Re: Need hull design for one lunger
It's in BWAOM and is 14' x 6'7", round-bilged, designed for carvel
planking, 2,600 lb displacement, with a 10 hp engine in a cuddy
forward.
The prop. looks a good bit smaller than 14" and is offset from the
centreline. So the boat as designed -- and I'm not sure whether it's a
complete design -- might not suit the current requirement on several
counts, but it does show that PCB has designed a number of more-or-
less conventional small displacement powerboats.
Howard
So this --- Inbolger@yahoogroups.com, Bruce Hallman <bruce@h...>
wrote:
planking, 2,600 lb displacement, with a 10 hp engine in a cuddy
forward.
The prop. looks a good bit smaller than 14" and is offset from the
centreline. So the boat as designed -- and I'm not sure whether it's a
complete design -- might not suit the current requirement on several
counts, but it does show that PCB has designed a number of more-or-
less conventional small displacement powerboats.
Howard
So this --- Inbolger@yahoogroups.com, Bruce Hallman <bruce@h...>
wrote:
> > Is there a Bolger design in the 14' range that might be
> > appropriate for this 200# 2 hp engine? Ron Carter
>
> I am away from my books, but there is a Bolger
> design "Boy's Launch" which I recall was designed
> for the purpose of using a 'good old' diesel engine.
> Someone 'round here might chime in with more
> details of that boat.
> Is there a Bolger design in the 14' range that might beI am away from my books, but there is a Bolger
> appropriate for this 200# 2 hp engine? Ron Carter
design "Boy's Launch" which I recall was designed
for the purpose of using a 'good old' diesel engine.
Someone 'round here might chime in with more
details of that boat.
> I'd be surprised if you'd find a Bolger design, well a simple to buildSurprise!
> Bolger design, to use that engine.
Well, maybe. Speaking from memory, Bolger did design a power dory of
about 20' around the idea of using an Italian diesel outboard. He also
designed a 15' steel tug around a chinese Diesel of great weight and
small horsepower. And several small launches around inboards. And some
electric boats that might be adapted.
William Garden may be a designer to research. He has a great fondness
for old engines, and has also designed a power dory in the 20' range.
At two horsepower, I think you are looking at about 1000lbs all up weight.
I'd be surprised if you'd find a Bolger design, well a simple to build
Bolger design, to use that engine. With only 2hp and I suspect a huge
amount of torque, you'll likely want a very large diameter fairly flat
pitch prop to absorb the torque. That means you'll want a fairly deep
hull with a healthy cutaway aft to feed water to that big diameter
prop, not a hull shape that's easy to do with flat panels.
There may well be one of Bolger's more conventional designs that'll
work, he's designed some really pretty boats other than the simple
designs most often talked about here.
Bill H.
Dory construction because the bottom needs to be stout to stand up to
the vibration from the engine. Is there a Bolger design in the 14'
range that might be appropriate for this 200# 2 hp engine?
Bolger design, to use that engine. With only 2hp and I suspect a huge
amount of torque, you'll likely want a very large diameter fairly flat
pitch prop to absorb the torque. That means you'll want a fairly deep
hull with a healthy cutaway aft to feed water to that big diameter
prop, not a hull shape that's easy to do with flat panels.
There may well be one of Bolger's more conventional designs that'll
work, he's designed some really pretty boats other than the simple
designs most often talked about here.
Bill H.
> I have a Detroit single cylinder two stroke inboard engine from the1900-1910 period that is in need of a home. I'm thinking Sharpie or
Dory construction because the bottom needs to be stout to stand up to
the vibration from the engine. Is there a Bolger design in the 14'
range that might be appropriate for this 200# 2 hp engine?
>
> Ron Carter
> carter@t...
>
> [Non-text portions of this message have been removed]
--- Inbolger@yahoogroups.com, "Ron Carter" <carter@t...> wrote:
I have Gardners Dory Book and
> several of Atkin's designs but have been intrigued with Phil's
> approach to problem solving and was hoping that I'd overlooked
> something that this group could point me towards.
>
Have you looked at Work Skiff at Dynamite Payson's site?
http://www.instantboats.com/skiff18.htm
Perhaps a built- up skeg to protect the prop and a rudder to steer.
The great thing about this design is that you can use it with an
outboard if the one lunger is not satisfactory and you can a add a
cabin to it too if you like. It has tremendous load carrying
capacity and stability.
Fax PCB or email Dynamite and get their thoughts on it perhaps.
Nels
In a message dated 8/23/05 5:57:41 PM Central Daylight Time,carter@...
writes:
"Irreducible" to be a satisfactory design. It only calls for a 9"X9" wheel.
Weston Farmer (the Elder) was a great fan of slow rpm engines turning
"square" propellors. If you haven't read it, his "From My Old Boatshop", in various
editions, is a very good read. I have a one-sheet Diazo(?) print of the plans
for "Irreducible", a 10', lapstrake, one-lung-powered boat. It's a charming
piece of work, c.a. November, 1950.
