <bolger@egroups.com>
> Sent: Friday, November 03, 2000 1:58 AM
> Subject: [bolger] Shoal draft and self-righting
>
>
> I don't get WoodenBoat magazine anymore -- but I notice on their web
> page that the November/December issue features an article called
> "Shoal Draft and Self-Righting: You Can Have Both."
>
> Can anyone on the list who is a WoodenBoat subscriber give us a
quick
> summary of it?
>
> All best,
> Garth
>
>
>
> Bolger rules!!!
> - no cursing
> - stay on topic
> - use punctuation
> - add your comments at the TOP and SIGN your posts
> - add some content: send "thanks!" and "ditto!" posts
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
----- Original Message ----- .
I don't get WoodenBoat magazine anymore -- but I notice on their
web page that the November/December issue features an article
called "Shoal Draft and Self-Righting: You Can Have Both."
Can anyone on the list who is a WoodenBoat subscriber give us
a quick summary of it?
Garth
Jeff Gilbert answered..
Rule of thumb:
You can attain self righting thru ballasting as
long as your draught is at least half Bmax at WL.
With a nice slim hull this may be as little as 3feet in a 28foot
cruiser.
Jeff Gilbert
"Ballast is not a dirty word"
Jeff, this RoT is the antithesis of the article. BCB&F try for less
than two feet draft with beams much more than 4 feet. In the
article they mention in passing their 37 footer of 12 inch draft that
crossed the Atlantic. I think PCB feels that deep lead keels ARE
"a dirty word". He has mentioned in his writings the death of a
friend due to the dropping off of a lead keel.
Vance Cowan
Who both reads and types slowly
Jeff
Except for Mr Bolger I belive the first book on boats I read was Jim
Brown designer of the searunner trimarains and so I might have been
corupted at a young age, ;-) IMHO I much prefer boyancy to ballast
Jeffery
PS to clairfie your example that would be a minium 3 foot draft on a
6 foot max beam irrespective of the length?
just wondering then say you have a cat with an over all beam of 8 feet
should have ballast either fixed or positionable 4 feet or more. how
much ballest is needed?
You've started me thinking if for example you have a searunner of 34'
length and 16 foot beam ( From memory if you have a positional weight
on a pole/lever arm/ pivot that can be extended 8 feet or more from
the hull could you make it self righting?
This is a really neat rule of thumb if I am understanding it right
Thankyou
Jeffery
Except for Mr Bolger I belive the first book on boats I read was Jim
Brown designer of the searunner trimarains and so I might have been
corupted at a young age, ;-) IMHO I much prefer boyancy to ballast
Jeffery
PS to clairfie your example that would be a minium 3 foot draft on a
6 foot max beam irrespective of the length?
just wondering then say you have a cat with an over all beam of 8 feet
should have ballast either fixed or positionable 4 feet or more. how
much ballest is needed?
You've started me thinking if for example you have a searunner of 34'
length and 16 foot beam ( From memory if you have a positional weight
on a pole/lever arm/ pivot that can be extended 8 feet or more from
the hull could you make it self righting?
This is a really neat rule of thumb if I am understanding it right
Thankyou
Jeffery
--- Inbolger@egroups.com, "Jeff Gilbert" <jgilbert@d...> wrote:
> Rule of thumb:
> You can attain self righting thru ballasting as
> long as your draught is at least half Bmax at WL.
> With a nice slim hull this may be as little as 3feet in a 28foot
cruiser.
> Jeff Gilbert
> "Ballast is not a dirty word"
>
> ----- Original Message -----
> From: Garth Battista <garth@b...>
> To: <bolger@egroups.com>
> Sent: Friday, November 03, 2000 1:58 AM
> Subject: [bolger] Shoal draft and self-righting
>
>
> I don't get WoodenBoat magazine anymore -- but I notice on their web
> page that the November/December issue features an article called
> "Shoal Draft and Self-Righting: You Can Have Both."
>
> Can anyone on the list who is a WoodenBoat subscriber give us a
quick
> summary of it?
>
> All best,
> Garth
>
>
>
> Bolger rules!!!
> - no cursing
> - stay on topic
> - use punctuation
> - add your comments at the TOP and SIGN your posts
> - add some content: send "thanks!" and "ditto!" posts
John, list Members,
Im talking of ultimate stability from a rollover.
Of course it takes some mass to achieve it at extreme limits of this
rule, and a little extra leverage in the form of high
ballast ratio and a boost from a passing wave, and
a not outrageous sail area still clinging underneath would
be an assumed assist.
The actual wording I saw ,from a respected cruising designer,
was "Never have I seen a well found cruising yacht with an ultimate
stability problem
where the (ballasted long) keel draught exceeds half the WLL."
