Re: [bolger] Re: Stretched Sitka Explorer/Topaz line of boats
Whats the MAIB for Weston Martyr? Or is there one?
HJ
ANDREW AIREY wrote:
HJ
ANDREW AIREY wrote:
>Hi
>
>Are we talking Weston Martyr here.I wrote to PB&F a
>few weeks ago with a spec for a sailing canal boat and
>then raised the matter with the group.Both drew my
>attention to Weston Martyr which may be a bit longer
>than I had envisaged(I was looking for something in
>the 25-36'range).However,since we are basically
>talking about a narrow boat with sails I'm at a loss
>
>
Philip Smith <pbs@...> wrote:
"Sinking can ruin your whole day."
--Unless you've got a submarine!---now there's a thought, someone should commission Bolger to design a smallish 35'-45'semi submersible craft with bow viewing windows that can only submerge till the hull is completely under water, leaving just a conning tower above!
Hugo Tyson, Launceston, Tasmania, Australia.
---------------------------------
Find local movie times and trailers on Yahoo! Movies.
[Non-text portions of this message have been removed]
"Sinking can ruin your whole day."
--Unless you've got a submarine!---now there's a thought, someone should commission Bolger to design a smallish 35'-45'semi submersible craft with bow viewing windows that can only submerge till the hull is completely under water, leaving just a conning tower above!
Hugo Tyson, Launceston, Tasmania, Australia.
---------------------------------
Find local movie times and trailers on Yahoo! Movies.
[Non-text portions of this message have been removed]
There is no doubt that lots of steel boats are built
with foam right on the steel. That doesn't make it a
best practice.
I used to belong to the Metal Boat Society, which, if
you are going to build a metal boat, is a good
membership to have. I've gone to a couple of their
annual meetings. I learned a lot.
Personally I think that PB&F have the correct idea.
Being able to inspect the hull on both sides is
important. I'd want to be able to inspect the hull in
my boat.
Another value of belonging to the Metal Boat Society
is that there are semi-finished metal boats for sale
for pennies on the dollar. Some of these sales are
heart breaking, the guy ran out of health or even life
before he got his boat built. The widow or kids are
now trying to sell the boat.
Of course you may wonder how good the welds are. Most
of the boat bulders are learning how to weld on their
very own boat. Porous welds are another good reason
why you might want to check both sides of the hull. If
all your welds are good, then removeable insulation
might be a good idea.
Many of the boats that end up for sale are Sprays.
PB&F aren't too fond of the Spray series. PB&F
designed Anti-Spray, 48 feet as I recall. If I've got
my Bolger designs straight, there's one being built
just outside Columbus, Indiana. Last I heard they were
making really rapid progress.
Anyway, you pays your money and you takes your
choices.
Phil Smith
--- "Phil S." <newbarndesign@...> wrote:
with foam right on the steel. That doesn't make it a
best practice.
I used to belong to the Metal Boat Society, which, if
you are going to build a metal boat, is a good
membership to have. I've gone to a couple of their
annual meetings. I learned a lot.
Personally I think that PB&F have the correct idea.
Being able to inspect the hull on both sides is
important. I'd want to be able to inspect the hull in
my boat.
Another value of belonging to the Metal Boat Society
is that there are semi-finished metal boats for sale
for pennies on the dollar. Some of these sales are
heart breaking, the guy ran out of health or even life
before he got his boat built. The widow or kids are
now trying to sell the boat.
Of course you may wonder how good the welds are. Most
of the boat bulders are learning how to weld on their
very own boat. Porous welds are another good reason
why you might want to check both sides of the hull. If
all your welds are good, then removeable insulation
might be a good idea.
Many of the boats that end up for sale are Sprays.
PB&F aren't too fond of the Spray series. PB&F
designed Anti-Spray, 48 feet as I recall. If I've got
my Bolger designs straight, there's one being built
just outside Columbus, Indiana. Last I heard they were
making really rapid progress.
Anyway, you pays your money and you takes your
choices.
Phil Smith
--- "Phil S." <newbarndesign@...> wrote:
>http://us.click.yahoo.com/5iY7fA/6WnJAA/Y3ZIAA/_0TolB/TM
>
> > PB&F believe that sprayed on insulation is very
> > dangerous in steel boats. The problem is rust.
> > Especially secret rust making a hole from the
> inside
> > and causing you to sink at some inconvenient time
> and
> > place.
>
> I have heard this before, but from what I have read
> on the Orgami
> Steel Boat Group, Sprayed in foam shouldn't be an
> issue if the inside
> of the boat is properly coated, and you don't foam
> below the water
> line either. Again I have no practical experiance
> with foamed steel
> boats but have read quite a bit on the subject.
>
> I like the idea of building in steel because it is
> faster, can be done
> in a wider variety of temperatures and even with the
> huge rise in
> steel prices is cheaper than marine grade ply and
> epoxy. Also given
> how lousy the weather is here in NY, a steel hull
> would allow some
> winter cruising, and not worry much about ice. Also
> I think my
> navigation skills could use the extra safety factor,
> especially in the
> rocky Thousand Islands area.
> regards
> Phil
>
>
>
>
>
> ------------------------ Yahoo! Groups Sponsor
> --------------------~-->
> Give the gift of life to a sick child.
> Support St. Jude Children's Research Hospital's
> 'Thanks & Giving.'
>
>--------------------------------------------------------------------~->
>
>
> 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
>
>
>bolger-unsubscribe@yahoogroups.com
>
>
>
>
>
>
>
Sinking can ruin your whole day.
Phil Smith
--- "Bruce C. Dillahunty" <bdillahu@...>
wrote:
Phil Smith
--- "Bruce C. Dillahunty" <bdillahu@...>
wrote:
>http://us.click.yahoo.com/6iY7fA/5WnJAA/Y3ZIAA/_0TolB/TM
> Philip Smith wrote:
>
> >PB&F believe that sprayed on insulation is very
> >dangerous in steel boats. The problem is rust.
