Re: Health and fitness for sailors?
> I am forced from my lurk. My wife is 26 years younger than I am.**********************************
> My mother, after five marriages and three husbands is 93 and
> looking for number four. Any takers out there?
>
Mentioning your mother reminds me of an experience I once had.
I used to work for the Government and train and certify Arctic
Airport radio operators on how to observe and report the weather for
aviation purposes. Most are local residents who we now call Inuit
(meaning "the people") after we found out the word "Eskimo" was
politically incorrect. As soon as we changed over, the people
themselves began to refer to each other as Eskimos, just to tick us
kabloona off:-)
Anyway I digress. I was weathered in at one of these Arctice Airports
and while in the radio office having coffee with othere strandees
from "south" they were lamenting how they missed certain marriage
ammenaties. As a joke, I asked the radio operator, about whatever
happened to the old tradition of the north were one was offered a
bedtime companion when visiting each other?
Everybody's mouth dropped open at my obvious gaff regarding native
culture.
The radio operator thought for a moment and then said. "We still have
people in the village who believe in that tradition." and he gave me
this angelic smile. "Oh really? Who?" I asked. "My grandmother for
one." He replied.
Well you can guess who had the reddest face and who had the last
laugh:-)
Some of the boats in the north have small diesels and burn heating
fuel, and often motor sail. These older wooden vessels are now being
replaced by fiberglass and aluminum with huge outboards, often
carrying a snowmobile onboard.
In the High Arctic wood never rots so some of these boats may be well
over a hundred years old. I once won a photo contest with one of
these old boats next to a modern freight canoe, with the RCMP logo on
the side, a windscreen and steering station and a huge outboard on
the stern.
Nels (Trying to stay on topic:-)
On Tuesday 28 September 2004 07:45 am, Bruce Hallman wrote:
boblq
> > Or marry a ...I did that too!
>
> ... woman who is smarter than you.
boblq
On Tuesday 28 September 2004 05:11 am, Bruce Hector wrote:
I am forced from my lurk. My wife is 26 years younger than I am.
My mother, after five marriages and three husbands is 93 and
looking for number four. Any takers out there?
I consider myself a Bolgerista, of the most radical kind, i.e.
I am not building a Bolger boat but have designed and am
building a boat inspired by Bolger and my wife's traditions,
which are Filipino. See
http://www.osocomm.com/Bob/images/family.jpg
http://www.osocomm.com/Bob/banka.html
LOL,
boblq
> My personal favorite, although I must admit Elaine isn't too fond ofChuckle,
> it, is to marry a younger woman.
>
> Bruce Hector
I am forced from my lurk. My wife is 26 years younger than I am.
My mother, after five marriages and three husbands is 93 and
looking for number four. Any takers out there?
I consider myself a Bolgerista, of the most radical kind, i.e.
I am not building a Bolger boat but have designed and am
building a boat inspired by Bolger and my wife's traditions,
which are Filipino. See
http://www.osocomm.com/Bob/images/family.jpg
http://www.osocomm.com/Bob/banka.html
LOL,
boblq
>Bruce Hector wrote:Depending on jurisdiction, I bet a lot of tax could be saved
> Very cool.
>
> I see no reason she couldn't be self propelled by an outboard on a
> good forcast in sheltered waters.
>
> Simply mounted on a motor board, a 25 or 50 high thrust would make
> pretty economical maneuvering.
if you powered it with a yawl boat, such as with the
Double Eagle Yawlboat.
Very cool.
I see no reason she couldn't be self propelled by an outboard on a
good forcast in sheltered waters.
Simply mounted on a motor board, a 25 or 50 high thrust would make
pretty economical maneuvering.
Bruce Hector
I see no reason she couldn't be self propelled by an outboard on a
good forcast in sheltered waters.
Simply mounted on a motor board, a 25 or 50 high thrust would make
pretty economical maneuvering.
Bruce Hector
Bruce,
It is possible that the bow of this boat just went into a wave, but it may be trimmed down by the head. Bolger urges that his double ended sharpies be trimmen with the foot of the stem about 2 " above the water. If the boat in the picture was trimmed this way, the curl might well disappear.
John T
It is possible that the bow of this boat just went into a wave, but it may be trimmed down by the head. Bolger urges that his double ended sharpies be trimmen with the foot of the stem about 2 " above the water. If the boat in the picture was trimmed this way, the curl might well disappear.
John T
----- Original Message -----
From: Bruce Hallman
To:bolger@yahoogroups.com
Sent: Tuesday, September 28, 2004 5:39 PM
Subject: [bolger] Another Birdwatcher
http://hallman.org/bolger/bw.gif
...shows a picture of a birdwatcher offered for sale
back in 1996.
Look close and you see a spray of water curling
off the stem, but almost no wake.
I guess that is what happens with such a shallow draft boat.
Wishbone boom instead of the sprit, I think the sprit looks
better.
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
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[Non-text portions of this message have been removed]
Great advice from all.
I stretch and have a series of prescribed exercises involving stretching rubber tubing. Take a variety of over the counter pain killers too. No doubt this all helps my arthritis, but I make some effort to avoid sitting in cramped positions for lengthy periods of time, as the resulting pain exceeds any pleasure. I do a lot of the things I used to, but with some fairly minor adjustments. Old age; it's not for sissies!
I stretch and have a series of prescribed exercises involving stretching rubber tubing. Take a variety of over the counter pain killers too. No doubt this all helps my arthritis, but I make some effort to avoid sitting in cramped positions for lengthy periods of time, as the resulting pain exceeds any pleasure. I do a lot of the things I used to, but with some fairly minor adjustments. Old age; it's not for sissies!
----- Original Message -----
From: Peter Lenihan
To:bolger@yahoogroups.com
Sent: Tuesday, September 28, 2004 3:39 PM
Subject: [bolger] Re: Health and fitness for sailors?
--- Inbolger@yahoogroups.com, William Samson <willsamson@y...>
wrote:
> Hmph! Sounds to me like some of us old tars could do
> with a few stretching sessions to loosen up our nether
> regions!