Like most rules of thumb its loose.
Methinks
'Well found' assumes no outrageous shape.
"Problem" assumes resonable conditions like not left
in a flat calm after being knocked over by a Tsunami.
In this regard I note they are testing the Vendee 60ft sleds with canting
keels.
They right from upside down ,but there no rig in
the test. Who are they trying to kid.?
With 800 - 2000sq feet of sail underneath a 20ft beam
on a flat deck, those babies wont go anywhere..
Unless they can ditch the rig (unlikely) or it comes off
in the prang . Most likely it will be still there, sometimes
tangled well down hanging from a few shrouds.
Jeff
Im talking of ultimate stability from a rollover.
Of course it takes some mass to achieve it at extreme limits of this
rule, and a little extra leverage in the form of high
ballast ratio and a boost from a passing wave, and
a not outrageous sail area still clinging underneath would
be an assumed assist.
The actual wording I saw ,from a respected cruising designer,
was "Never have I seen a well found cruising yacht with an ultimate
stability problem
where the (ballasted long) keel draught exceeds half the WLL."
Like most rules of thumb its loose.
Methinks
'Well found' assumes no outrageous shape.
"Problem" assumes resonable conditions like not left
in a flat calm after being knocked over by a Tsunami.
In this regard I note they are testing the Vendee 60ft sleds with canting
keels.
They right from upside down ,but there no rig in
the test. Who are they trying to kid.?
With 800 - 2000sq feet of sail underneath a 20ft beam
on a flat deck, those babies wont go anywhere..
Unless they can ditch the rig (unlikely) or it comes off
in the prang . Most likely it will be still there, sometimes
tangled well down hanging from a few shrouds.
Jeff
----- Original Message -----
From: John S Harper/Raleigh/IBM <jsharper@...>
To: <bolger@egroups.com>
Sent: Friday, November 03, 2000 5:12 AM
Subject: Re: [bolger] Shoal draft and self-righting
Interesting rule of thumb but how do you define self-righting? From 90
degrees? From 120 degrees? I ask because I've heard this rule of thumb
before.
Curious,
John
Jeff,
I know the virtue of RoT (Rules of Thumb) is that they are simple,
but I am missing some elements in what you propose. First, I assume that
draft in the RoT is overall draft and not "canoe body" draft? Second, the
RoT assumes that the CG of the ballast is as close as possible to the
maximum draft point (otherwise the excess draft is not necessary)? Third,
there is adequate reserve bouyancy above the WL to provide righting arm?
Fourth, there are no openings into the hull below the heeled waterline?
Personally, I like to leave level draft out of the equation entirely (and
consider that more from a perspective of displacement/underbody
configuration desired). For self-righting I look at weight distribution,
topsides/deck form and watertight integrety (the rig figures into both of
these considerably).
If self-righting and sailing stability were the only considerations, the
perfect boat would be only lightly ballasted (perhaps a grounding shoe),
flat on the bottom, and have a deck that is half of a cylinder. She can be
very light and need draw only inches. There would be no way to keep such a
vessel from regaining her feet under any circumstances short of ballasting
the end of her mast :)
I think Mr. Bolger's philosophy applies these ideas and makes interesting
and USEFUL boats out of them.
-----Original Message-----
From: Jeff Gilbert [mailto:jgilbert@...]
Sent: Thursday, November 02, 2000 10:07 AM
To:bolger@egroups.com
Subject: Re: [bolger] Shoal draft and self-righting
Rule of thumb:
You can attain self righting thru ballasting as
long as your draught is at least half Bmax at WL.
With a nice slim hull this may be as little as 3feet in a 28foot cruiser.
Jeff Gilbert
"Ballast is not a dirty word"
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
I know the virtue of RoT (Rules of Thumb) is that they are simple,
but I am missing some elements in what you propose. First, I assume that
draft in the RoT is overall draft and not "canoe body" draft? Second, the
RoT assumes that the CG of the ballast is as close as possible to the
maximum draft point (otherwise the excess draft is not necessary)? Third,
there is adequate reserve bouyancy above the WL to provide righting arm?
Fourth, there are no openings into the hull below the heeled waterline?
Personally, I like to leave level draft out of the equation entirely (and
consider that more from a perspective of displacement/underbody
configuration desired). For self-righting I look at weight distribution,
topsides/deck form and watertight integrety (the rig figures into both of
these considerably).
If self-righting and sailing stability were the only considerations, the
perfect boat would be only lightly ballasted (perhaps a grounding shoe),
flat on the bottom, and have a deck that is half of a cylinder. She can be
very light and need draw only inches. There would be no way to keep such a
vessel from regaining her feet under any circumstances short of ballasting
the end of her mast :)
I think Mr. Bolger's philosophy applies these ideas and makes interesting
and USEFUL boats out of them.