> >Especially secret rust making a hole from the
> inside
> >and causing you to sink at some inconvenient time
> and
> >place.
> >
> >
> >
> As opposed to some convenient time and place :-)
>
> I love it!
>
> Bruce
>
>
>
> ------------------------ Yahoo! Groups Sponsor
> --------------------~-->
> Help save the life of a child. Support St. Jude
> Children's Research Hospital's
> 'Thanks & Giving.'
>
>--------------------------------------------------------------------~->
>
>
> 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
>
>
>bolger-unsubscribe@yahoogroups.com
>
>
>
>
>
>
>
Philip Smith wrote:
I love it!
Bruce
>PB&F believe that sprayed on insulation is veryAs opposed to some convenient time and place :-)
>dangerous in steel boats. The problem is rust.
>Especially secret rust making a hole from the inside
>and causing you to sink at some inconvenient time and
>place.
>
>
>
I love it!
Bruce
> PB&F believe that sprayed on insulation is veryI have heard this before, but from what I have read on the Orgami
> dangerous in steel boats. The problem is rust.
> Especially secret rust making a hole from the inside
> and causing you to sink at some inconvenient time and
> place.
Steel Boat Group, Sprayed in foam shouldn't be an issue if the inside
of the boat is properly coated, and you don't foam below the water
line either. Again I have no practical experiance with foamed steel
boats but have read quite a bit on the subject.
I like the idea of building in steel because it is faster, can be done
in a wider variety of temperatures and even with the huge rise in
steel prices is cheaper than marine grade ply and epoxy. Also given
how lousy the weather is here in NY, a steel hull would allow some
winter cruising, and not worry much about ice. Also I think my
navigation skills could use the extra safety factor, especially in the
rocky Thousand Islands area.
regards
Phil
Hi
Are we talking Weston Martyr here.I wrote to PB&F a
few weeks ago with a spec for a sailing canal boat and
then raised the matter with the group.Both drew my
attention to Weston Martyr which may be a bit longer
than I had envisaged(I was looking for something in
the 25-36'range).However,since we are basically
talking about a narrow boat with sails I'm at a loss
to
understand the problems with insulation since plenty
of people live on narrow boats over the winter - two
of my mates did for several years.I gather that you
want a little pot stove and as much driftwood as you
can lay your hands on.Most narrow boats seem to be
lined with wood although my limited experience would
suggest that it's not removeable.If you're running an
engine for propulsion or to power the electrickery
then there's plenty of waste heat which could
potentially be utilised.
Krs
Andrew Airey
Ps Have any WM's ever been built
Pps Would the AS29/39 be susceptible to slimming down
--- Philip Smith <pbs@...> wrote:
---------------------------------
I've had two of these conversations with PB&F.
The Transatlantic Route for boats with limited fuel
capacity they recommended was to go north along the
Canadian Coastline, Greenland, Iceland and down to
Scotland. You'd need to be extra vigilant watching
your fuel consumption and distances made good and
remaining. Very few fuel depots between stops.
I'm enamored with steel boat construction too. When
PB&F and I were working out the details of my long
delayed and probably dead ocean crossing, canal
cruising middle class apartment, steel was found to be
difficult or perhaps imposible. The problem was with
insulation and getting under the bridges and through
the tunnels on the canals of France.
PB&F believe that sprayed on insulation is very
dangerous in steel boats. The problem is rust.
Especially secret rust making a hole from the inside
and causing you to sink at some inconvenient time and
place.
PB& F developed a system of pannelized insulation for
steel boats. The pannels don't touch the steel skin
and are all completely removeable so that the entire
structure can, with some labor and inconvenience, be
inspected every so many years when either you or the
insurance company want to know or every time the boat
gets sold and surveyed. Pretty damn ingenious I
thought.
The problem with the insulating pannels and the French
canals was keeping the air draught or height above
waterline low enough to allow people and pannels to
exist inside the boat. PB&F spent a lot of time and
head scratching trying to figure this out. They even
suggested cutting through the thick bottom of the
boat, 1/2" plate as I recall, and welding plate
outside, on the upside of the bottom's rocker, to get
enough clearance for the engine's oil pan. (To get
this far in the design process indicates the kind of
thought and effort that Phil and Susanne had put into
the concept.)
They still couldn't get it to work to their
satisfaction. Then they said, "Five inches of plywood
is pretty strong." So it is.
If air draught isn't a problem for your goals and
destinations, then PB&F could design or modify one of
their current designs to do what you want. Get some
money together and get in the queue. All you need is a
fax and a checkbook. Oh, time. You need some time too.
Unfortunately for all involved, the money I had
already counted and allocated for building the boat,
failed to materialize. PB&F won't design a boat that
isn't going to get built, so I haven't gotten to enjoy
the irregularly occuring but inevitably fascinating
two hour conversations with Susanne for a couple of
years.
My design was pure motor boat. If you are interested
in a motor sailer with ocean crossing capabilities,
the Kolb Cruiser is a very attractive design. My wants
and "needs" have changed as kids have grown and
relationships withered. A modified Kolb Cruiser with a
Deutz might be perfect.
I've still got an aircooled Deutz sitting in storage
that would work on either a modified Cabotian or a
modified Kolb Cruiser or the modified Sitka Explorer.
I'm glad I didn't buy the twelve cylinder monster that
my design could have used. It was a good deal on Ebay,
but not that good of a deal now that I can't use it.
If I chose I'd have PB&F perform the modifications.
I'm not clever or experienced enough to do it on my
own. I like my boats to float upright and on their
waterlines.
While I was confident that the money for my boat was
still enroute I visited the Deutz factory across the
Rhine from Cologne. Very interesting tour. Those
engines work as advertised. As long as they've got
enough cooling air and clean diesel fuel they are
close to perpetual motion. They aren't very popular in
North America and bargains can be found on Ebay. They
are popular enough in North America to say nothing of
the rest of the world that parts are available. Plus
they are modular so you can keep a relatively small
inventory of parts and fix almost anything including
replacing a cylinder.