Couldn't agree more! I would first suggest moving the cooler further
away so that a nice easy stretch is required to gain access to the
contents.
Next,I would suggest making sure that anything with less then 6%
alcohol content be heaved overboard and replaced with proper sailor
food.
Finally,and you will discover this on your own, it usually only
takes a few bottles of sailor food to render all the joints well
lubricated and/or the appropriate nevre receptors all but numbe to
both real and imagined creekings,crackings,bucklings and pains
various.
Trust me.......it works :-)
With a good and proper training regime(Google "Olympic
Training" ),you should be well on your way to a virtually pain-free
existance!
Women,both singular and plural, may not be a bad idea just so long
as you do not encourage them to serve you the sailor food thereby
negating any benefits from all the stretching.
Mind you,I've always believed that the best work-outs generally
begin after the box of invisible rope is brought out in the master-
stateroom.................arrrgh!Hold still thar lassy!!!!.......
Best of health to all!
Sincerely,
Peter Lenihan,un-horsed,un-booted but happy nevertheless,from along
the shores of the St.Lawrence.............
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
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[Non-text portions of this message have been removed]
http://hallman.org/bolger/bw.gif
...shows a picture of a birdwatcher offered for sale
back in 1996.
Look close and you see a spray of water curling
off the stem, but almost no wake.
I guess that is what happens with such a shallow draft boat.
Wishbone boom instead of the sprit, I think the sprit looks
better.
...shows a picture of a birdwatcher offered for sale
back in 1996.
Look close and you see a spray of water curling
off the stem, but almost no wake.
I guess that is what happens with such a shallow draft boat.
Wishbone boom instead of the sprit, I think the sprit looks
better.
Bolger has drawn a couple of nifty "Birdwatcher type" boats, but to get a reasonable height seat inside a Birdwatcher cabin requires a much bigger boat than I want to build or tow. The possible exception is Super Mouse, but it is too short to be a viable cruiser (too slow), too high to be particularly seaworthy, and, with a fat, lapstrake hull, too complex a building project for me.
John T
John T
----- Original Message -----
From: Jason Stancil
To:bolger@yahoogroups.com
Sent: Monday, September 27, 2004 9:12 AM
Subject: [bolger] Re: More On Leeboards
> My old hips (and back, knees, etc) preclude sitting on the bottom
of a boat for hours at a time. Therefore, regardless of its
remarkable reserve stability, Birdwatcher is not a viable choice for
me.
****************
Whalewatcher, 30 foot of birdwatcher and box mixed together. Full
blown seats for 7' tall people.
Anyone ever seen one of these?
Jason
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
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[Non-text portions of this message have been removed]
>[Illinois]...better retirement plan than a condo in Petersburg.At a fraction of the initial cost,
>
> HJ
but the resale value would near zero.
Bruce
I looked at this for a while then dropped back into your web site and
was sidetracked by Illinois once again. My eye was caught by the
following statement--"and endless square miles of empty dryout or
flooded coastal marshland on the East and Gulf Coasts at least, and
equally endless rivers, canals, estuaries," -- I was at Ft Stewart for a
while last year after mobilization and after flying and driving around
the coast between Charleston and Jacksonville I was amazed at just how
much remote and semi remote water areas there are with never a boat up
any of the hundreds of shallow inlets. You could spend a year exploring
and camping on that coast in a Sneakeasy and never see it all.
An Illinois to live on with a Sneakeasy tied up for running around, lot
better retirement plan than a condo in Petersburg.
HJ
Bruce Hallman wrote:
I looked at this for a while then dropped back into your web site and
was sidetracked by Illinois once again. My eye was caught by the
following statement--"and endless square miles of empty dryout or
flooded coastal marshland on the East and Gulf Coasts at least, and
equally endless rivers, canals, estuaries," -- I was at Ft Stewart for a
while last year after mobilization and after flying and driving around
the coast between Charleston and Jacksonville I was amazed at just how
much remote and semi remote water areas there are with never a boat up
any of the hundreds of shallow inlets. You could spend a year exploring
and camping on that coast in a Sneakeasy and never see it all.
An Illinois to live on with a Sneakeasy tied up for running around, lot
better retirement plan than a condo in Petersburg.
HJ
Bruce Hallman wrote:
>I have long been a fan, (loving to dream)
>of the Bolger shantyboat concepts. Plywood
>barge boxes, shaped to appear like boats.
>
>Illinois, Barge Houseboat, Puffer are three,
>
>here is a fourth, which until today has eluded me...
>
>http://hallman.org/bolger/houseboatconcept.gif
>
>
>
>
New to me too, Bruce.
It's an enlarged version of BWAOM's Barge Houseboat, 25'6" x 7'10".
Howard
It's an enlarged version of BWAOM's Barge Houseboat, 25'6" x 7'10".
Howard
--- Inbolger@yahoogroups.com, Bruce Hallman <bruce@h...> wrote:
> I have long been a fan, (loving to dream)
> of the Bolger shantyboat concepts. Plywood
> barge boxes, shaped to appear like boats.
>
> Illinois, Barge Houseboat, Puffer are three,
>
> here is a fourth, which until today has eluded me...
>
>http://hallman.org/bolger/houseboatconcept.gif
I have long been a fan, (loving to dream)
of the Bolger shantyboat concepts. Plywood
barge boxes, shaped to appear like boats.
Illinois, Barge Houseboat, Puffer are three,
here is a fourth, which until today has eluded me...
http://hallman.org/bolger/houseboatconcept.gif
of the Bolger shantyboat concepts. Plywood
barge boxes, shaped to appear like boats.
Illinois, Barge Houseboat, Puffer are three,
here is a fourth, which until today has eluded me...
http://hallman.org/bolger/houseboatconcept.gif
--- Inbolger@yahoogroups.com, William Samson <willsamson@y...>
wrote:
away so that a nice easy stretch is required to gain access to the
contents.
Next,I would suggest making sure that anything with less then 6%
alcohol content be heaved overboard and replaced with proper sailor
food.