-----Original Message-----
From: Jeff Gilbert [mailto:jgilbert@...]
Sent: Thursday, November 02, 2000 10:07 AM
To:bolger@egroups.com
Subject: Re: [bolger] Shoal draft and self-righting
Rule of thumb:
You can attain self righting thru ballasting as
long as your draught is at least half Bmax at WL.
With a nice slim hull this may be as little as 3feet in a 28foot cruiser.
Jeff Gilbert
"Ballast is not a dirty word"
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
Interesting rule of thumb but how do you define self-righting? From 90
degrees? From 120 degrees? I ask because I've heard this rule of thumb
before.
Curious,
John
"Jeff Gilbert" <jgilbert@...> on 11/02/2000 01:06:50 PM
Please respond tobolger@egroups.com
To: <bolger@egroups.com>
cc:
Subject: Re: [bolger] Shoal draft and self-righting
Rule of thumb:
You can attain self righting thru ballasting as
long as your draught is at least half Bmax at WL.
With a nice slim hull this may be as little as 3feet in a 28foot cruiser.
Jeff Gilbert
"Ballast is not a dirty word"
degrees? From 120 degrees? I ask because I've heard this rule of thumb
before.
Curious,
John
"Jeff Gilbert" <jgilbert@...> on 11/02/2000 01:06:50 PM
Please respond tobolger@egroups.com
To: <bolger@egroups.com>
cc:
Subject: Re: [bolger] Shoal draft and self-righting
Rule of thumb:
You can attain self righting thru ballasting as
long as your draught is at least half Bmax at WL.
With a nice slim hull this may be as little as 3feet in a 28foot cruiser.
Jeff Gilbert
"Ballast is not a dirty word"
----- Original Message -----
From: Garth Battista <garth@...>
To: <bolger@egroups.com>
Sent: Friday, November 03, 2000 1:58 AM
Subject: [bolger] Shoal draft and self-righting
I don't get WoodenBoat magazine anymore -- but I notice on their web
page that the November/December issue features an article called
"Shoal Draft and Self-Righting: You Can Have Both."
Can anyone on the list who is a WoodenBoat subscriber give us a quick
summary of it?
All best,
Garth
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
Rule of thumb:
You can attain self righting thru ballasting as
long as your draught is at least half Bmax at WL.
With a nice slim hull this may be as little as 3feet in a 28foot cruiser.
Jeff Gilbert
"Ballast is not a dirty word"
You can attain self righting thru ballasting as
long as your draught is at least half Bmax at WL.
With a nice slim hull this may be as little as 3feet in a 28foot cruiser.
Jeff Gilbert
"Ballast is not a dirty word"
----- Original Message -----
From: Garth Battista <garth@...>
To: <bolger@egroups.com>
Sent: Friday, November 03, 2000 1:58 AM
Subject: [bolger] Shoal draft and self-righting
I don't get WoodenBoat magazine anymore -- but I notice on their web
page that the November/December issue features an article called
"Shoal Draft and Self-Righting: You Can Have Both."
Can anyone on the list who is a WoodenBoat subscriber give us a quick
summary of it?
All best,
Garth
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
I am sure that someone will beat me to the details, I just skimmed the
article two days ago, but he basically uses two designs to illustrate his
current design philosophy on shoal draft and seaworthiness.
One is William D. Jochems with which I assume all/most on the list are
familiar and the other St. Valery, a beautiful little lapstrake cruiser
asthetically based on some fishing boats from Normandy.
Both boats are relatively narrow, the width of the bottom is about 1/5 the
vessel's LOD. Both are also essentially (St. Valery's bilges are rounded but
VERY firm and low) flat bottomed with considerable rocker. Most
importantly, according to Mr. Bolger, is the fact that both boats are high
sided for their width, have low, bouyant(!) rigs, and centerline
hatches/vents.
He provides some stability curves based on conservative CG assumptions that
are quite reassuring (both boats have very small areas of negative
bouyancy).
The crux is that there is more than one way to achieve righting moment at
large angles of heel and he believes that the significant useability and
seaworthyness benefits of shallow draft call for shallow, narrow, high sided
boats with low rigs for cruisers.
In typical Woodenboat fashion the article is beautifully presented and there
is a significant sidebar on St. Valery (a design I had not seen before).
-----Original Message-----
From: Garth Battista [mailto:garth@...]
Sent: Thursday, November 02, 2000 6:59 AM
To:bolger@egroups.com
Subject: [bolger] Shoal draft and self-righting
I don't get WoodenBoat magazine anymore -- but I notice on their web
page that the November/December issue features an article called
"Shoal Draft and Self-Righting: You Can Have Both."