My design was too big for PB&F's British sail drive
that they like so well. They specified the Schottel
Rudderpropeller. An amazing piece of engineering, 360
degree vectoring thrust and about as reliable as a
hammer. Many of the Bateaux Mouches in Paris use
these. The Schottel Rudderpropellers are one of the
reasons the Bateau Mouches can turn around in not much
more than their own length. They can do this no matter
what the current or wind is doing. According to the
head engineer on the Bateau Mouches I visited, the
Schottels are quite robust, reasonably easy to repair
when you get a tree trunk caught in the propeller, and
very reliable. Visited the Schottel factory too.
Schottel makes huge electric drives for ocean liners
and tug boats. All vectoring thrust so the liners
don't need the tugs and the Schottel tugs and pull in
any direction.
Life is full of changes. Maybe a Tahiti and now is
better than something else later.
--- Ken Kongslie <jaguar215@...> wrote:
- 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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To visit your group on the web, go to:
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bolger-unsubscribe@yahoogroups.com
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Are we talking Weston Martyr here.I wrote to PB&F a
few weeks ago with a spec for a sailing canal boat and
then raised the matter with the group.Both drew my
attention to Weston Martyr which may be a bit longer
than I had envisaged(I was looking for something in
the 25-36'range).However,since we are basically
talking about a narrow boat with sails I'm at a loss
to
understand the problems with insulation since plenty
of people live on narrow boats over the winter - two
of my mates did for several years.I gather that you
want a little pot stove and as much driftwood as you
can lay your hands on.Most narrow boats seem to be
lined with wood although my limited experience would
suggest that it's not removeable.If you're running an
engine for propulsion or to power the electrickery
then there's plenty of waste heat which could
potentially be utilised.
Krs
Andrew Airey
Ps Have any WM's ever been built
Pps Would the AS29/39 be susceptible to slimming down
--- Philip Smith <pbs@...> wrote:
---------------------------------
I've had two of these conversations with PB&F.
The Transatlantic Route for boats with limited fuel
capacity they recommended was to go north along the
Canadian Coastline, Greenland, Iceland and down to
Scotland. You'd need to be extra vigilant watching
your fuel consumption and distances made good and
remaining. Very few fuel depots between stops.
I'm enamored with steel boat construction too. When
PB&F and I were working out the details of my long
delayed and probably dead ocean crossing, canal
cruising middle class apartment, steel was found to be
difficult or perhaps imposible. The problem was with
insulation and getting under the bridges and through
the tunnels on the canals of France.
PB&F believe that sprayed on insulation is very
dangerous in steel boats. The problem is rust.
Especially secret rust making a hole from the inside
and causing you to sink at some inconvenient time and
place.
PB& F developed a system of pannelized insulation for
steel boats. The pannels don't touch the steel skin
and are all completely removeable so that the entire
structure can, with some labor and inconvenience, be
inspected every so many years when either you or the
insurance company want to know or every time the boat
gets sold and surveyed. Pretty damn ingenious I
thought.
The problem with the insulating pannels and the French
canals was keeping the air draught or height above
waterline low enough to allow people and pannels to
exist inside the boat. PB&F spent a lot of time and
head scratching trying to figure this out. They even
suggested cutting through the thick bottom of the
boat, 1/2" plate as I recall, and welding plate
outside, on the upside of the bottom's rocker, to get
enough clearance for the engine's oil pan. (To get
this far in the design process indicates the kind of
thought and effort that Phil and Susanne had put into
the concept.)
They still couldn't get it to work to their
satisfaction. Then they said, "Five inches of plywood
is pretty strong." So it is.
If air draught isn't a problem for your goals and
destinations, then PB&F could design or modify one of
their current designs to do what you want. Get some
money together and get in the queue. All you need is a
fax and a checkbook. Oh, time. You need some time too.
Unfortunately for all involved, the money I had
already counted and allocated for building the boat,
failed to materialize. PB&F won't design a boat that
isn't going to get built, so I haven't gotten to enjoy
the irregularly occuring but inevitably fascinating
two hour conversations with Susanne for a couple of
years.
My design was pure motor boat. If you are interested
in a motor sailer with ocean crossing capabilities,
the Kolb Cruiser is a very attractive design. My wants
and "needs" have changed as kids have grown and
relationships withered. A modified Kolb Cruiser with a
Deutz might be perfect.
I've still got an aircooled Deutz sitting in storage
that would work on either a modified Cabotian or a
modified Kolb Cruiser or the modified Sitka Explorer.
I'm glad I didn't buy the twelve cylinder monster that
my design could have used. It was a good deal on Ebay,
but not that good of a deal now that I can't use it.
If I chose I'd have PB&F perform the modifications.
I'm not clever or experienced enough to do it on my
own. I like my boats to float upright and on their
waterlines.
While I was confident that the money for my boat was
still enroute I visited the Deutz factory across the
Rhine from Cologne. Very interesting tour. Those
engines work as advertised. As long as they've got
enough cooling air and clean diesel fuel they are
close to perpetual motion. They aren't very popular in
North America and bargains can be found on Ebay. They
are popular enough in North America to say nothing of
the rest of the world that parts are available. Plus
they are modular so you can keep a relatively small
inventory of parts and fix almost anything including
replacing a cylinder.
My design was too big for PB&F's British sail drive
that they like so well. They specified the Schottel
Rudderpropeller. An amazing piece of engineering, 360
degree vectoring thrust and about as reliable as a
hammer. Many of the Bateaux Mouches in Paris use
these. The Schottel Rudderpropellers are one of the
reasons the Bateau Mouches can turn around in not much
more than their own length. They can do this no matter
what the current or wind is doing. According to the
head engineer on the Bateau Mouches I visited, the
Schottels are quite robust, reasonably easy to repair
when you get a tree trunk caught in the propeller, and
very reliable. Visited the Schottel factory too.
Schottel makes huge electric drives for ocean liners
and tug boats. All vectoring thrust so the liners
don't need the tugs and the Schottel tugs and pull in
any direction.
Life is full of changes. Maybe a Tahiti and now is
better than something else later.