Finally,and you will discover this on your own, it usually only
takes a few bottles of sailor food to render all the joints well
lubricated and/or the appropriate nevre receptors all but numbe to
both real and imagined creekings,crackings,bucklings and pains
various.
Trust me.......it works :-)
With a good and proper training regime(Google "Olympic
Training" ),you should be well on your way to a virtually pain-free
existance!
Women,both singular and plural, may not be a bad idea just so long
as you do not encourage them to serve you the sailor food thereby
negating any benefits from all the stretching.
Mind you,I've always believed that the best work-outs generally
begin after the box of invisible rope is brought out in the master-
stateroom.................arrrgh!Hold still thar lassy!!!!.......
Best of health to all!
Sincerely,
Peter Lenihan,un-horsed,un-booted but happy nevertheless,from along
the shores of the St.Lawrence.............
wrote:
> Hmph! Sounds to me like some of us old tars could doCouldn't agree more! I would first suggest moving the cooler further
> with a few stretching sessions to loosen up our nether
> regions!
away so that a nice easy stretch is required to gain access to the
contents.
Next,I would suggest making sure that anything with less then 6%
alcohol content be heaved overboard and replaced with proper sailor
food.
Finally,and you will discover this on your own, it usually only
takes a few bottles of sailor food to render all the joints well
lubricated and/or the appropriate nevre receptors all but numbe to
both real and imagined creekings,crackings,bucklings and pains
various.
Trust me.......it works :-)
With a good and proper training regime(Google "Olympic
Training" ),you should be well on your way to a virtually pain-free
existance!
Women,both singular and plural, may not be a bad idea just so long
as you do not encourage them to serve you the sailor food thereby
negating any benefits from all the stretching.
Mind you,I've always believed that the best work-outs generally
begin after the box of invisible rope is brought out in the master-
stateroom.................arrrgh!Hold still thar lassy!!!!.......
Best of health to all!
Sincerely,
Peter Lenihan,un-horsed,un-booted but happy nevertheless,from along
the shores of the St.Lawrence.............
you guys are all missing the boat, one who likes boats, that is the most
important quality, item from personal ads in our local paper, "Wanted, good
looking woman with canoe and dog, send picture of canoe and dog".
Grant, happily married to the sweetest boat mate ever (she's looking over my
shoulder)
on 9/28/04 10:39 AM, Bryant Owen atmariner@...wrote:
important quality, item from personal ads in our local paper, "Wanted, good
looking woman with canoe and dog, send picture of canoe and dog".
Grant, happily married to the sweetest boat mate ever (she's looking over my
shoulder)
on 9/28/04 10:39 AM, Bryant Owen atmariner@...wrote:
> Or marry a bigger woman. Or one with heavy duty "honey-dos".
>
>
> --- Inbolger@yahoogroups.com, "Bruce Hector" <bruce_hector@h...>
> wrote:
>> My personal favorite, although I must admit Elaine isn't too fond
> of
>> it, is to marry a younger woman.
>>
>> Bruce Hector
>
>
>
>
> Bolger rules!!!
> - no cursing, flaming, trolling, spamming, or flogging dead horses
> - stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
> - Pls add your comments at the TOP, SIGN your posts, and snip away
> - Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
> (978) 282-1349
> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
> - Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
> Yahoo! Groups Links
>
>
>
>
>
> Or marry a ...... woman who is smarter than you.
Or marry a bigger woman. Or one with heavy duty "honey-dos".
--- Inbolger@yahoogroups.com, "Bruce Hector" <bruce_hector@h...>
wrote:
--- Inbolger@yahoogroups.com, "Bruce Hector" <bruce_hector@h...>
wrote:
> My personal favorite, although I must admit Elaine isn't too fondof
> it, is to marry a younger woman.
>
> Bruce Hector
As in "Whatever doesn't kill you makes you stronger?"
Roger
derbyrm@...
http://derbyrm.mystarband.net/default.htm
Roger
derbyrm@...
http://derbyrm.mystarband.net/default.htm
----- Original Message -----
From: "Bruce Hector" <bruce_hector@...>
> My personal favorite, although I must admit Elaine isn't too fond of
> it, is to marry a younger woman.
>
> Bruce Hector
My personal favorite, although I must admit Elaine isn't too fond of
it, is to marry a younger woman.
Bruce Hector
it, is to marry a younger woman.
Bruce Hector
Phil often has pie for breakfast, a great New England
tradition.
tradition.
> Hmph! Sounds to me like some of us old tars could doLooking at the recent Birdwatcher photo's of septuagenarian
> with a few stretching sessions to loosen up our nether
> regions!
Phil Bolger, obviously spry and flexible...I wondered what his
secret is? Yoga? Rowing? Fewer beers?
Yeah! I've been looking for a virtual exercise group.
At least you could stand up.
Roger
derbyrm@...
http://derbyrm.mystarband.net/default.htm
At least you could stand up.
Roger
derbyrm@...
http://derbyrm.mystarband.net/default.htm
----- Original Message -----
From: "William Samson" <willsamson@...>
> --- pvanderwaart <pvanderwaart@...> wrote:
>
> >I sympathize about the hips and knees. My previous
> >boat was a Rhodes Mariner and the seat
> >was about 6 inches above the cockpit sole at
> >the helm position. Creaking was heard when
> >I stood up after a couple hours sailing.
>
> Hmph! Sounds to me like some of us old tars could do
> with a few stretching sessions to loosen up our nether
> regions!
>
> Should we start a YogaForBolgerites subgroup?
--- pvanderwaart <pvanderwaart@...> wrote:
with a few stretching sessions to loosen up our nether
regions!
Should we start a YogaForBolgerites subgroup?
Bill
Bill
___________________________________________________________ALL-NEW Yahoo! Messenger - all new features - even more fun!http://uk.messenger.yahoo.com
>I sympathize about the hips and knees. My previousHmph! Sounds to me like some of us old tars could do
>boat was a Rhodes
>Mariner and the seat was about 6 inches above the
>cockpit sole at
>the helm position. Creaking was heard when I stood up
>after a couple
>hours sailing.
with a few stretching sessions to loosen up our nether
regions!
