Re: 39 foot Advanced Fisherman build underway!

> Robin Jean is for sale, and she is ideal for electric propulsion,,

It would want to be, as it's not well formed for sailing, and the latest is that the oil price is going stratospheric about 2015.
Wow thanks!

http://www.mcssl.com/store/kipawaproductsinc/catalog/product/97f73aa82bc\
b44a1a886ac94f4eee40e

Nels

--- Inbolger@yahoogroups.com, John Weiss <jrweiss98020@...> wrote:
>
> If you go the trolling motor route, look at the Kipawa props
> (www.kipawapropellers.com/). I put one on the 42# MinnKota on my 21'
> SeaPearl, and got another 1.5 kt or so out of it. Dunno how they will
> work for regen, but try calling the company...
If you go the trolling motor route, look at the Kipawa props
(www.kipawapropellers.com/). I put one on the 42# MinnKota on my 21'
SeaPearl, and got another 1.5 kt or so out of it. Dunno how they will
work for regen, but try calling the company...


On 4/25/2011 10:16 AM, prairiedog2332 wrote:
> Seems to me the simplest option may be to try a cheap trolling motor.
> Saw one for $46 on sale a few days ago - 40 lb thrust - pretty much
> useless as a source of locomotion on any size boat though. In my
> research I have the impression the props on those things are pretty
> poor. The Torqeedo much better.
>
> With a trolling motor you already have the mounting flexibility without
> trailing a line and the ability to raise it up when not needed. Plus a
> source of power for your dink. The motor is already sealed. I guess you
> need some sort of smart controller to regen with it?
Seems to me the simplest option may be to try a cheap trolling motor.
Saw one for $46 on sale a few days ago - 40 lb thrust - pretty much
useless as a source of locomotion on any size boat though. In my
research I have the impression the props on those things are pretty
poor. The Torqeedo much better.

With a trolling motor you already have the mounting flexibility without
trailing a line and the ability to raise it up when not needed. Plus a
source of power for your dink. The motor is already sealed. I guess you
need some sort of smart controller to regen with it?

I plan on using only one deep cycle battery or possibly 2 - 6 volt golf
cart batteries of which I have had great service with in an RV.

My "problem" is that the cost to stay overnight in a marina with shore
power if I have to recharge batteries will pay for my gas for several
days since I can usually overnight in any little cove with no amenities
required. Another "problem" is the winds can go light and flukey for
several days on end in the summer. A third "problem" is that not much
happens under 4 knots when regenerating and that might be my max and not
average speed.

I do have a small gas genset I can carry with me but that rather negates
the advantages of going electric in the first place.

Nels



--- Inbolger@yahoogroups.com, "loosemoosefilmworks"
<loosemoosefilmworks@...> wrote:
>
>
>
> Just about any permanent magnet motor would work out... The choice has
to do with what voltage you need to charge at and how many rpm's you can
provide with a a trailing prop of some sort.
>
> When we were cruising Europe we even met someone who had made a towing
generator out of two (6v) bicycle dynamos.
>
> Bob
>http://boatbits.blogspot.com/
>http://fishingundersail.blogspot.com/
>http://islandgourmand.blogspot.com/
>
Just about any permanent magnet motor would work out... The choice has to do with what voltage you need to charge at and how many rpm's you can provide with a a trailing prop of some sort.

When we were cruising Europe we even met someone who had made a towing generator out of two (6v) bicycle dynamos.

Bob
http://boatbits.blogspot.com/
http://fishingundersail.blogspot.com/
http://islandgourmand.blogspot.com/
Thanks Bob,

I will look into this. I wonder if an old reel to reel tape recorder
motor would work? Or from a turntable.

A small boat with a low AR sail plan simply may not have sufficient
hull speed on average to generate much power especially in inland
waters. So I think I would still like to have that 4-stroke I mentioned.

Wonder of a trolling motor can be used as a generator.