--- Ken Kongslie <jaguar215@...> wrote:
>http://us.click.yahoo.com/6iY7fA/5WnJAA/Y3ZIAA/_0TolB/TM
>
> --- Inbolger@yahoogroups.com, "Phil S."
> <newbarndesign@y...> wrote:
> >
> > I would scan and post that article too, but I am
> scanning photocopies
> > and they do not reproduce very well. I found the
> artcle fascinating as
> > Mr. Bolger believes that an atlantic crossing,
> with an eye on the
> > weather, would be possible in the "Sitka
> Explorer". Not overly sure
> > which route he suggested, but the Sitka would also
> fit inside a
> > container and could be transported across the big
> pond in that fashion.
> >
> > I like the idea of the air cooled diesel with an
> out drive. I just
> > wish I could build it in steel instead of Plywood.
> > Regards
> > Phil
>
>http://hallman.org/bolger/Sitka/Sitka01.gif
>
>http://hallman.org/bolger/Sitka/Sitka02.gif
>
>http://hallman.org/bolger/Sitka/Sitka03.gif
>
>http://hallman.org/bolger/Sitka/sitka.gif
>
>
>
>
>
> ------------------------ Yahoo! Groups Sponsor
> --------------------~-->
> Help save the life of a child. Support St. Jude
> Children's Research Hospital's
> 'Thanks & Giving.'
>
>--------------------------------------------------------------------~->
>Bolger rules!!!
>
> 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
>
>
>bolger-unsubscribe@yahoogroups.com
>
>
>
>
>
>
>
- 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
To visit your group on the web, go to:
http://groups.yahoo.com/group/bolger/
To unsubscribe from this group, send an email to:
bolger-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject to the Yahoo!
Terms of Service.
Send instant messages to your online friendshttp://uk.messenger.yahoo.com
I've had two of these conversations with PB&F.
The Transatlantic Route for boats with limited fuel
capacity they recommended was to go north along the
Canadian Coastline, Greenland, Iceland and down to
Scotland. You'd need to be extra vigilant watching
your fuel consumption and distances made good and
remaining. Very few fuel depots between stops.
I'm enamored with steel boat construction too. When
PB&F and I were working out the details of my long
delayed and probably dead ocean crossing, canal
cruising middle class apartment, steel was found to be
difficult or perhaps imposible. The problem was with
insulation and getting under the bridges and through
the tunnels on the canals of France.
PB&F believe that sprayed on insulation is very
dangerous in steel boats. The problem is rust.
Especially secret rust making a hole from the inside
and causing you to sink at some inconvenient time and
place.
PB& F developed a system of pannelized insulation for
steel boats. The pannels don't touch the steel skin
and are all completely removeable so that the entire
structure can, with some labor and inconvenience, be
inspected every so many years when either you or the
insurance company want to know or every time the boat
gets sold and surveyed. Pretty damn ingenious I
thought.
The problem with the insulating pannels and the French
canals was keeping the air draught or height above
waterline low enough to allow people and pannels to
exist inside the boat. PB&F spent a lot of time and
head scratching trying to figure this out. They even
suggested cutting through the thick bottom of the
boat, 1/2" plate as I recall, and welding plate
outside, on the upside of the bottom's rocker, to get
enough clearance for the engine's oil pan. (To get
this far in the design process indicates the kind of
thought and effort that Phil and Susanne had put into
the concept.)
They still couldn't get it to work to their
satisfaction. Then they said, "Five inches of plywood
is pretty strong." So it is.
If air draught isn't a problem for your goals and
destinations, then PB&F could design or modify one of
their current designs to do what you want. Get some
money together and get in the queue. All you need is a
fax and a checkbook. Oh, time. You need some time too.
Unfortunately for all involved, the money I had
already counted and allocated for building the boat,
failed to materialize. PB&F won't design a boat that
isn't going to get built, so I haven't gotten to enjoy
the irregularly occuring but inevitably fascinating
two hour conversations with Susanne for a couple of
years.
My design was pure motor boat. If you are interested
in a motor sailer with ocean crossing capabilities,
the Kolb Cruiser is a very attractive design. My wants
and "needs" have changed as kids have grown and
relationships withered. A modified Kolb Cruiser with a
Deutz might be perfect.
I've still got an aircooled Deutz sitting in storage
that would work on either a modified Cabotian or a
modified Kolb Cruiser or the modified Sitka Explorer.
I'm glad I didn't buy the twelve cylinder monster that
my design could have used. It was a good deal on Ebay,
but not that good of a deal now that I can't use it.
If I chose I'd have PB&F perform the modifications.
I'm not clever or experienced enough to do it on my
own. I like my boats to float upright and on their
waterlines.
While I was confident that the money for my boat was
still enroute I visited the Deutz factory across the
Rhine from Cologne. Very interesting tour. Those
engines work as advertised. As long as they've got
enough cooling air and clean diesel fuel they are
close to perpetual motion. They aren't very popular in
North America and bargains can be found on Ebay. They
are popular enough in North America to say nothing of
the rest of the world that parts are available. Plus
they are modular so you can keep a relatively small
inventory of parts and fix almost anything including
replacing a cylinder.
My design was too big for PB&F's British sail drive
that they like so well. They specified the Schottel
Rudderpropeller. An amazing piece of engineering, 360
degree vectoring thrust and about as reliable as a
hammer. Many of the Bateaux Mouches in Paris use
these. The Schottel Rudderpropellers are one of the
reasons the Bateau Mouches can turn around in not much
more than their own length. They can do this no matter
what the current or wind is doing. According to the
head engineer on the Bateau Mouches I visited, the
Schottels are quite robust, reasonably easy to repair
when you get a tree trunk caught in the propeller, and
very reliable. Visited the Schottel factory too.
Schottel makes huge electric drives for ocean liners
and tug boats. All vectoring thrust so the liners
don't need the tugs and the Schottel tugs and pull in
any direction.
Life is full of changes. Maybe a Tahiti and now is
better than something else later.