Ciao for Niao,
Bill in MN
[Non-text portions of this message have been removed]
writes:
> I should have mentioned that the old engine is goverened by the sizeThat's a big wheel, and implies a large boat. Too large for Weston Farmer's
> of the wheel which for this engine is about 14".
"Irreducible" to be a satisfactory design. It only calls for a 9"X9" wheel.
Weston Farmer (the Elder) was a great fan of slow rpm engines turning
"square" propellors. If you haven't read it, his "From My Old Boatshop", in various
editions, is a very good read. I have a one-sheet Diazo(?) print of the plans
for "Irreducible", a 10', lapstrake, one-lung-powered boat. It's a charming
piece of work, c.a. November, 1950.
Ciao for Niao,
Bill in MN
[Non-text portions of this message have been removed]
You could also look at small steam launches e.g.
http://www.selway-fisher.com/Steamup20.htm
Howard
http://www.selway-fisher.com/Steamup20.htm
Howard
--- Inbolger@yahoogroups.com, "Ron Carter" <carter@t...> wrote:
> I should have mentioned that the old engine is goverened by the size
> of the wheel which for this engine is about 14". That is pretty
large
> and I would prefer a full deadwood skeg as much of my territory is
> relatively shallow with many beaching opportunities.
I should have mentioned that the old engine is goverened by the size
of the wheel which for this engine is about 14". That is pretty large
and I would prefer a full deadwood skeg as much of my territory is
relatively shallow with many beaching opportunities. Lily looks like
a possibility with bottom modification. I have Gardners Dory Book and
several of Atkin's designs but have been intrigued with Phil's
approach to problem solving and was hoping that I'd overlooked
something that this group could point me towards.
of the wheel which for this engine is about 14". That is pretty large
and I would prefer a full deadwood skeg as much of my territory is
relatively shallow with many beaching opportunities. Lily looks like
a possibility with bottom modification. I have Gardners Dory Book and
several of Atkin's designs but have been intrigued with Phil's
approach to problem solving and was hoping that I'd overlooked
something that this group could point me towards.
--- Inbolger@yahoogroups.com, Clyde Wisner <clydewis@c...> wrote:
> I tried my Lily with a Honda 2 and all it did was stand up a little
more
> so the difference between 1hp and 2hp is significant. Clyde
>
>
> Howard Stephenson wrote:
>
> > The electric boat idea makes sense to me too.
> >
I tried my Lily with a Honda 2 and all it did was stand up a little more
so the difference between 1hp and 2hp is significant. Clyde
Howard Stephenson wrote:
so the difference between 1hp and 2hp is significant. Clyde
Howard Stephenson wrote:
> The electric boat idea makes sense to me too.[Non-text portions of this message have been removed]
>
> There is a 16' foam-sandwich electric launch in Bolger's Different
> Boats -- but he said the arrangement for the propellor was not v.
> satisfactory.
>
> There is also Bolger's Lily. There is a picture on the home page of
> the Yahoo Bolger5 group and Google will find you several more. It's
> designed for use with an electric trolling motor, so you'd need to
> modify it for your purpose.
>
> Another possibility would be to scale up something like the 8'
> Elegant Punt to 14'. You'd have a hull that's easy to build and with
> so much displacement -- over half a ton -- that it would hardly
> notice a 200-lb engine. (I can see the possibilities with this
> because I use a 13' boat that's a scaled-up 8' pram).
>
> Howard
>
>
>
>
>
>
> 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
>
>
>
> SPONSORED LINKS
> Boating magazine
> <http://groups.yahoo.com/gads?t=ms&k=Boating+magazine&w1=Boating+magazine&w2=Boating+safety&w3=Alaska+outdoors&w4=Great+outdoors&c=4&s=83&.sig=2UfxDywpw-PWpjb_QAWBag>
> Boating safety
> <http://groups.yahoo.com/gads?t=ms&k=Boating+safety&w1=Boating+magazine&w2=Boating+safety&w3=Alaska+outdoors&w4=Great+outdoors&c=4&s=83&.sig=P64xoPu4Eyf9oN53Fz-bjg>
> Alaska outdoors
> <http://groups.yahoo.com/gads?t=ms&k=Alaska+outdoors&w1=Boating+magazine&w2=Boating+safety&w3=Alaska+outdoors&w4=Great+outdoors&c=4&s=83&.sig=CZnGxN1hhsm9362-vD7uJg>
>
> Great outdoors
> <http://groups.yahoo.com/gads?t=ms&k=Great+outdoors&w1=Boating+magazine&w2=Boating+safety&w3=Alaska+outdoors&w4=Great+outdoors&c=4&s=83&.sig=NDKY61Cox5lEhyoUyXqQTg>
>
>
>
> ------------------------------------------------------------------------
> YAHOO! GROUPS LINKS
>
> * Visit your group "bolger
> <http://groups.yahoo.com/group/bolger>" on the web.