Should we start a YogaForBolgerites subgroup?
Bill
Bill
___________________________________________________________ALL-NEW Yahoo! Messenger - all new features - even more fun!http://uk.messenger.yahoo.com
> Whalewatcher, 30 foot of birdwatcher and box mixed together. FullI don't think we've seen a picture of the one that was built.
> blown seats for 7' tall people. Anyone ever seen one of these?
Someone reported that PCB&F suggested the Jochems Schooner as a
better solution to a similar spec.
I sympathize about the hips and knees. My previous boat was a Rhodes
Mariner and the seat was about 6 inches above the cockpit sole at
the helm position. Creaking was heard when I stood up after a couple
hours sailing.
Peter
> My old hips (and back, knees, etc) preclude sitting on the bottomof a boat for hours at a time. Therefore, regardless of its
remarkable reserve stability, Birdwatcher is not a viable choice for
me.
****************
Whalewatcher, 30 foot of birdwatcher and box mixed together. Full
blown seats for 7' tall people.
Anyone ever seen one of these?
Jason
> My old hips (and back, knees, etc) preclude sitting on the bottomof a boat for hours at a time. Therefore, regardless of its
remarkable reserve stability, Birdwatcher is not a viable choice for
me.
****************
Whalewatcher, 30 foot of birdwatcher and box mixed together. Full
blown seats for 7' tall people.
Anyone ever seen one of these?
Jason
Somewhere, perhaps, there is the perfect boat for all waters and all sailors. I've owned a lot of boats, but I have not yet found the perfect boat. A Sea Pearl would be my choice if I were cruising in temperate climes and if I were camping on shore. In Florida, the Carolinas, and the Gulf Coast, this is a reasonable way to cruise. Up nawth, climate tends to be a good bit cooler (Southern cruisers do not consider a stove to be anything other than a way to heat up Dinty Moore) and land owners tend to be less hospitable. Different cruising grounds create different requirements, and what works in one area may be less than ideal in others.
My old hips (and back, knees, etc) preclude sitting on the bottom of a boat for hours at a time. Therefore, regardless of its remarkable reserve stability, Birdwatcher is not a viable choice for me. But most foks don't have my problems and Birdwatcher will work well for them. Ya pays yer money and yer takes yer choice!
John T
My old hips (and back, knees, etc) preclude sitting on the bottom of a boat for hours at a time. Therefore, regardless of its remarkable reserve stability, Birdwatcher is not a viable choice for me. But most foks don't have my problems and Birdwatcher will work well for them. Ya pays yer money and yer takes yer choice!
John T
----- Original Message -----
From: Nels
To:bolger@yahoogroups.com
Sent: Sunday, September 26, 2004 12:55 PM
Subject: [bolger] Re: More On Leeboards
--- Inbolger@yahoogroups.com, David Joseph <david@c...> wrote:
> What do you see as the limitations of the Birdwatcher. I love the
> concept and am trying to temper my enthusiasm. I have my own ideas
of
> it's limitations but I would like to hear other's ideas.
> David
>
The choice would have to be made individually depending on how and
where you planned to use the boat.
For example, in a northern climate like where I live, bugs and cool
nights are a major challenge that would lend my preference towards
the BW. Also sudden thunderstorms can come up in summer and the BW
would be safer as it could survive a beam ends knockdown better I
would guess. (I.E. Not fill with water.)
However, beach cruising in southern Florida with very light winds
and lots of hot sun, could be pretty oppresive inside that glass
house! The SP does not have the centerboard case intruding on the
interior although the partial decking takes away most of the internal
volume. The cat/ketch rig may give more adjustability to balancing
the rig, and the short spars may be easier to handle. The SP is
supposed to hove too in an exemplarary way. BW may tend to get blown
around more with no steadying sail - but I am not sure how that jib
works!
A second hand SP can be purchased and used immediately for aboutthe
same price or maybe even less than building a BW. Probably require
less maintenance as well. SP is basically a sailing canoe, BW is
primarily a camp cruiser.
I expect that BW would outperform SP as a sailboat.
Cheers, Nels (Preparing to duck after that last comment:-)
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
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[Non-text portions of this message have been removed]
--- Inbolger@yahoogroups.com, David Joseph <david@c...> wrote:
where you planned to use the boat.
For example, in a northern climate like where I live, bugs and cool
nights are a major challenge that would lend my preference towards
the BW. Also sudden thunderstorms can come up in summer and the BW
would be safer as it could survive a beam ends knockdown better I
would guess. (I.E. Not fill with water.)
However, beach cruising in southern Florida with very light winds
and lots of hot sun, could be pretty oppresive inside that glass
house! The SP does not have the centerboard case intruding on the
interior although the partial decking takes away most of the internal
volume. The cat/ketch rig may give more adjustability to balancing
the rig, and the short spars may be easier to handle. The SP is
supposed to hove too in an exemplarary way. BW may tend to get blown
around more with no steadying sail - but I am not sure how that jib
works!
A second hand SP can be purchased and used immediately for aboutthe
same price or maybe even less than building a BW. Probably require
less maintenance as well. SP is basically a sailing canoe, BW is
primarily a camp cruiser.
I expect that BW would outperform SP as a sailboat.
Cheers, Nels (Preparing to duck after that last comment:-)
> What do you see as the limitations of the Birdwatcher. I love theof
> concept and am trying to temper my enthusiasm. I have my own ideas
> it's limitations but I would like to hear other's ideas.The choice would have to be made individually depending on how and
> David
>
where you planned to use the boat.
For example, in a northern climate like where I live, bugs and cool
nights are a major challenge that would lend my preference towards
the BW. Also sudden thunderstorms can come up in summer and the BW
would be safer as it could survive a beam ends knockdown better I
would guess. (I.E. Not fill with water.)
However, beach cruising in southern Florida with very light winds
and lots of hot sun, could be pretty oppresive inside that glass
house! The SP does not have the centerboard case intruding on the
interior although the partial decking takes away most of the internal
volume. The cat/ketch rig may give more adjustability to balancing
the rig, and the short spars may be easier to handle. The SP is
supposed to hove too in an exemplarary way. BW may tend to get blown
around more with no steadying sail - but I am not sure how that jib
works!