--- Ken Kongslie <jaguar215@...> wrote:
The Transatlantic Route for boats with limited fuel
capacity they recommended was to go north along the
Canadian Coastline, Greenland, Iceland and down to
Scotland. You'd need to be extra vigilant watching
your fuel consumption and distances made good and
remaining. Very few fuel depots between stops.
I'm enamored with steel boat construction too. When
PB&F and I were working out the details of my long
delayed and probably dead ocean crossing, canal
cruising middle class apartment, steel was found to be
difficult or perhaps imposible. The problem was with
insulation and getting under the bridges and through
the tunnels on the canals of France.
PB&F believe that sprayed on insulation is very
dangerous in steel boats. The problem is rust.
Especially secret rust making a hole from the inside
and causing you to sink at some inconvenient time and
place.
PB& F developed a system of pannelized insulation for
steel boats. The pannels don't touch the steel skin
and are all completely removeable so that the entire
structure can, with some labor and inconvenience, be
inspected every so many years when either you or the
insurance company want to know or every time the boat
gets sold and surveyed. Pretty damn ingenious I
thought.
The problem with the insulating pannels and the French
canals was keeping the air draught or height above
waterline low enough to allow people and pannels to
exist inside the boat. PB&F spent a lot of time and
head scratching trying to figure this out. They even
suggested cutting through the thick bottom of the
boat, 1/2" plate as I recall, and welding plate
outside, on the upside of the bottom's rocker, to get
enough clearance for the engine's oil pan. (To get
this far in the design process indicates the kind of
thought and effort that Phil and Susanne had put into
the concept.)
They still couldn't get it to work to their
satisfaction. Then they said, "Five inches of plywood
is pretty strong." So it is.
If air draught isn't a problem for your goals and
destinations, then PB&F could design or modify one of
their current designs to do what you want. Get some
money together and get in the queue. All you need is a
fax and a checkbook. Oh, time. You need some time too.
Unfortunately for all involved, the money I had
already counted and allocated for building the boat,
failed to materialize. PB&F won't design a boat that
isn't going to get built, so I haven't gotten to enjoy
the irregularly occuring but inevitably fascinating
two hour conversations with Susanne for a couple of
years.
My design was pure motor boat. If you are interested
in a motor sailer with ocean crossing capabilities,
the Kolb Cruiser is a very attractive design. My wants
and "needs" have changed as kids have grown and
relationships withered. A modified Kolb Cruiser with a
Deutz might be perfect.
I've still got an aircooled Deutz sitting in storage
that would work on either a modified Cabotian or a
modified Kolb Cruiser or the modified Sitka Explorer.
I'm glad I didn't buy the twelve cylinder monster that
my design could have used. It was a good deal on Ebay,
but not that good of a deal now that I can't use it.
If I chose I'd have PB&F perform the modifications.
I'm not clever or experienced enough to do it on my
own. I like my boats to float upright and on their
waterlines.
While I was confident that the money for my boat was
still enroute I visited the Deutz factory across the
Rhine from Cologne. Very interesting tour. Those
engines work as advertised. As long as they've got
enough cooling air and clean diesel fuel they are
close to perpetual motion. They aren't very popular in
North America and bargains can be found on Ebay. They
are popular enough in North America to say nothing of
the rest of the world that parts are available. Plus
they are modular so you can keep a relatively small
inventory of parts and fix almost anything including
replacing a cylinder.
My design was too big for PB&F's British sail drive
that they like so well. They specified the Schottel
Rudderpropeller. An amazing piece of engineering, 360
degree vectoring thrust and about as reliable as a
hammer. Many of the Bateaux Mouches in Paris use
these. The Schottel Rudderpropellers are one of the
reasons the Bateau Mouches can turn around in not much
more than their own length. They can do this no matter
what the current or wind is doing. According to the
head engineer on the Bateau Mouches I visited, the
Schottels are quite robust, reasonably easy to repair
when you get a tree trunk caught in the propeller, and
very reliable. Visited the Schottel factory too.
Schottel makes huge electric drives for ocean liners
and tug boats. All vectoring thrust so the liners
don't need the tugs and the Schottel tugs and pull in
any direction.
Life is full of changes. Maybe a Tahiti and now is
better than something else later.
--- Ken Kongslie <jaguar215@...> wrote:
>http://us.click.yahoo.com/6iY7fA/5WnJAA/Y3ZIAA/_0TolB/TM
>
> --- Inbolger@yahoogroups.com, "Phil S."
> <newbarndesign@y...> wrote:
> >
> > I would scan and post that article too, but I am
> scanning photocopies
> > and they do not reproduce very well. I found the
> artcle fascinating as
> > Mr. Bolger believes that an atlantic crossing,
> with an eye on the
> > weather, would be possible in the "Sitka
> Explorer". Not overly sure
> > which route he suggested, but the Sitka would also
> fit inside a
> > container and could be transported across the big
> pond in that fashion.
> >
> > I like the idea of the air cooled diesel with an
> out drive. I just
> > wish I could build it in steel instead of Plywood.
> > Regards
> > Phil
>
>http://hallman.org/bolger/Sitka/Sitka01.gif
>
>http://hallman.org/bolger/Sitka/Sitka02.gif
>
>http://hallman.org/bolger/Sitka/Sitka03.gif
>
>http://hallman.org/bolger/Sitka/sitka.gif
>
>
>
>
>
> ------------------------ Yahoo! Groups Sponsor
> --------------------~-->
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>--------------------------------------------------------------------~->
>
>
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> - 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:
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--- Inbolger@yahoogroups.com, "Phil S." <newbarndesign@y...> wrote:
way it is would be a wonderful cruiser for me so I am a little excited to see how
much better it could be. Only thing its missing right now is a hot tub. cost shouldnt
be "that much" more.
Ken
>I am wondering what Sitka would look like in a stretched version. I really think the
> I would scan and post that article too, but I am scanning photocopies
> and they do not reproduce very well. I found the artcle fascinating as
> Mr. Bolger believes that an atlantic crossing, with an eye on the
> weather, would be possible in the "Sitka Explorer". Not overly sure
> which route he suggested, but the Sitka would also fit inside a
> container and could be transported across the big pond in that fashion.