Can anyone on the list who is a WoodenBoat subscriber give us a quick
summary of it?
All best,
Garth
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
article two days ago, but he basically uses two designs to illustrate his
current design philosophy on shoal draft and seaworthiness.
One is William D. Jochems with which I assume all/most on the list are
familiar and the other St. Valery, a beautiful little lapstrake cruiser
asthetically based on some fishing boats from Normandy.
Both boats are relatively narrow, the width of the bottom is about 1/5 the
vessel's LOD. Both are also essentially (St. Valery's bilges are rounded but
VERY firm and low) flat bottomed with considerable rocker. Most
importantly, according to Mr. Bolger, is the fact that both boats are high
sided for their width, have low, bouyant(!) rigs, and centerline
hatches/vents.
He provides some stability curves based on conservative CG assumptions that
are quite reassuring (both boats have very small areas of negative
bouyancy).
The crux is that there is more than one way to achieve righting moment at
large angles of heel and he believes that the significant useability and
seaworthyness benefits of shallow draft call for shallow, narrow, high sided
boats with low rigs for cruisers.
In typical Woodenboat fashion the article is beautifully presented and there
is a significant sidebar on St. Valery (a design I had not seen before).
-----Original Message-----
From: Garth Battista [mailto:garth@...]
Sent: Thursday, November 02, 2000 6:59 AM
To:bolger@egroups.com
Subject: [bolger] Shoal draft and self-righting
I don't get WoodenBoat magazine anymore -- but I notice on their web
page that the November/December issue features an article called
"Shoal Draft and Self-Righting: You Can Have Both."
Can anyone on the list who is a WoodenBoat subscriber give us a quick
summary of it?
All best,
Garth
Bolger rules!!!
- no cursing
- stay on topic
- use punctuation
- add your comments at the TOP and SIGN your posts
- add some content: send "thanks!" and "ditto!" posts off-list.
Disregard my follow-up question -- I think Chris answered it while I
was typing it out.
Thanks to you both.
Garth
was typing it out.
Thanks to you both.
Garth
Paul -- thanks for the synopsis. As they say at the press
conferences: May I have a follow-up question?
So what does he suggest to make a shoal-draft boat self-righting,
without the use of a "lead mine"?
All best,
Garth
conferences: May I have a follow-up question?
So what does he suggest to make a shoal-draft boat self-righting,
without the use of a "lead mine"?
All best,
Garth
>
> Talks about the suitability of SD/SR boats over monohull lead mines
>
It was written by PCB and espouses shallow draft self righting sailboats.
Talks about the suitability of SD/SR boats over monohull lead mines,
including being safer at sea and able to enter areas off-limits to
deeper-draft vessels. Discusses St. Valery and Jochiem ??????? with pictures
and drawings. Good article but preaching to the choir here.
Paul W. Esterle
Capt'n Pauley Video Productions
423.989.3159
S/V Bryn Awel, Columbia 10.7
Bristol, Tenn. USA
http://www.captnpauley.bigstep.com
http://pages.preferred.com/~pesterle/
Talks about the suitability of SD/SR boats over monohull lead mines,
including being safer at sea and able to enter areas off-limits to
deeper-draft vessels. Discusses St. Valery and Jochiem ??????? with pictures
and drawings. Good article but preaching to the choir here.
Paul W. Esterle
Capt'n Pauley Video Productions
423.989.3159
S/V Bryn Awel, Columbia 10.7
Bristol, Tenn. USA
http://www.captnpauley.bigstep.com
http://pages.preferred.com/~pesterle/
----- Original Message -----
From: "Garth Battista" <garth@...>
To: <bolger@egroups.com>
Sent: Thursday, November 02, 2000 9:58 AM
Subject: [bolger] Shoal draft and self-righting
> I don't get WoodenBoat magazine anymore -- but I notice on their web
> page that the November/December issue features an article called
> "Shoal Draft and Self-Righting: You Can Have Both."
>
> Can anyone on the list who is a WoodenBoat subscriber give us a quick
> summary of it?
>
> All best,
> Garth
>
>
>
> Bolger rules!!!
> - no cursing
> - stay on topic
> - use punctuation
> - add your comments at the TOP and SIGN your posts
> - add some content: send "thanks!" and "ditto!" posts off-list.
>
I don't get WoodenBoat magazine anymore -- but I notice on their web
page that the November/December issue features an article called
"Shoal Draft and Self-Righting: You Can Have Both."
Can anyone on the list who is a WoodenBoat subscriber give us a quick
summary of it?
All best,
Garth
page that the November/December issue features an article called
"Shoal Draft and Self-Righting: You Can Have Both."
Can anyone on the list who is a WoodenBoat subscriber give us a quick
summary of it?
All best,
Garth