A second hand SP can be purchased and used immediately for aboutthe
same price or maybe even less than building a BW. Probably require
less maintenance as well. SP is basically a sailing canoe, BW is
primarily a camp cruiser.
I expect that BW would outperform SP as a sailboat.
Cheers, Nels (Preparing to duck after that last comment:-)
What do you see as the limitations of the Birdwatcher. I love the
concept and am trying to temper my enthusiasm. I have my own ideas of
it's limitations but I would like to hear other's ideas.
David
Nels wrote:
concept and am trying to temper my enthusiasm. I have my own ideas of
it's limitations but I would like to hear other's ideas.
David
Nels wrote:
> --- Inbolger@yahoogroups.com, "John B. Trussell"[Non-text portions of this message have been removed]
> <John.Trussell@w...> wrote:
> At very slow speeds, the area of the blade is the primary variable in
> preventing leeway. There is simply not enough water flowing over the
> airfoil to generate lift. If area is the primary variable at low
> speeds, the shape, aspect ratio, and draft of the blades does not
> matter.
>
> Hi John,
>
> I did not find you'd gone on too long at all:-) I found your comments
> interesting and informative.
>
> SEA PEARL would to present an excellent basis for comparison between
> a commercially available small boat and BIRDWATCHER. This comparison
> may demonsrate what are advantageous in both designs as the SP21 hull
> is very close to a BW without the extended topsides. Each one has
> it's merits and limitations.
>
>http://www.sailingtexas.com/sseapearl21c.html
>
> Nels
>
>
>
>
>
> Bolger rules!!!
> - no cursing, flaming, trolling, spamming, or flogging dead horses
> - stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
> - Pls add your comments at the TOP, SIGN your posts, and snip away
> - Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930,
> Fax: (978) 282-1349
> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
> - Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
>
>
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--- Inbolger@yahoogroups.com, "John B. Trussell"
<John.Trussell@w...> wrote:
At very slow speeds, the area of the blade is the primary variable in
preventing leeway. There is simply not enough water flowing over the
airfoil to generate lift. If area is the primary variable at low
speeds, the shape, aspect ratio, and draft of the blades does not
matter.
Hi John,
I did not find you'd gone on too long at all:-) I found your comments
interesting and informative.
SEA PEARL would to present an excellent basis for comparison between
a commercially available small boat and BIRDWATCHER. This comparison
may demonsrate what are advantageous in both designs as the SP21 hull
is very close to a BW without the extended topsides. Each one has
it's merits and limitations.
http://www.sailingtexas.com/sseapearl21c.html
Nels
<John.Trussell@w...> wrote:
At very slow speeds, the area of the blade is the primary variable in
preventing leeway. There is simply not enough water flowing over the
airfoil to generate lift. If area is the primary variable at low
speeds, the shape, aspect ratio, and draft of the blades does not
matter.
Hi John,
I did not find you'd gone on too long at all:-) I found your comments
interesting and informative.
SEA PEARL would to present an excellent basis for comparison between
a commercially available small boat and BIRDWATCHER. This comparison
may demonsrate what are advantageous in both designs as the SP21 hull
is very close to a BW without the extended topsides. Each one has
it's merits and limitations.
http://www.sailingtexas.com/sseapearl21c.html
Nels
To mix a couple of different isssues---
On lee boards. A flat plate will generate lift at an "angle of attack". So will a curved airfoil. A big "wing" with a flat airfoil can generate the same amount of lift as a smaller "wing" with a curved airfoil, theough the big wing may have more surface drag, weigh more, and and be more difficult to construct. The problem with the underwater appendages (keel, cb, dagger board, or lee board) is that their function is to keep the boat from sliding sideways under the force of the wind (or "making leeway"). At very slow speeds, the area of the blade is the primary variable in preventing leeway. There is simply not enough water flowing over the airfoil to generate lift. If area is the primary variable at low speeds, the shape, aspect ratio, and draft of the blades does not matter. Long, shallow keels (like Old Shoe or Sweet Pea, or the long shallow centerboards found on skiffs) work just as well as narrow, deep blades. As boat speed increases, surface area drag becomes significant and airfoils start to generate lift. Bolger's combination of box keel and cenderboard would seem to combine some of the best features of each. And now i've gone on too long about that...
Sea Pearl's cat yawl rig can be trimmed to generate weather helm (and it is necessary to ease the mizzen when tacking or she will hang up in irons). Sea Pearls are reefed by rotating the masts and rolling the sails in. The main is the larger sail and I used to reef with the rule of 2 turns on the main for each 1 turn of the mizzen. Split rigs have a lot of advantages for a non-racing sailor. The sails are shorter (not as tall) and the center of effort is lower. By playing with trim, it is possible to dial in as much weather helm as desired and self steering is possible on some points of sail, under some conditions. The down side for the home builder is that there are twice as many spars to build. And now I really have gone on too long...
John T
On lee boards. A flat plate will generate lift at an "angle of attack". So will a curved airfoil. A big "wing" with a flat airfoil can generate the same amount of lift as a smaller "wing" with a curved airfoil, theough the big wing may have more surface drag, weigh more, and and be more difficult to construct. The problem with the underwater appendages (keel, cb, dagger board, or lee board) is that their function is to keep the boat from sliding sideways under the force of the wind (or "making leeway"). At very slow speeds, the area of the blade is the primary variable in preventing leeway. There is simply not enough water flowing over the airfoil to generate lift. If area is the primary variable at low speeds, the shape, aspect ratio, and draft of the blades does not matter. Long, shallow keels (like Old Shoe or Sweet Pea, or the long shallow centerboards found on skiffs) work just as well as narrow, deep blades. As boat speed increases, surface area drag becomes significant and airfoils start to generate lift. Bolger's combination of box keel and cenderboard would seem to combine some of the best features of each. And now i've gone on too long about that...