>
> * To unsubscribe from this group, send an email to:
>bolger-unsubscribe@yahoogroups.com
> <mailto:bolger-unsubscribe@yahoogroups.com?subject=Unsubscribe>
>
> * Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> Service <http://docs.yahoo.com/info/terms/>.
>
>
> ------------------------------------------------------------------------
>
The electric boat idea makes sense to me too.
There is a 16' foam-sandwich electric launch in Bolger's Different
Boats -- but he said the arrangement for the propellor was not v.
satisfactory.
There is also Bolger's Lily. There is a picture on the home page of
the Yahoo Bolger5 group and Google will find you several more. It's
designed for use with an electric trolling motor, so you'd need to
modify it for your purpose.
Another possibility would be to scale up something like the 8'
Elegant Punt to 14'. You'd have a hull that's easy to build and with
so much displacement -- over half a ton -- that it would hardly
notice a 200-lb engine. (I can see the possibilities with this
because I use a 13' boat that's a scaled-up 8' pram).
Howard
There is a 16' foam-sandwich electric launch in Bolger's Different
Boats -- but he said the arrangement for the propellor was not v.
satisfactory.
There is also Bolger's Lily. There is a picture on the home page of
the Yahoo Bolger5 group and Google will find you several more. It's
designed for use with an electric trolling motor, so you'd need to
modify it for your purpose.
Another possibility would be to scale up something like the 8'
Elegant Punt to 14'. You'd have a hull that's easy to build and with
so much displacement -- over half a ton -- that it would hardly
notice a 200-lb engine. (I can see the possibilities with this
because I use a 13' boat that's a scaled-up 8' pram).
Howard
I am admittedly "shooting from the hip" here, but I would think that
the electric boat designs from Glen-L would be perfect, as the criteria
are the same - lots of weight in a displacement hull pushed by
relatively low HP. Look at
http://www.glen-l.com/designs/special/ampeater.htmlfor starters. There
are others. At such low speeds, sound deadening and fume inhalation are
design criteria to prioritize. JimG
the electric boat designs from Glen-L would be perfect, as the criteria
are the same - lots of weight in a displacement hull pushed by
relatively low HP. Look at
http://www.glen-l.com/designs/special/ampeater.htmlfor starters. There
are others. At such low speeds, sound deadening and fume inhalation are
design criteria to prioritize. JimG
--- Inbolger@yahoogroups.com, "Ron & Mary Carter" <carter@t...> wrote:
Dory construction because the bottom needs to be stout to stand up to
the vibration from the engine. Is there a Bolger design in the 14'
range that might be appropriate for this 200# 2 hp engine?
you. I'll second the Atkin's plans too. 14' seems short for that much
engine, shaft, hardware, etc.
Wayne
In the Swamp.
> I have a Detroit single cylinder two stroke inboard engine from the1900-1910 period that is in need of a home. I'm thinking Sharpie or
Dory construction because the bottom needs to be stout to stand up to
the vibration from the engine. Is there a Bolger design in the 14'
range that might be appropriate for this 200# 2 hp engine?
>Do you own John Gardner's The Dory Book? No doubt he has something for
> Ron Carter
> carter@t...
>
> [Non-text portions of this message have been removed]
you. I'll second the Atkin's plans too. 14' seems short for that much
engine, shaft, hardware, etc.
Wayne
In the Swamp.
I don't think Bolger's your man for this project. He's too much a man of
modern times and what you need is something from a bygone era. Some of
Weston Farmer's work might fit, or even better, look at the Atkins. I
particularly like XLNC.
http://www.boat-links.com/Atkinco/Utilities/XLNC.html
modern times and what you need is something from a bygone era. Some of
Weston Farmer's work might fit, or even better, look at the Atkins. I
particularly like XLNC.
http://www.boat-links.com/Atkinco/Utilities/XLNC.html
----- Original Message -----
From: "Ron & Mary Carter" <carter@...>
To: <bolger@yahoogroups.com>
Sent: Tuesday, August 23, 2005 10:03 AM
Subject: [bolger] Need hull design for one lunger
> I have a Detroit single cylinder two stroke inboard engine from the
1900-1910 period that is in need of a home. I'm thinking Sharpie or Dory
construction because the bottom needs to be stout to stand up to the
vibration from the engine. Is there a Bolger design in the 14' range that
might be appropriate for this 200# 2 hp engine?
>
> Ron Carter
>carter@...
>
> [Non-text portions of this message have been removed]
>
>
>
>
> 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
>
>
>
>
>
>
>
>
I have a Detroit single cylinder two stroke inboard engine from the 1900-1910 period that is in need of a home. I'm thinking Sharpie or Dory construction because the bottom needs to be stout to stand up to the vibration from the engine. Is there a Bolger design in the 14' range that might be appropriate for this 200# 2 hp engine?
Ron Carter
carter@...
[Non-text portions of this message have been removed]
Ron Carter
carter@...
[Non-text portions of this message have been removed]