Posted by Randy (crawfordceramics@…>)
I can see all this talk about electric motors on boats is getting peoples wheels turnin’, It sure got mine! I currently have a 10 hp outboard on my Freedom 25 which is old and not as trustworthy as I would like. I’ve been pondering replacements and alternatives. The following link provides info on systems that are self-recharging under sail! The propeller works as a source of power, a parallel to hydropower.http://www.ngcmarine.com/145.html Augment this system with some thin,flexible PE panels and the batteries can be maintained while your craft is moored (when the sun shines). And/Or use a small wind power generator.They have these starting at $6500 for a 48 volt system equivalent to at 16 hp diesel, and they go up to a 52 hp system.
Posted by merrick white (r__merrick_white@…>)
Try this site: http://www.electricyacht.com/index.php It’s the best
setup I have seen at a great price.
— In FreedomOwnersGroup@yahoogroups.com, Randy
<crawfordceramics@…> wrote:
I can see all this talk about electric motors on boats is getting
peoples wheels turnin’, It sure got mine! I currently have a 10 hp
outboard on my Freedom 25 which is old and not as trustworthy as I
would like. I’ve been pondering replacements and alternatives.
The following link provides info on systems that are self-
recharging under sail! The propeller works as a source of power, a
parallel to hydropower.
http://www.ngcmarine.com/145.html
Augment this system with some thin,flexible PE panels and the
batteries can be maintained while your craft is moored (when the sun
shines). And/Or use a small wind power generator.They have these
starting at $6500 for a 48 volt system equivalent to at 16 hp diesel,
and they go up to a 52 hp system.
Posted by Barry Stellrecht (yak@…>)
I’ve long been lusting after the system made by Solomon Technologies
http://solomontechnologies.com/ but so far have been held back by a
couple things. One, their system is extremely expensive (The 144VDC
part aka 12(!!!) batteries in the bank part doesn’t help). Two, the
Freedom 33 I just purchased was re-powered with a conventional diesel,
and I’ve just got it past the break-in period.
But the combo of a DC motor, big battery bank, and DC genset does give
a lot of wonderful options, like charging under sail (at cost of boat
speed), short motoring without cranking the loud stinky engine, long
motoring with the engine, and a “backup” to provide motor power for a
few hours if the engine fails temporarily, plus vibration isolation
between the boat and the diesel, and the ability to use the genset to
charge back up the house bank while properly loading the engine.
Ah well, another year (or decade?) for me. I wish all of you
experimenting with electric propulsion the best!
Posted by Chris Museler (cmuseler@…>)
Don Street (Ocean Sailing Yacht, Inmar Iolaire Caribbean charts, writer
etc.) Has just installed an electric engine with generator in his boat that
has been engineless for about 60 years. His email is
streetiolaire@…
-----Original Message-----
From: FreedomOwnersGroup@yahoogroups.com
[mailto:FreedomOwnersGroup@yahoogroups.com] On Behalf Of Barry Stellrecht
Sent: Thursday, January 31, 2008 5:03 AM
To: FreedomOwnersGroup@yahoogroups.com
Subject: Re: [FreedomOwnersGroup] Re: Electric propulsion systems
I’ve long been lusting after the system made by Solomon Technologies
http://solomontechnologies.com/ but so far have been held back by a
couple things. One, their system is extremely expensive (The 144VDC
part aka 12(!!!) batteries in the bank part doesn’t help). Two, the
Freedom 33 I just purchased was re-powered with a conventional diesel,
and I’ve just got it past the break-in period.
But the combo of a DC motor, big battery bank, and DC genset does give
a lot of wonderful options, like charging under sail (at cost of boat
speed), short motoring without cranking the loud stinky engine, long
motoring with the engine, and a “backup” to provide motor power for a
few hours if the engine fails temporarily, plus vibration isolation
between the boat and the diesel, and the ability to use the genset to
charge back up the house bank while properly loading the engine.
Ah well, another year (or decade?) for me. I wish all of you
experimenting with electric propulsion the best!