Nels


--- Inbolger@yahoogroups.com, "loosemoosefilmworks"
<loosemoosefilmworks@...> wrote:
>
> Nels
>
> Building a tow generator is super easy and cheap
http://www.yachtwork.com/report-wind.htmtells you how to do it..
>
>
> Bob
>
>http://boatbits.blogspot.com/
>http://fishingundersail.blogspot.com/
>http://islandgourmand.blogspot.com/
>
I presently have an 5 hp 2-stroke and am considering upgrading to a 6 hp
4-stroke that is the smallest one that includes an alternator (5 amp) to
help keep the house battery charged.

The suggested option seems to indicate I could get more charging
capability towing a water generator which would work when sailing as
well as motoring and just keep the old motor?

I think the price list at Ampair for the smallest one - the underwater
100 (watts) is about 750 pounds sterling, plus shipping and duty to
Canada and that is with no controller or mounting hardware.

Anything cheaper out there? I can get the 6 hp 4-stroke for about the
same price just down the road about 100 km.

http://www.tohatsu.com/news/6sail_pro.html

Nels


--- Inbolger@yahoogroups.com, "loosemoosefilmworks"
<loosemoosefilmworks@...> wrote:
>
>
>
> On Loose Moose 2 we filled almost all of our electrical needs with an
Ampair Aquair wind/water generator and our epeirience of making power
via towing a prop was very positive.
>
> Drag was minimal and I'd be surprised if we lost more than a quarter
knot in boat speed. In term of how much electrical power we gained the
formula worked out to nothing below 4 knots but at about 4 knots we
started pumping 4 amps into the batteries and over that we got about 1
amp per knot so a 7 knots we'd be pumping in 7 amps. I know that does
not sound like much but crossing the Atlantic it made so much power we'd
have to pull in the prop from time to time to kep the batteries from
over-charging.
>
> Our current boat has an electric motor with regeneration and it works
well and I have not seen any performance difference between when we had
our Atomic 4 inboard and the current (Electric Yacht) system. The upsie
is that whenever we arrive somewhere after a passage s our 48V battery
bank is full.
>
> Bob
>
>http://boatbits.blogspot.com/
>http://fishingundersail.blogspot.com/
>http://islandgourmand.blogspot.com/
>
I understand testing has shown that for a sailboat a free turning propellor causes more drag than if it's fixed. A freely spinning propellor may also cause wear in various ways throughout the transmission.

A propellor is not streamlined like a wing. A propellor is a screw meant to screw through fluid with minimal slippage, and so the rear face is pretty flat. Any streamlining to it's forward surface and leading edge isn't really there to produce lift, for with lift comes a drag penalty, it's meant simply to reduce drag as much as possible. Unless it's a special case, the hydrodynamics free spinning are going to be poor, making it a drag machine much the same at best as many old agricultural windmill designs. There's a reason machines designed to extract power from the wind with maximum efficiency from high lift and low drag are called turbines. The hydro is poor for the fixed propellor when sailing, but it's worse if free spinning - think about the swept area etc.
On Loose Moose 2 we filled almost all of our electrical needs with an Ampair Aquair wind/water generator and our epeirience of making power via towing a prop was very positive.

Drag was minimal and I'd be surprised if we lost more than a quarter knot in boat speed. In term of how much electrical power we gained the formula worked out to nothing below 4 knots but at about 4 knots we started pumping 4 amps into the batteries and over that we got about 1 amp per knot so a 7 knots we'd be pumping in 7 amps. I know that does not sound like much but crossing the Atlantic it made so much power we'd have to pull in the prop from time to time to kep the batteries from over-charging.

Our current boat has an electric motor with regeneration and it works well and I have not seen any performance difference between when we had our Atomic 4 inboard and the current (Electric Yacht) system. The upsie is that whenever we arrive somewhere after a passage s our 48V battery bank is full.

Bob

http://boatbits.blogspot.com/
http://fishingundersail.blogspot.com/
http://islandgourmand.blogspot.com/
On 04/23/2011 11:15 AM, TheM wrote:
 


Just an observation about towing a generator line.