>
> I like the idea of the air cooled diesel with an out drive. I just
> wish I could build it in steel instead of Plywood.
> Regards
> Phil
way it is would be a wonderful cruiser for me so I am a little excited to see how
much better it could be. Only thing its missing right now is a hot tub. cost shouldnt
be "that much" more.
Ken
--- Inbolger@yahoogroups.com, "Phil S." <newbarndesign@y...> wrote:
http://hallman.org/bolger/Sitka/Sitka02.gif
http://hallman.org/bolger/Sitka/Sitka03.gif
http://hallman.org/bolger/Sitka/sitka.gif
>http://hallman.org/bolger/Sitka/Sitka01.gif
> I would scan and post that article too, but I am scanning photocopies
> and they do not reproduce very well. I found the artcle fascinating as
> Mr. Bolger believes that an atlantic crossing, with an eye on the
> weather, would be possible in the "Sitka Explorer". Not overly sure
> which route he suggested, but the Sitka would also fit inside a
> container and could be transported across the big pond in that fashion.
>
> I like the idea of the air cooled diesel with an out drive. I just
> wish I could build it in steel instead of Plywood.
> Regards
> Phil
http://hallman.org/bolger/Sitka/Sitka02.gif
http://hallman.org/bolger/Sitka/Sitka03.gif
http://hallman.org/bolger/Sitka/sitka.gif
I would scan and post that article too, but I am scanning photocopies
and they do not reproduce very well. I found the artcle fascinating as
Mr. Bolger believes that an atlantic crossing, with an eye on the
weather, would be possible in the "Sitka Explorer". Not overly sure
which route he suggested, but the Sitka would also fit inside a
container and could be transported across the big pond in that fashion.
I like the idea of the air cooled diesel with an out drive. I just
wish I could build it in steel instead of Plywood.
Regards
Phil
and they do not reproduce very well. I found the artcle fascinating as
Mr. Bolger believes that an atlantic crossing, with an eye on the
weather, would be possible in the "Sitka Explorer". Not overly sure
which route he suggested, but the Sitka would also fit inside a
container and could be transported across the big pond in that fashion.
I like the idea of the air cooled diesel with an out drive. I just
wish I could build it in steel instead of Plywood.
Regards
Phil
--- Inbolger@yahoogroups.com, Harry James <welshman@p...> wrote:
ken
> Which MAIB is Sitka Explorer in?I believe 8/01/02
>
> HJ
>
ken
Which MAIB is Sitka Explorer in?
HJ
Ken Kongslie wrote:
HJ
Ken Kongslie wrote:
>--- Inbolger@yahoogroups.com, Sam Glasscock <glasscocklanding@y...> wrote:
>
>
>>Has the "non-streched" Sitka Explorer ever gone beyond
>>the prelimiary state presented in MAIB? I had my
>>Topaz out in the mouth of Delaware Bay yesterday,
>>first time since New Year's day. I love the design
>>but would like to build something a little more
>>seakindly (but still trailerable) for, say, a Bahamas
>>cruise. I was a little dissappointed to hear that the
>>current plans for the Sitka Ex. (at least last I
>>heard) were for a planing hull, like Topaz, rather
>>than a displacement hull like Tahiti. Topaz is super
>>up to 12 or 14 knots.
>>
Ken, Topaz was the first "fillet-nosed" power sharpie,
a 32' long planing light cruiser for inland waters.
Then came Tahiti, the displacement passagemaker,
around 38 feet and heavy displacement. Sitka explorer
was to be somewhere in between, but apparently the
plans have not been completed, and PB is now
supposedly working on a longer version of Sitka
explorer. Sam
--- Ken Kongslie <jaguar215@...> wrote:
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a 32' long planing light cruiser for inland waters.
Then came Tahiti, the displacement passagemaker,
around 38 feet and heavy displacement. Sitka explorer
was to be somewhere in between, but apparently the
plans have not been completed, and PB is now
supposedly working on a longer version of Sitka
explorer. Sam
--- Ken Kongslie <jaguar215@...> wrote:
>__________________________________
> Is the Topaz a "stretched" Sitka Explorer or has
> there been talk by PB&F of
> stretching the already pretty long Sitka Explorer?
> Ken
> > >
> >
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! Small Business - Try our new resources
> site!
> >http://smallbusiness.yahoo.com/resources/
>
>
>
>
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--- Inbolger@yahoogroups.com, Sam Glasscock <glasscocklanding@y...> wrote:
stretching the already pretty long Sitka Explorer?
Ken
> Has the "non-streched" Sitka Explorer ever gone beyondIs the Topaz a "stretched" Sitka Explorer or has there been talk by PB&F of
> the prelimiary state presented in MAIB? I had my
> Topaz out in the mouth of Delaware Bay yesterday,
> first time since New Year's day. I love the design
> but would like to build something a little more
> seakindly (but still trailerable) for, say, a Bahamas
> cruise. I was a little dissappointed to hear that the
> current plans for the Sitka Ex. (at least last I
> heard) were for a planing hull, like Topaz, rather
> than a displacement hull like Tahiti. Topaz is super
> up to 12 or 14 knots. If the engine is raised so that
> the cav. plate is at the hull bottom, she will plane
> pretty flat up to 18 or 20 knots, with a little
> squating, which is the limit (with the boat light)
> with the 50 hp Yamaha. Unfortunately, she is so long
> and light that, in the short chop which is the rule in
> Delaware Bay, the stern frequently comes out enough to
> cause cavitation with the motor in this
> minimally-immersed position. I have the motor dropped
> about two inches lower in the water, which solves the
> cavitation problem but which increases drag and, more
> importantly, causes the stern to squat starting in the
> mid teens. This is not a probem for me, because I
> like to run her at about twelve kts. My point is that
> the long, slim Topaz/ SE/ Tahiti design is probably a
> rule beater that could perhaps do close to 8 kts
> displacement (in a thirty-two footer, say) with a
> rockered, seakindly bottom, perfect for the kind of
> cruise I am talking about. Is the "streched" version
> also designed as a planing hull?