Yahoo! Groups Links
Posted by Herman and Gail Schiller (hschiller2@…>)
All the modern, large cruise ships have multiple “gensets” (5-figure
horsepower each). which drive everything on the ship including
propulsion motors. Some of the most recent ones have what appears to
be electrical trolling motors (scaled up a few orders of magnitude)
suspended underneath the hull and are steerable (no rudder drag, and
no stern thrusters). Look up AZIPOD via Google for more poop. Herm
At 05:02 AM 1/31/2008, you wrote:
I’ve long been lusting after the system made by Solomon Technologies
<http://solomontechnologies.com/>http://solomontechnologies.com/ but
so far have been held back by a
couple things. One, their system is extremely expensive (The 144VDC
part aka 12(!!!) batteries in the bank part doesn’t help). Two, the
Freedom 33 I just purchased was re-powered with a conventional diesel,
and I’ve just got it past the break-in period.But the combo of a DC motor, big battery bank, and DC genset does give
a lot of wonderful options, like charging under sail (at cost of boat
speed), short motoring without cranking the loud stinky engine, long
motoring with the engine, and a “backup” to provide motor power for a
few hours if the engine fails temporarily, plus vibration isolation
between the boat and the diesel, and the ability to use the genset to
charge back up the house bank while properly loading the engine.Ah well, another year (or decade?) for me. I wish all of you
experimenting with electric propulsion the best!
Posted by Alan Kusinitz (akusinitz@…>)
When I was looking at buying an F-44 that
may have needed repowering I talked at some length with the Glacier
Bay expert on their diesel/electric propulsion system. Their
smallest generator may have been too large but in general it just seemed like a
big investment that has some question marks in terms of sizing options. Another
issue was the need for a larger prop and questions of prop clearance (can’t
all be done with pitch). I think had Glacier Bay
had a smaller option and if the prop clearance was okay then it might be
attractive but at the moment it was marginal for an F-44 and not an option for
smaller Freedoms as far as I could tell. If I remember correctly their smallest
option cost 40-50k which is prohibitive.
I was only interested in options suitable
for long range cruising.
Alan
From: FreedomOwnersGroup@yahoogroups.com [mailto:FreedomOwnersGroup@yahoogroups.com] On Behalf Of Herman and Gail Schiller
Sent: Thursday, January 31, 2008
9:21 PM
To: FreedomOwnersGroup@yahoogroups.com
Subject: Re: [FreedomOwnersGroup]
Re: Electric propulsion systems
All the modern, large cruise ships have multiple
“gensets” (5-figure
horsepower each). which drive everything on the ship including
propulsion motors. Some of the most recent ones have what appears to
be electrical trolling motors (scaled up a few orders of magnitude)
suspended underneath the hull and are steerable (no rudder drag, and
no stern thrusters). Look up AZIPOD via Google for more poop. Herm
At 05:02 AM 1/31/2008, you wrote:
I’ve long been lusting after the system made by Solomon Technologies
<http://solomontechnologies.com/>http://solomontechnologies.com/
but
so far have been held back by a
couple things. One, their system is extremely expensive (The 144VDC
part aka 12(!!!) batteries in the bank part doesn’t help). Two, the
Freedom 33 I just purchased was re-powered with a conventional diesel,
and I’ve just got it past the break-in period.But the combo of a DC motor, big battery bank, and DC genset does give
a lot of wonderful options, like charging under sail (at cost of boat
speed), short motoring without cranking the loud stinky engine, long
motoring with the engine, and a “backup” to provide motor power
for a
few hours if the engine fails temporarily, plus vibration isolation
between the boat and the diesel, and the ability to use the genset to
charge back up the house bank while properly loading the engine.Ah well, another year (or decade?) for me. I wish all of you
experimenting with electric propulsion the best!
\
Posted by lance_ryley (lance_ryley@…>)
I had a similar feeling when I was looking at repowering Bright Star. I
wanted to go electric, or at least to something environmentally
friendly, but I couldn’t figure out where I was going to put enough
batteries (not exactly earth-friendly in their own right) to sustain a
long cruise under power. I’m all for sailing as much as possible - I
usually raise sails before I’m past the end of the marina - but the
current lack of power, trade-offs for weight, and the potential to be
caught out without enough juice when you really need it outweighed the
idea of a quiet motor. Unfortunately with the current state of
technology, I don’t think most small boats can handle the power
requirements.
Of course, my last year at EB, they were working on some new permanent
magnet motors for propelling the entire navy. maybe some of that
technology will trickle into the civilian world in the next decade or
so.