I really think the drag issue is a non issue. Most of the boats I have seen as I have been cruising the last 6 months are dragging around much bigger props than a tow generator. As a general rule, all the boats I have buddied with are SO CLOSE in performance it is just funny. I have a supposedly fast cat, and I can and do often out-sail bigger (and much more expensive) cats, but it is only in small degrees. I have sailed many hundreds of miles with other cats and monos, and between 30 and 50 feet, we are really so close in performance it is not worth even talking about. My boat is powered by a 9.9HP outboard. When I pull it up I might gain 2 tenths of a knot. On a full day of sailing, it won't make me pass someone in front of me, and it won't get me to the anchorage much faster really. So, I have rambled a bit, but I just can't see how towing a generator will slow you down that much. Half the cruisers are already towing a bigger prop than a generator, and I test the theory every time I decide to pull my OB up, or not too.

I hope this helps someone.

Chris Curtis
s/v Romany
curtisfamilyadventures.wordpress.com

--- Inbolger@yahoogroups.com, "prairiedog2332"<arvent@...>wrote:
>
> In my understanding that system relies on sails for regeneration.
>
> However dragging a prop in the water to recharge the battery bank while
> sailing requires a pretty hefty sail plan and can really slow the boat
> unless there is lots of wind. I have heard some talk about regenerating
> while motoring as well which does not sound all that efficient to me,
> especially if you already have an alternator on the engine.
>
> Guess I just do not "get" this hybrid sail/electric/ICE combo.
>
> Nels
> --- Inbolger@yahoogroups.com, GNHBus@ wrote:
> >
> > Robin Jean is for sale, and she is ideal for electric propulsion,, the
> ASMO
> > Marine Thoosa system would move this vessel nicely.
> >
> >
> > In a message dated 4/22/2011 11:08:50 A.M. Eastern Daylight Time,
> > scarbroe@ writes:
> >
> >
> >
> >
> > It appears there are some pictures of the boat, Robin Jean, on flikr
> at:
> >
> > _http://www.flickr.com/photos/8427660@N02/3284998032/in/photostream/_
> > (http://www.flickr.com/photos/8427660@N02/3284998032/in/photostream/)
> >
> > Eric Scarbro
> >
>

Chris, You may very well be right. I sail a Albin Vega 27and It has a feathering prop instead of a transmition. If I completely feather the prop you would think it would be faster?  I have messed with it some and I just can't tell any difference. There might be a tenth of a Knot but you can't prove it by me. If I raced I might be able to see some difference after sailing side by side with another Vega on a leg of a layed out course.                       Doug
Just an observation about towing a generator line.

I really think the drag issue is a non issue. Most of the boats I have seen as I have been cruising the last 6 months are dragging around much bigger props than a tow generator. As a general rule, all the boats I have buddied with are SO CLOSE in performance it is just funny. I have a supposedly fast cat, and I can and do often out-sail bigger (and much more expensive) cats, but it is only in small degrees. I have sailed many hundreds of miles with other cats and monos, and between 30 and 50 feet, we are really so close in performance it is not worth even talking about. My boat is powered by a 9.9HP outboard. When I pull it up I might gain 2 tenths of a knot. On a full day of sailing, it won't make me pass someone in front of me, and it won't get me to the anchorage much faster really. So, I have rambled a bit, but I just can't see how towing a generator will slow you down that much. Half the cruisers are already towing a bigger prop than a generator, and I test the theory every time I decide to pull my OB up, or not too.

I hope this helps someone.