>
> > In a letter I recieved from Suzanne about 8 months
> > ago she mentione
> > dthat they were curently working on a design for a
> > stretched "Sitka
> > Explorer". >
> >
> > I am still a little unclear:
stretching the already pretty long Sitka Explorer?
Ken
> >
>
>
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Small Business - Try our new resources site!
>http://smallbusiness.yahoo.com/resources/
Bruce, I am trying to remeber what I spent for the
plexiglass and the safety glass in front--it surely
was no where near $2000. I used lighter stuff for the
fixed windows in the rear, without problem. It was
not more than a few hundred bucks total. When you get
to where you are ready to install them, I'll be happy
to tell you what I did--I found an easier solution
than the "progressively tightening sash locks--two per
window" called for in the plans.
What hangs me up is that when I pencil out the
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plexiglass and the safety glass in front--it surely
was no where near $2000. I used lighter stuff for the
fixed windows in the rear, without problem. It was
not more than a few hundred bucks total. When you get
to where you are ready to install them, I'll be happy
to tell you what I did--I found an easier solution
than the "progressively tightening sash locks--two per
window" called for in the plans.
What hangs me up is that when I pencil out the
> cost, spending $2,000 on the windows give me__________________________________
> pause.
>
> I welcome any ideas about the cheapest way
> to achieve all those windows!
>
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> I forget where you are, Bruce, but if youA wood-butcher's version is what I am comtemplating
> get to the East coast and want to look at the
> wood-butchers version, I'd be very happy to have you.
> Sam
to build. In other words, as quick as possible
with plenty of tolerance for rough edges.
What hangs me up is that when I pencil out the
cost, spending $2,000 on the windows give me
pause.
I welcome any ideas about the cheapest way
to achieve all those windows!
Visiting you would involve an airplane ticket,
and I may well take you up on your offer.
Bruce, you may be right. Since I am happy with 12 kt
performance, I have not fooled with it much. There
are really two issues. One is trim. Even with the
motor all the way down, she tends to sqaut under a
high load--understandably since there is so little
bearing surface at the stern. Of course, there is no
place on a Topaz for transom mounted tabs, although a
wedge on the bottom might help. A big cavitation
plate/doelfin, etc. might help, but there is not much
room to raise/lower the outboard through the cutout in
the bottom as it is (the cavitation plate hangs up on
the bottom unless the motor is centered) so a set of
doelfins would be difficult to use (I have never found
them worth the effort on other boats, myself, anyway).
The second problem in air entrainment in the prop. I
believe this occurs when the chop is such that the
stern passes over the steep face of a wave and lifts
the cavitation plate out of the water, and not because
the cavitation plate is insufficient. It is, in my
opinion, a function of the long and extermely light
and shallow hull--which itself confers other benefits.
I only encoutered it in certain quite rough
condition--of course, then is when I want reliable
power most. Since I lowered the prop, it has not been
a problem under any conditions.
At any rate, the Topaz is a great, easy to build
cruiser for two/dayboat for 8, particularly if you are
content with speeds in the low teens. I heard
somewhare that PB was coming out with a modified
wide-stern version, which would give more bearing for
planing. I forget where you are, Bruce, but if you
get to the East coast and want to look at the
wood-butchers version, I'd be very happy to have you.
Sam
--
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performance, I have not fooled with it much. There
are really two issues. One is trim. Even with the
motor all the way down, she tends to sqaut under a
high load--understandably since there is so little
bearing surface at the stern. Of course, there is no
place on a Topaz for transom mounted tabs, although a
wedge on the bottom might help. A big cavitation
plate/doelfin, etc. might help, but there is not much
room to raise/lower the outboard through the cutout in
the bottom as it is (the cavitation plate hangs up on
the bottom unless the motor is centered) so a set of
doelfins would be difficult to use (I have never found
them worth the effort on other boats, myself, anyway).
The second problem in air entrainment in the prop. I
believe this occurs when the chop is such that the
stern passes over the steep face of a wave and lifts
the cavitation plate out of the water, and not because
the cavitation plate is insufficient. It is, in my
opinion, a function of the long and extermely light
and shallow hull--which itself confers other benefits.
I only encoutered it in certain quite rough
condition--of course, then is when I want reliable
power most. Since I lowered the prop, it has not been
a problem under any conditions.
At any rate, the Topaz is a great, easy to build
cruiser for two/dayboat for 8, particularly if you are
content with speeds in the low teens. I heard
somewhare that PB was coming out with a modified
wide-stern version, which would give more bearing for
planing. I forget where you are, Bruce, but if you
get to the East coast and want to look at the
wood-butchers version, I'd be very happy to have you.
Sam
--
> Sam, a very interesting piece of information,__________________________________
> thanks.
> [You may not know how close I am to deciding to
> build a Topaz!]
>
> Isn't the obvious remedy to this cavitation problem,
> enlarging the cavitation plate? Either directly
> on the motor, (by riveting on some aluminum plate]
> or by adding a transom mounted 'trim' plate of some
> sort?
>
> Of course, I may not understand the dynamics
> of the problem.
>
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The drag from a Dol-fin is significant. I'd avoid it if possible.
I suspect the air getting to Sam's prop is coming along the bottom from the
bow. Just a little bit of down trim usually makes it go away. Putting the
bow down in a chop also makes for a better ride and handling too.
I suspect the air getting to Sam's prop is coming along the bottom from the
bow. Just a little bit of down trim usually makes it go away. Putting the
bow down in a chop also makes for a better ride and handling too.
