Thanks for the clarity, I look forward to the SF Bay sea trials, if you can
do it there, you can do it anywhere!
Jim
On Sun, Jul 12, 2009 at 1:41 AM, Kevin Mannell <kevmann@comcast.
>
>
> Miles,
>
> We understand our relationship with this forum and respect that this is a
> community of people that are interested in boating and electric motor
> technology. We want to belong and contribute to the health of this forum.
> Information we provide will be as honest and true to the laws of physics as
> we can make them, then tested and tested again. If we are wrong, then
> great,
> we learn a truth and can change our thesis to reflect this information. We
> welcome questions and will work to answer them to the best of our ability.
>
> I am in the process of putting up a website for Advanced Marine electric
> Propulsion or AMeP ( <http://www.advanced
> www.advancedmarinee
> date. I will have documents for the Mark IIb with photos and am working
> with
> Arby to produce the data and specs as they have been taken. I have been
> working on and documenting the repower of an Erickson 27' craft (name
> coming
> soon.) and will put that story online with our site so people can see how
> it
> is done, step by step. Splashdown is due July 15th, 2009, so its progress
> has been the focus of my attention for the last three weeks (part- time).
>
> Blue Sky Industries is a cooperative located at 6791 Sebastopol Ave.
> Sebastopol, CA 95472. Thunder Struck-EV is one of the principles in this
> venture, and has received five production motors of the Mark IIb, 24v 2kW
> Brushless DC motor. We have more in the pipeline and are working hard to
> bring this technology to market. Not everybody is a computer guru in Blue
> Sky, so Thunder Struck, having just moved, is now slow at updating their
> site. We can post on this forum faster than they can update their site.
> Thunder Struck is the brick and mortar foundation for distribution, rather
> than an online resource. Advanced Marine maintains a workbench there as
> well, and Arby and Brian meet on a regular basis.
>
> If there is anything more you need, or any rules we should be aware of for
> posting to this valuable site we would be happy to comply.
>
> Kevin Mannell
>
> General Manager
>
> Advanced Marine Electric Propulsion
>
> AMeP
>
> E-MAIL CONFIDENTIALITY NOTICE: The contents of this e-mail message and any
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> confidential and/or legally privileged information. If you are not the
> intended recipient of this message or if this message has been addressed to
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> delete this message and any attachments. If you are not the intended
> recipient, you are notified that any use, dissemination, distribution,
> copying, or storage of this message or any attachment is strictly
> prohibited.
>
>
> From: electricboats@
> electricboats@
> On Behalf Of Myles Twete
> Sent: Friday, July 10, 2009 9:13 AM
> To: electricboats@
> Subject: RE: [Electric Boats] Direct drive brushless DC motors now
> available
>
> Arby, respectfully, you have been claiming literally for months now that
> your new drive assembly was "available at Thunderstruck-
> claim this, and again, while there are a half dozen different makes of
> motors listed on that site, there's not a single web page I can find at
> Thuderstruck substantiating they stock your motor/controller. There are no
> text references, let alone photos, motor specs or motor curves for your
> motor/controller. Now maybe they are available or maybe not---but to have
> folks "call Mark" sounds more like you're asking us to build demand for
> Thunderstruck to buy these from you, stock them and post them as
> available---
> publicly available performance specs for your motor/controller, I'm
> skeptical---
> list that your hardware is available from a substantially website-based
> company that hasn't even mentioned your hardware on their website.
>
> Moderator NOTE to ALL: This is not a sounding board or focus group for
> marketers, developers, thesis writers, etc. Attempts to use this list in
> this manner leads to your list postings being moderated (including being
> delayed, edited or deleted).
>
> -Myles Twete, List Moderator, Portland, Or.