Sea Pearl's cat yawl rig can be trimmed to generate weather helm (and it is necessary to ease the mizzen when tacking or she will hang up in irons). Sea Pearls are reefed by rotating the masts and rolling the sails in. The main is the larger sail and I used to reef with the rule of 2 turns on the main for each 1 turn of the mizzen. Split rigs have a lot of advantages for a non-racing sailor. The sails are shorter (not as tall) and the center of effort is lower. By playing with trim, it is possible to dial in as much weather helm as desired and self steering is possible on some points of sail, under some conditions. The down side for the home builder is that there are twice as many spars to build. And now I really have gone on too long...
John T
----- Original Message -----
From: Nels
To:bolger@yahoogroups.com
Sent: Saturday, September 25, 2004 12:28 PM
Subject: [bolger] Re: More On Leeboards
--- Inbolger@yahoogroups.com, "John B. Trussell"
<John.Trussell@w...> wrote:
> Well, yes and no.
>
> I had a Sea Pearl with smallish, airfoil shaped leeboards and an
aluminum flat plate rudder (go figure). It suffered in light air
from leeway and from stalling, though it did much better as wind and
boat speed picked up.
>
Hi John,
I wonder if the SP would have fared better with the larger Dutch
boards like Bolger seemed to favor on some designs, such as the Scow
Schooner? These boards do not seem to stall as easily as the foil
shapes and also their CE does not shift aft as much when they are
raised in shallows.
From reading BWAOM, especially the chapter on CHEBACCO I get the
feeling that Bolger was impressed by the combination of a shallow
keel in combination with a centerboard. Originally he designed them
with a skeg to protect the rudder and then decided to lengthen it to
make it easier to load onto a trailer. Then he discovered that this
shallow keel held on pretty good by itself when going over a shallows
with the centerboard raised. Also it added some "bury" for the board
so it would not intrude on the cabin so much.
He then also began to understand that a box keel could give standing
headroom amidships on the centerline or allow even more bury for a
centerboard, and still give the flat bottom which he feels is most
effective with a fin keel. Or put in a csmall centerboard further
forward and balance it with a large rudder with end plate.
Then the swing wing added the extra performance potential that only
could be obtained previously with deep draft fin keels.
I can visualize that in a SEA PEARL, it might also benefit from a
larger rudder with an end plate. How was it for balance when reefed?
Did you have to reef both sails equally or could you adjust the
amount of reefing to make up for the lee helm when the boards were
partially raised?
To me this is the advantage of a cat yawl. The mizzen helps to
balance the helm when reefed.
Now, with Bolger's new redesign of MICRO and BWII are we going to see
more jibs on his designs?
Thanks for your contribution to the discussion. I find it very
illuminating. Bolger's statement about not getting crafty with high-
aspect-ratio boards seems to make sense.
Nels
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
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[Non-text portions of this message have been removed]
Also depends on aspect ratio. Full lift and then stall reached at
shallower angle with higher aspect ratio. Probably a good thing as you
don't have to drag boat sideways to get full lift. Look a pictures of
delta wing planes (low aspect ratio) landing. Full stall at HUGE angle.
One homebuilt one had a window in the floor so the pilot could see where
he was going when landing.
shallower angle with higher aspect ratio. Probably a good thing as you
don't have to drag boat sideways to get full lift. Look a pictures of
delta wing planes (low aspect ratio) landing. Full stall at HUGE angle.
One homebuilt one had a window in the floor so the pilot could see where
he was going when landing.
>Roger Derby wrote:
>
>Any foil will stall when its "angle-of-attack" exceeds a value that depends
>on the cross section (about 17 degrees for airfoils). When all of a boat's
>speed is to leeward (athwartships) then the fin is stalled. Get the boat
>moving and the angle is reduced.
>
>Perhaps some shimming of the leeboards would have helped?
>
If the boards stalled, then it was because they were TOO SMALL, not
because of a foil shape, at least any reasonable ones. I think when
using foil shapes there must be a temptation, since you can make them a
little smaller than flat ones, to make them too small. I'm guessing the
Dutch boards might well have solved the problem in light air, but so
would larger foiled ones.
because of a foil shape, at least any reasonable ones. I think when
using foil shapes there must be a temptation, since you can make them a
little smaller than flat ones, to make them too small. I'm guessing the
Dutch boards might well have solved the problem in light air, but so
would larger foiled ones.
>Nels wrote:
>snip
>
>
>I wonder if the SP would have fared better with the larger Dutch
>boards like Bolger seemed to favor on some designs, such as the Scow
>Schooner? These boards do not seem to stall as easily as the foil
>shapes and also their CE does not shift aft as much when they are
>raised in shallows.
>
>
This is a confirmation of something Bolger has written about several
times: that as boat-speed increases, lateral-plane area can be be
reduced and still provide sufficent "lift" (that word again).
Howard
--- Inbolger@yahoogroups.com, "John B. Trussell"
<John.Trussell@w...> wrote:
from leeway and from stalling, though it did much better as wind and
boat speed picked up.
times: that as boat-speed increases, lateral-plane area can be be
reduced and still provide sufficent "lift" (that word again).
Howard
--- Inbolger@yahoogroups.com, "John B. Trussell"
<John.Trussell@w...> wrote:
> I had a Sea Pearl with smallish, airfoil shaped leeboards and analuminum flat plate rudder (go figure). It suffered in light air
from leeway and from stalling, though it did much better as wind and
boat speed picked up.
Any foil will stall when its "angle-of-attack" exceeds a value that depends
on the cross section (about 17 degrees for airfoils). When all of a boat's
speed is to leeward (athwartships) then the fin is stalled. Get the boat
moving and the angle is reduced.
Perhaps some shimming of the leeboards would have helped?
Roger
derbyrm@...
http://derbyrm.mystarband.net/default.htm
on the cross section (about 17 degrees for airfoils). When all of a boat's
speed is to leeward (athwartships) then the fin is stalled. Get the boat
moving and the angle is reduced.
Perhaps some shimming of the leeboards would have helped?