Posted by Thomas Wales (twales@…>)
There was an article written by Nigel Calder in one of the sailing
rags about the diesel electric motor he was installing in his new
boat. The electric motor powered the boat, while the generator kept
the batteries charged. He claims that it’s more efficient and
economical. I’m not sure I’m sold, however, because you still have
the diesel power for the generator, you have added weight for both
extra batteries and the electric drive motor.
Until some genius discovers an inexpensive way to extract Hydrogen
from sea water, I’m not sure electricity will be the best solution.
Go Pats!!
TW
At 04:59 PM 2/1/2008, you wrote:
I had a similar feeling when I was looking at repowering Bright Star. I
wanted to go electric, or at least to something environmentally
friendly, but I couldn’t figure out where I was going to put enough
batteries (not exactly earth-friendly in their own right) to sustain a
long cruise under power. I’m all for sailing as much as possible - I
usually raise sails before I’m past the end of the marina - but the
current lack of power, trade-offs for weight, and the potential to be
caught out without enough juice when you really need it outweighed the
idea of a quiet motor. Unfortunately with the current state of
technology, I don’t think most small boats can handle the power
requirements.Of course, my last year at EB, they were working on some new permanent
magnet motors for propelling the entire navy. maybe some of that
technology will trickle into the civilian world in the next decade or
so.No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.516 / Virus Database: 269.19.18/1255 - Release Date:
2/1/2008 9:59 AM
–
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.516 / Virus Database: 269.19.18/1255 - Release Date: 2/1/2008 9:59
AM
Posted by sgaber@…> (sgaber@…>)
I’m looking for a Freedom 33 or 40 that needs repowering.
I’m a manufacturer’s rep for Beta Marine Diesel engines and I’d love to pout one
in a Freedom.
Anybody know of one?
Steve Gaber
Sanderling, 1967 C-31 #77
Oldsmar, FL
---- Alan Kusinitz <akusinitz@…> wrote:
When I was looking at buying an F-44 that may have needed repowering I
talked at some length with the Glacier Bay expert on their diesel/electric
propulsion system. Their smallest generator may have been too large but in
general it just seemed like a big investment that has some question marks in
terms of sizing options. Another issue was the need for a larger prop and
questions of prop clearance (can’t all be done with pitch). I think had
Glacier Bay had a smaller option and if the prop clearance was okay then it
might be attractive but at the moment it was marginal for an F-44 and not an
option for smaller Freedoms as far as I could tell. If I remember correctly
their smallest option cost 40-50k which is prohibitive.I was only interested in options suitable for long range cruising.
Alan
From: FreedomOwnersGroup@yahoogroups.com
[mailto:FreedomOwnersGroup@yahoogroups.com] On Behalf Of Herman and Gail
Schiller
Sent: Thursday, January 31, 2008 9:21 PM
To: FreedomOwnersGroup@yahoogroups.com
Subject: Re: [FreedomOwnersGroup] Re: Electric propulsion systemsAll the modern, large cruise ships have multiple “gensets” (5-figure
horsepower each). which drive everything on the ship including
propulsion motors. Some of the most recent ones have what appears to
be electrical trolling motors (scaled up a few orders of magnitude)
suspended underneath the hull and are steerable (no rudder drag, and
no stern thrusters). Look up AZIPOD via Google for more poop. HermAt 05:02 AM 1/31/2008, you wrote:
I’ve long been lusting after the system made by Solomon Technologies
<http://solomontechn http://solomontechnologies.com/
ologies.com/>http://solomontechn http://solomontechnologies.com/
ologies.com/ but
so far have been held back by a
couple things. One, their system is extremely expensive (The 144VDC
part aka 12(!!!) batteries in the bank part doesn’t help). Two, the
Freedom 33 I just purchased was re-powered with a conventional diesel,
and I’ve just got it past the break-in period.But the combo of a DC motor, big battery bank, and DC genset does give
a lot of wonderful options, like charging under sail (at cost of boat
speed), short motoring without cranking the loud stinky engine, long
motoring with the engine, and a “backup” to provide motor power for a
few hours if the engine fails temporarily, plus vibration isolation
between the boat and the diesel, and the ability to use the genset to
charge back up the house bank while properly loading the engine.Ah well, another year (or decade?) for me. I wish all of you
experimenting with electric propulsion the best!
–