Chris Curtis
s/v Romany
curtisfamilyadventures.wordpress.com

--- Inbolger@yahoogroups.com, "prairiedog2332" <arvent@...> wrote:
>
> In my understanding that system relies on sails for regeneration.
>
> However dragging a prop in the water to recharge the battery bank while
> sailing requires a pretty hefty sail plan and can really slow the boat
> unless there is lots of wind. I have heard some talk about regenerating
> while motoring as well which does not sound all that efficient to me,
> especially if you already have an alternator on the engine.
>
> Guess I just do not "get" this hybrid sail/electric/ICE combo.
>
> Nels
> --- Inbolger@yahoogroups.com, GNHBus@ wrote:
> >
> > Robin Jean is for sale, and she is ideal for electric propulsion,, the
> ASMO
> > Marine Thoosa system would move this vessel nicely.
> >
> >
> > In a message dated 4/22/2011 11:08:50 A.M. Eastern Daylight Time,
> > scarbroe@ writes:
> >
> >
> >
> >
> > It appears there are some pictures of the boat, Robin Jean, on flikr
> at:
> >
> > _http://www.flickr.com/photos/8427660@N02/3284998032/in/photostream/_
> > (http://www.flickr.com/photos/8427660@N02/3284998032/in/photostream/)
> >
> > Eric Scarbro
> >
>
In my understanding that system relies on sails for regeneration.

However dragging a prop in the water to recharge the battery bank while
sailing requires a pretty hefty sail plan and can really slow the boat
unless there is lots of wind. I have heard some talk about regenerating
while motoring as well which does not sound all that efficient to me,
especially if you already have an alternator on the engine.

Guess I just do not "get" this hybrid sail/electric/ICE combo.

Nels
--- Inbolger@yahoogroups.com, GNHBus@... wrote:
>
> Robin Jean is for sale, and she is ideal for electric propulsion,, the
ASMO
> Marine Thoosa system would move this vessel nicely.
>
>
> In a message dated 4/22/2011 11:08:50 A.M. Eastern Daylight Time,
> scarbroe@... writes:
>
>
>
>
> It appears there are some pictures of the boat, Robin Jean, on flikr
at:
>
> _http://www.flickr.com/photos/8427660@N02/3284998032/in/photostream/_
> (http://www.flickr.com/photos/8427660@N02/3284998032/in/photostream/)
>
> Eric Scarbro
>
Robin Jean is for sale, and she is ideal for electric propulsion,, the ASMO Marine Thoosa system would move this vessel nicely.
 
In a message dated 4/22/2011 11:08:50 A.M. Eastern Daylight Time, scarbroe@... writes:
 

It appears there are some pictures of the boat, Robin Jean, on flikr at:

http://www.flickr.com/photos/8427660@N02/3284998032/in/photostream/

Eric Scarbro

On Fri, Apr 22, 2011 at 8:08 AM, Eric Scarbro <scarbroe@...> wrote:
>
>
>
> It appears there are some pictures of the boat, Robin Jean, on flikr at:
>
>http://www.flickr.com/photos/8427660@N02/3284998032/in/photostream/
>
> Eric Scarbro
>


So true. Also, that 30ft Robin Jean is presently on sale at ebay for
$22K, a good price I think, (roughly the cost of the materials).

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=120713248777


The 39 footer presently being built by SA and friends at the
Gloucester Maritime Heritage Center is a much bigger boat!
It appears there are some pictures of the boat, Robin Jean, on flikr at:

http://www.flickr.com/photos/8427660@N02/3284998032/in/photostream/

Eric Scarbro
Hello All. (I sent this out earlier today but to the wrong address (say
what, Susanne ?) )
I know some may wonder about the silence from Gloucester.
Check today's Gloucester Daily Times (April 21 '11) (
www.gloucestertimes.com) about an all-consuming project - no kidding (!) -
drawing all of my energies for months now between getting it organized and
then going. I'll report on it. Too bad that the online version does not
feature the 4 photos. This is the last project Phil and I got to start
together.

I did attend the wake of Dynamite Payson's and will offer a write-up in
MAIB.

As I have energy for it, I am pecking at the pile of unanswered inquiries...
Susanne Altenburger (Phil Bolger & Friends)

----- Original Message -----
From: "BruceHallman" <hallman@...>
To: <bolger@yahoogroups.com>
Sent: Thursday, April 21, 2011 7:21 PM
Subject: [bolger] 39 foot Advanced Fisherman build underway!