>
> From: electricboats@
> electricboats%
> [mailto:electricboats@
> <mailto:electricboa
> ]
> On Behalf Of arbybernt
> Sent: Friday, July 10, 2009 12:34 AM
> To: electricboats@
> electricboats%
> Subject: [Electric Boats] Direct drive brushless DC motors now available
>
> Now available at Thunderstruck-
> 24v, 2kW, direct drive brushless DC motor specifically designed to replace
> inboard ICEs in sailboats up to 32 feet. With an internal controller, the
> motor unit is sealed to 10' of temporary submersion, yet vented to dry air
> to maintain atmospheric pressure within the motor housing, relieving seal
> pressure and eliminating grease migration. The 1" keyed stainless steel
> shaft extends eight inches from the motor rear face to accommodate hull
> curvature. The shaft exits five inches up from the bottom of the motor
> housing, and in the center of the 9.375" width. The motor housing is 13.75"
> tall, 3.25" thick, and weighs 30 lbs. Mounting is achieved via four 1/2 x
> 13tpi tapped heli-coiled blind holes, arranged symmetrically about the
> drive
> shaft on the sides of the housing. Simple mountings can be fabricated from
> 2"x2" aluminum angle, or with 1/4" aluminum plates secured to both the
> motor
> and engine stringers. Wiring does not require a relay or any external
> battery switch. Battery leads are designed to be connected directly to the
> main battery. A second string can be combined with the primary string using
> a two position switch. Logic power is controlled by a remote switch, and
> consumes a mere 40mA on standby (50mA with an LED power indicator). When
> the
> logic power is off, there is no measurable battery drain. There are no
> exposed terminals, no additional connectors, and no external wires between
> the motor and the controller. With a no-load speed of 1000rpm, the motor
> achieves peak output at 875rpm, making the use of large efficient
> propellers
> possible. Although an aggressive prop will provide peak performance, the
> motor torque range is broad and efficient, making nearly any prop
> functional
> without modifying the boat. I'm currently fitting a Ericson 27 (6800lb
> displacement) with an Advanced Marine motor and an 11x11 3bl prop, having
> met success with both a 30' Hunter (9700lbs, 12x7 2bl prop) in St.
> Augustine, Fl, and a 30' custom sailboat (~8000lb, 12x8? 2bl prop) in
> Marshall, Ca. Both boats have been providing reliable service, and cruise
> comfortably on 24v at 40 to 60 amps. I hope to splash the Ericson this
> weekend, and will be conducting testing next week, pending an unpredictable
> travel schedule, in the challenging conditions of San Francisco Bay. I'll
> post pictures and stats when the installation is complete. Energy will be
> provided by two sets of 2x12v, North Star NSB100FT 100aH AGMs, located
> within the existing motor compartment. Cooling is provided by a shaft
> mounted fan, directing air across the rear of the motor housing. Motor
> control is achieved with two encapsulated switches (logic power and prop
> direction) and a mil-spec wash-down grade potentiometer for throttle level,
> all provided. An optional ParSun throttle interface can be pre-wired to the
> motor. Control wiring is plug-and-play with the ParSun, or with just three
> 1/2" mounting holes for the included switches and potentiometer. The
> switches and pot can be mounted in any exposed area, but I would recommend
> keeping the ParSun covered when not in use to slow aging of exposed rubber
> cables.
>
> I invite your questions and comments. This design is constructed provide
> many, many years of reliable service, with the fastest wearing part, a
> double row sealed bearing (3305) resolving the prop shaft thrust,
> replaceable without disturbing the installed motor. The standard warranty
> is
> five years, full replacement, excluding over-voltage (<30vdc), reverse
> polarity, and shipping. Rebuilding damaged motors can be accomplished by
> returning the motor in the original shipping container. I am offering an
> unlimited lifetime warranty with the a-fore mentioned conditions on the
> first ten units, five of which are now ready to ship from Thunderstruck-
> Contact Mark in Sales during business hours.
>
> Be Well,
> Arby
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
>
>
--
Jim Geraghty
Always... shovel-ready!
415.287.4271
'Believe me, my young friend, there is nothing— absolute nothing— half so
much worth doing as simply messing about in boats.
Mr. Ratty, "Wind in the Willows"
Marin Peace and Justice Coalition
http://mpjc.
.
[Non-text portions of this message have been removed]
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