Roger
derbyrm@...
http://derbyrm.mystarband.net/default.htm
----- Original Message -----
From: "Nels" <arvent@...>
> --- Inbolger@yahoogroups.com, "John B. Trussell"
> <John.Trussell@w...> wrote:
> > Well, yes and no.
> >
> > I had a Sea Pearl with smallish, airfoil shaped leeboards and an
> aluminum flat plate rudder (go figure). It suffered in light air
> from leeway and from stalling, though it did much better as wind and
> boat speed picked up.
--- Inbolger@yahoogroups.com, "John B. Trussell"
<John.Trussell@w...> wrote:
from leeway and from stalling, though it did much better as wind and
boat speed picked up.
I wonder if the SP would have fared better with the larger Dutch
boards like Bolger seemed to favor on some designs, such as the Scow
Schooner? These boards do not seem to stall as easily as the foil
shapes and also their CE does not shift aft as much when they are
raised in shallows.
From reading BWAOM, especially the chapter on CHEBACCO I get the
feeling that Bolger was impressed by the combination of a shallow
keel in combination with a centerboard. Originally he designed them
with a skeg to protect the rudder and then decided to lengthen it to
make it easier to load onto a trailer. Then he discovered that this
shallow keel held on pretty good by itself when going over a shallows
with the centerboard raised. Also it added some "bury" for the board
so it would not intrude on the cabin so much.
He then also began to understand that a box keel could give standing
headroom amidships on the centerline or allow even more bury for a
centerboard, and still give the flat bottom which he feels is most
effective with a fin keel. Or put in a csmall centerboard further
forward and balance it with a large rudder with end plate.
Then the swing wing added the extra performance potential that only
could be obtained previously with deep draft fin keels.
I can visualize that in a SEA PEARL, it might also benefit from a
larger rudder with an end plate. How was it for balance when reefed?
Did you have to reef both sails equally or could you adjust the
amount of reefing to make up for the lee helm when the boards were
partially raised?
To me this is the advantage of a cat yawl. The mizzen helps to
balance the helm when reefed.
Now, with Bolger's new redesign of MICRO and BWII are we going to see
more jibs on his designs?
Thanks for your contribution to the discussion. I find it very
illuminating. Bolger's statement about not getting crafty with high-
aspect-ratio boards seems to make sense.
Nels
<John.Trussell@w...> wrote:
> Well, yes and no.aluminum flat plate rudder (go figure). It suffered in light air
>
> I had a Sea Pearl with smallish, airfoil shaped leeboards and an
from leeway and from stalling, though it did much better as wind and
boat speed picked up.
>Hi John,
I wonder if the SP would have fared better with the larger Dutch
boards like Bolger seemed to favor on some designs, such as the Scow
Schooner? These boards do not seem to stall as easily as the foil
shapes and also their CE does not shift aft as much when they are
raised in shallows.
From reading BWAOM, especially the chapter on CHEBACCO I get the
feeling that Bolger was impressed by the combination of a shallow
keel in combination with a centerboard. Originally he designed them
with a skeg to protect the rudder and then decided to lengthen it to
make it easier to load onto a trailer. Then he discovered that this
shallow keel held on pretty good by itself when going over a shallows
with the centerboard raised. Also it added some "bury" for the board
so it would not intrude on the cabin so much.
He then also began to understand that a box keel could give standing
headroom amidships on the centerline or allow even more bury for a
centerboard, and still give the flat bottom which he feels is most
effective with a fin keel. Or put in a csmall centerboard further
forward and balance it with a large rudder with end plate.
Then the swing wing added the extra performance potential that only
could be obtained previously with deep draft fin keels.
I can visualize that in a SEA PEARL, it might also benefit from a
larger rudder with an end plate. How was it for balance when reefed?
Did you have to reef both sails equally or could you adjust the
amount of reefing to make up for the lee helm when the boards were
partially raised?
To me this is the advantage of a cat yawl. The mizzen helps to
balance the helm when reefed.
Now, with Bolger's new redesign of MICRO and BWII are we going to see
more jibs on his designs?
Thanks for your contribution to the discussion. I find it very
illuminating. Bolger's statement about not getting crafty with high-
aspect-ratio boards seems to make sense.
Nels
Well, yes and no.
I had a Sea Pearl with smallish, airfoil shaped leeboards and an aluminum flat plate rudder (go figure). It suffered in light air from leeway and from stalling, though it did much better as wind and boat speed picked up.
The problem with a tip plate (in effect, a winglet) on a pivoting board is that as the board pivots, the winglet becomes a brake. The end plate improves the efficiency of the bottom portion of the foil; you can acheive the same effect (in terms of "lift"), by making the foil longer. Whether the longer foil has more surface drag than that of the tip plate is uncertain, but a shorter foil with a tip plate certainly draws less water.
One other problem which I encountered while trying to add a tip plate to a balanced rudder (which extends under the boat) is that the added bouyancy of the tip plate caused the rudder to float up enough on its pintels to jam against the bottom of the boat! Happily, it wasn't blowing hard. I hate it when a plan falls apart!
John T
I had a Sea Pearl with smallish, airfoil shaped leeboards and an aluminum flat plate rudder (go figure). It suffered in light air from leeway and from stalling, though it did much better as wind and boat speed picked up.
The problem with a tip plate (in effect, a winglet) on a pivoting board is that as the board pivots, the winglet becomes a brake. The end plate improves the efficiency of the bottom portion of the foil; you can acheive the same effect (in terms of "lift"), by making the foil longer. Whether the longer foil has more surface drag than that of the tip plate is uncertain, but a shorter foil with a tip plate certainly draws less water.
One other problem which I encountered while trying to add a tip plate to a balanced rudder (which extends under the boat) is that the added bouyancy of the tip plate caused the rudder to float up enough on its pintels to jam against the bottom of the boat! Happily, it wasn't blowing hard. I hate it when a plan falls apart!