I notice in today's Gloucester Times that Susanne Altenberger and
friends are presently building a 39 foot Advanced Fisherman at the
Gloucester Maritime Heritage Center. Anyone in the vicinity? Would
love to see some photos.

(Copy of article pasted below.)

==========

GloucesterTimes.com, Gloucester, MA
April 20, 2011
'Green' boat under development

By Francis X. Quinn
Staff Writer



The construction of what is being called a "green boat" — lean for its
length and long for its weight — is half complete at Gloucester
Maritime Heritage Center.

It's a project the city bills as a new economic development project
funded jointly with funds from a federal Community Block Development
Grant, the U.S. Navy and the Massachusetts Division of Marine
Fisheries.

Built in pieces for assembly that designer Susanne Altenburger likens
to a barn-raising, the finished vessel is expected to stay in
Gloucester for research or patrol use _ and as an object lesson in
what is doable on a larger scale.

Work was going smoothly Wednesday.

"So far, so good. ... It just doesn't look like a boat yet," Altenburger
said.

The 38-foot energy-efficient light patrol craft, five times as long as
it is wide, is designed to maximize fuel efficiency and is seen by
project advocates as a possible prototype for craft that could be
shipped overseas either as a completed vessel or as a kit to be put
together with the aid of a manual.

Construction began more than a month ago. The project is employing
three local residents, according to Sharon DuBois, the city grants
administrator within the Department of Community Development.

Officials say the project could lead to Gloucester playing a major
role in building sustainable, fuel-efficient watercraft for local,
regional and national use.

"We are very pleased to support this partnership." Mayor Carolyn Kirk
said in a statement. "Our community has a long and successful history
of innovation and industry on the harbor."

DuBois said funding includes $75,000 from federal funding channeled to
the city, $50,000 from the Navy and about $10,000 from the state.

When complete, the boat will weigh 6,000 pounds and with 200 horse
power be capable of making perhaps 25 knots.

"Susanne hopes the boat will float right-side-up," the designer, who
doubles as the project manager, said in outlining her goal.

But, Altenburger adds, there's more to it than that.

Should the experiment prove out and replicas get shipped overseas,
recipients in Third World countries, for example, could gain more than
just a vessel.

"If they know how to build this one, they will learn how to do
something else. This is essentially an enablement project,"
Altenburger said.

As the city's announcement notes, Gloucester's fishing fleet was
designed and built to use diesel fuel priced at $1 per gallon, a far
cry from today's costs.

"Therein lies a serious business-opportunity for Gloucester's working
waterfront," Altenburger says in the city statement.

"Demonstrating that advanced low-carbon boats can be built in
Gloucester can be the first step in re-emergence of our local
boat-building capability. More than 4,900 commercial fishing vessels
are licensed by the federal government. Most of those will need to
replace old vessels to remain profitable in an age of rising
energy-costs.

"This new economic development opportunity (can) create jobs and
expand Gloucester's tax base by building sustainable craft for this
port, region and nation," said Altenburger, widow of the late and
renowned boat designer Phil Bolger.

Brainstorming that led up to the boat-in-progress dates back close to
a decade when the Navy began talking to the Phil Bolger & Friends
design firm.

Interest in the project was reaffirmed by the Navy following Bolger's
death two years ago, according to Altenburger.

For the Navy, she says, the potential for making similar vessels
available to friends overseas might serve as "an act of diplomacy" or
as "a goodwill mission."

Additionally, she said, "it's meant to give people food for thought"
in an era of $4-per-gallon or better fuel.

Altenburger promised that the builders will hold an open house in the
not too distant future to show off their work and at some point invite
fishermen to test the completed vessel.

She expressed hope that a follow-up project would be the construction
of an economical fishing boat.

In a time of "green this or sustainable that," Altenburger said, " ...
we're doing it!"

Francis X. Quinn can be reached at 978-283-7000 x 3455 or
fquinn@....