----- Original Message -----
From: "Bruce Hallman" <bruce@...>
To: <bolger@yahoogroups.com>
Sent: Monday, April 11, 2005 12:43 PM
Subject: Re: [bolger] Stretched Sitka Explorer/Topaz line of boats
>
> > up to 12 or 14 knots. If the engine is raised so that
> > the cav. plate is at the hull bottom, she will plane
> > pretty flat up to 18 or 20 knots, with a little
> > squating, which is the limit (with the boat light)
> > with the 50 hp Yamaha. Unfortunately, she is so long
> > and light that, in the short chop which is the rule in
> > Delaware Bay, the stern frequently comes out enough to
> > cause cavitation with the motor in this
> > minimally-immersed position.
>
> Sam, a very interesting piece of information, thanks.
> [You may not know how close I am to deciding to
> build a Topaz!]
>
> Isn't the obvious remedy to this cavitation problem,
> enlarging the cavitation plate? Either directly
> on the motor, (by riveting on some aluminum plate]
> or by adding a transom mounted 'trim' plate of some sort?
>
> Of course, I may not understand the dynamics
> of the problem.
>
>
>
> 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
>
>
>
>
>
>
>
>
> up to 12 or 14 knots. If the engine is raised so thatSam, a very interesting piece of information, thanks.
> the cav. plate is at the hull bottom, she will plane
> pretty flat up to 18 or 20 knots, with a little
> squating, which is the limit (with the boat light)
> with the 50 hp Yamaha. Unfortunately, she is so long
> and light that, in the short chop which is the rule in
> Delaware Bay, the stern frequently comes out enough to
> cause cavitation with the motor in this
> minimally-immersed position.
[You may not know how close I am to deciding to
build a Topaz!]
Isn't the obvious remedy to this cavitation problem,
enlarging the cavitation plate? Either directly
on the motor, (by riveting on some aluminum plate]
or by adding a transom mounted 'trim' plate of some sort?
Of course, I may not understand the dynamics
of the problem.
Phil, I agree. the Tahiti is a neat, innovative boat
(with far more range than I need) but I don't like the
look. The Sitka Explorer is , to me, one of the
prettiest sharpie designs PB has done, just a really
pretty boat.
--- "Phil S." <newbarndesign@...> wrote:
Yahoo! Mail Mobile
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(with far more range than I need) but I don't like the
look. The Sitka Explorer is , to me, one of the
prettiest sharpie designs PB has done, just a really
pretty boat.
--- "Phil S." <newbarndesign@...> wrote:
> I would like to__________________________________
> see a design that
> has the speed and range characteristics of "Tahiti"
> and the looks of
> "Sitka Explorer".
>
> When Mr Bolger has more time I plan to commission
> the design something
> similar.
> Phil
>
>
>
>
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> Has the "non-streched" Sitka Explorer ever gone beyondNot from my understanding in the last corespondence, I asked about
> the prelimiary state presented in MAIB?
buying "Sitka Explorer" as they were and was told that they had no
time for any new projects which leads me to believe that they are just
preliminary.
>Is the "streched" versionI have no idea, I would hope not. I would like to see a design that
> also designed as a planing hull?
has the speed and range characteristics of "Tahiti" and the looks of
"Sitka Explorer".
When Mr Bolger has more time I plan to commission the design something
similar.
Phil
Has the "non-streched" Sitka Explorer ever gone beyond
the prelimiary state presented in MAIB? I had my
Topaz out in the mouth of Delaware Bay yesterday,
first time since New Year's day. I love the design
but would like to build something a little more
seakindly (but still trailerable) for, say, a Bahamas
cruise. I was a little dissappointed to hear that the
current plans for the Sitka Ex. (at least last I
heard) were for a planing hull, like Topaz, rather
than a displacement hull like Tahiti. Topaz is super
up to 12 or 14 knots. If the engine is raised so that
the cav. plate is at the hull bottom, she will plane
pretty flat up to 18 or 20 knots, with a little
squating, which is the limit (with the boat light)
with the 50 hp Yamaha. Unfortunately, she is so long
and light that, in the short chop which is the rule in
Delaware Bay, the stern frequently comes out enough to
cause cavitation with the motor in this
minimally-immersed position. I have the motor dropped
about two inches lower in the water, which solves the
cavitation problem but which increases drag and, more
importantly, causes the stern to squat starting in the
mid teens. This is not a probem for me, because I
like to run her at about twelve kts. My point is that
the long, slim Topaz/ SE/ Tahiti design is probably a
rule beater that could perhaps do close to 8 kts
displacement (in a thirty-two footer, say) with a
rockered, seakindly bottom, perfect for the kind of
cruise I am talking about. Is the "streched" version
also designed as a planing hull?
Do you Yahoo!?
Yahoo! Small Business - Try our new resources site!
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the prelimiary state presented in MAIB? I had my
Topaz out in the mouth of Delaware Bay yesterday,
first time since New Year's day. I love the design
but would like to build something a little more
seakindly (but still trailerable) for, say, a Bahamas
cruise. I was a little dissappointed to hear that the
current plans for the Sitka Ex. (at least last I
heard) were for a planing hull, like Topaz, rather
than a displacement hull like Tahiti. Topaz is super
up to 12 or 14 knots. If the engine is raised so that
the cav. plate is at the hull bottom, she will plane
pretty flat up to 18 or 20 knots, with a little
squating, which is the limit (with the boat light)
with the 50 hp Yamaha. Unfortunately, she is so long
and light that, in the short chop which is the rule in
Delaware Bay, the stern frequently comes out enough to
cause cavitation with the motor in this
minimally-immersed position. I have the motor dropped
about two inches lower in the water, which solves the
cavitation problem but which increases drag and, more
importantly, causes the stern to squat starting in the
mid teens. This is not a probem for me, because I
like to run her at about twelve kts. My point is that
the long, slim Topaz/ SE/ Tahiti design is probably a
rule beater that could perhaps do close to 8 kts
displacement (in a thirty-two footer, say) with a
rockered, seakindly bottom, perfect for the kind of
cruise I am talking about. Is the "streched" version
also designed as a planing hull?
> In a letter I recieved from Suzanne about 8 months__________________________________
> ago she mentione
> dthat they were curently working on a design for a
> stretched "Sitka
> Explorer". >
>
>
>
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