John T
----- Original Message -----
From: Lincoln Ross
To:bolger@yahoogroups.com
Sent: Friday, September 24, 2004 10:09 PM
Subject: [bolger] Re: More On Leeboards
Gasp. I'm going to disagree with the great man a little. If someone
really does their homework on this, it will work. The temptation might
be to go too small on the boards. To really go to a high aspect ratio,
you have to go deep. If not, area will be too small. But if existing
board is 3:1 or so already, it ought to be possible to go to a skinnier
board with a real foil section. The higher aspect ratio means that you
get more lift per degree, partially making up for the greater angle of
attack at stall. An endplate would help here, too. Stall of board will
be harsher when you screw up, though, and I suppose seaweed effects
might be worse. I think I've noticed this in RC model sailboats with
very long, skinny keels. I suspect he's talking about assymmetrical
leeboard shapes, though, and in that case I"m sure there's a real can of
worms opened up in terms of always having to raise and lower when
tacking, and getting trim angle right.
P.S. The windward performance of model boats is pretty impressive.
>Message: 15
> Date: Fri, 24 Sep 2004 16:10:29 -0000
> From: "Nels" <arvent@...>
>Subject: More On Leeboards
>
>snipI wouldn't
>advise anybody get crafty with high-aspect-ratio boards with
>sophisticated foil shapes. Among other problems these have to work at
>high angles of incidence to be effective at low speeds. Without the
>slots and flaps of aircraft, they may stall and let the boat sag to
>leeward. Even if they don't stall, the drag of the boards and hull
>will be large as the boat is pushed along partly sideways.
>
snip
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
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c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Non-text portions of this message have been removed]
Gasp. I'm going to disagree with the great man a little. If someone
really does their homework on this, it will work. The temptation might
be to go too small on the boards. To really go to a high aspect ratio,
you have to go deep. If not, area will be too small. But if existing
board is 3:1 or so already, it ought to be possible to go to a skinnier
board with a real foil section. The higher aspect ratio means that you
get more lift per degree, partially making up for the greater angle of
attack at stall. An endplate would help here, too. Stall of board will
be harsher when you screw up, though, and I suppose seaweed effects
might be worse. I think I've noticed this in RC model sailboats with
very long, skinny keels. I suspect he's talking about assymmetrical
leeboard shapes, though, and in that case I"m sure there's a real can of
worms opened up in terms of always having to raise and lower when
tacking, and getting trim angle right.
P.S. The windward performance of model boats is pretty impressive.
really does their homework on this, it will work. The temptation might
be to go too small on the boards. To really go to a high aspect ratio,
you have to go deep. If not, area will be too small. But if existing
board is 3:1 or so already, it ought to be possible to go to a skinnier
board with a real foil section. The higher aspect ratio means that you
get more lift per degree, partially making up for the greater angle of
attack at stall. An endplate would help here, too. Stall of board will
be harsher when you screw up, though, and I suppose seaweed effects
might be worse. I think I've noticed this in RC model sailboats with
very long, skinny keels. I suspect he's talking about assymmetrical
leeboard shapes, though, and in that case I"m sure there's a real can of
worms opened up in terms of always having to raise and lower when
tacking, and getting trim angle right.
P.S. The windward performance of model boats is pretty impressive.
>Message: 15snip
> Date: Fri, 24 Sep 2004 16:10:29 -0000
> From: "Nels" <arvent@...>
>Subject: More On Leeboards
>
>snipI wouldn't
>advise anybody get crafty with high-aspect-ratio boards with
>sophisticated foil shapes. Among other problems these have to work at
>high angles of incidence to be effective at low speeds. Without the
>slots and flaps of aircraft, they may stall and let the boat sag to
>leeward. Even if they don't stall, the drag of the boards and hull
>will be large as the boat is pushed along partly sideways.
>
"Each leeboard should be equal in area to whatever the boat would
need in a centerboard or fin keel. But if the boards are braced well
clear of the hull, as here, the area can be figured from the
waterline so the boards' draft when lowered will be less. I wouldn't
advise anybody get crafty with high-aspect-ratio boards with
sophisticated foil shapes. Among other problems these have to work at
high angles of incidence to be effective at low speeds. Without the
slots and flaps of aircraft, they may stall and let the boat sag to
leeward. Even if they don't stall, the drag of the boards and hull
will be large as the boat is pushed along partly sideways. An
aircraft designer doesn't care how high the drag is when his plane is
flying low and slow, but a sailboat ought to aim for low resistance
in light air. Leeboard area should be something upwards of twice what
aeronautical-type calculations may suggest. (If someone is thinking
of gliders, they are gravity powered, and if you fly in one you'll
find, especially when it comes in to land, that it doesn't fly
slowly!)" From BWAOM page 205
He then goes on to relate several other problems with leeboards,
including conversions from centerboarders to leeboards and why they
usually are not successful.
Not sure what others have experienced, but I find the book to be an
almost complete design course. Each chapter providing a lesson. I
don't imagine this was unintentional. Nothing Bolger does is
unintentional:-)
Cheers, Nels
need in a centerboard or fin keel. But if the boards are braced well
clear of the hull, as here, the area can be figured from the
waterline so the boards' draft when lowered will be less. I wouldn't
advise anybody get crafty with high-aspect-ratio boards with
sophisticated foil shapes. Among other problems these have to work at
high angles of incidence to be effective at low speeds. Without the
slots and flaps of aircraft, they may stall and let the boat sag to
leeward. Even if they don't stall, the drag of the boards and hull
will be large as the boat is pushed along partly sideways. An
aircraft designer doesn't care how high the drag is when his plane is
flying low and slow, but a sailboat ought to aim for low resistance
in light air. Leeboard area should be something upwards of twice what
aeronautical-type calculations may suggest. (If someone is thinking
of gliders, they are gravity powered, and if you fly in one you'll
find, especially when it comes in to land, that it doesn't fly
slowly!)" From BWAOM page 205
He then goes on to relate several other problems with leeboards,
including conversions from centerboarders to leeboards and why they
usually are not successful.
Not sure what others have experienced, but I find the book to be an
almost complete design course. Each chapter providing a lesson. I
don't imagine this was unintentional. Nothing Bolger does is
unintentional:-)
Cheers, Nels