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Groups Links
I notice in today's Gloucester Times that Susanne Altenberger and
friends are presently building a 39 foot Advanced Fisherman at the
Gloucester Maritime Heritage Center. Anyone in the vicinity? Would
love to see some photos.

(Copy of article pasted below.)

==========

GloucesterTimes.com, Gloucester, MA
April 20, 2011
'Green' boat under development

By Francis X. Quinn
Staff Writer



The construction of what is being called a "green boat" — lean for its
length and long for its weight — is half complete at Gloucester
Maritime Heritage Center.

It's a project the city bills as a new economic development project
funded jointly with funds from a federal Community Block Development
Grant, the U.S. Navy and the Massachusetts Division of Marine
Fisheries.

Built in pieces for assembly that designer Susanne Altenburger likens
to a barn-raising, the finished vessel is expected to stay in
Gloucester for research or patrol use _ and as an object lesson in
what is doable on a larger scale.

Work was going smoothly Wednesday.

"So far, so good. ... It just doesn't look like a boat yet," Altenburger said.

The 38-foot energy-efficient light patrol craft, five times as long as
it is wide, is designed to maximize fuel efficiency and is seen by
project advocates as a possible prototype for craft that could be
shipped overseas either as a completed vessel or as a kit to be put
together with the aid of a manual.

Construction began more than a month ago. The project is employing
three local residents, according to Sharon DuBois, the city grants
administrator within the Department of Community Development.

Officials say the project could lead to Gloucester playing a major
role in building sustainable, fuel-efficient watercraft for local,
regional and national use.

"We are very pleased to support this partnership." Mayor Carolyn Kirk
said in a statement. "Our community has a long and successful history
of innovation and industry on the harbor."

DuBois said funding includes $75,000 from federal funding channeled to
the city, $50,000 from the Navy and about $10,000 from the state.

When complete, the boat will weigh 6,000 pounds and with 200 horse
power be capable of making perhaps 25 knots.

"Susanne hopes the boat will float right-side-up," the designer, who
doubles as the project manager, said in outlining her goal.

But, Altenburger adds, there's more to it than that.

Should the experiment prove out and replicas get shipped overseas,
recipients in Third World countries, for example, could gain more than
just a vessel.

"If they know how to build this one, they will learn how to do
something else. This is essentially an enablement project,"
Altenburger said.

As the city's announcement notes, Gloucester's fishing fleet was
designed and built to use diesel fuel priced at $1 per gallon, a far
cry from today's costs.

"Therein lies a serious business-opportunity for Gloucester's working
waterfront," Altenburger says in the city statement.

"Demonstrating that advanced low-carbon boats can be built in
Gloucester can be the first step in re-emergence of our local
boat-building capability. More than 4,900 commercial fishing vessels
are licensed by the federal government. Most of those will need to
replace old vessels to remain profitable in an age of rising
energy-costs.

"This new economic development opportunity (can) create jobs and
expand Gloucester's tax base by building sustainable craft for this
port, region and nation," said Altenburger, widow of the late and
renowned boat designer Phil Bolger.

Brainstorming that led up to the boat-in-progress dates back close to
a decade when the Navy began talking to the Phil Bolger & Friends
design firm.

Interest in the project was reaffirmed by the Navy following Bolger's
death two years ago, according to Altenburger.

For the Navy, she says, the potential for making similar vessels
available to friends overseas might serve as "an act of diplomacy" or
as "a goodwill mission."

Additionally, she said, "it's meant to give people food for thought"
in an era of $4-per-gallon or better fuel.

Altenburger promised that the builders will hold an open house in the
not too distant future to show off their work and at some point invite
fishermen to test the completed vessel.

She expressed hope that a follow-up project would be the construction
of an economical fishing boat.

In a time of "green this or sustainable that," Altenburger said, " ...
we're doing it!"

Francis X. Quinn can be reached at 978-283-7000 x 3455 or
fquinn@....