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Does anybody have any experience with the Lynch
Super Motor?<br>I'll have to make a decicion pretty
soon, and the compagny seems both serious and well
organized. Always helpfull when asked via e-mail, good info
on the net, and the price seems reasonable. <br>I've
tried to get information from the people who makes "the
electric wheel", but have not recieved a word. Do they
have a web-site? Or is their product still in the
development-phase? Somewhere I heard the incredible price of this
product would be near $10,000.-!!! Not
possible????<br>The Lynch-people recommends a "Curtis
controller".<br>Any comments on this?<br>Thanks to all for making
this club so interesting.<br>Kirsti.

Kirsti: I don't have experience with the Lynch
motor but I have a Ray Electric outboard with Curtis
variable speed controller on a Ray Electric Explorer. The
motor and controller are quiet, work very well and are
far less than $10k. You might check out
www.rayeo.com. They have some technical information under
"articles" which you might find interesting.

Kirsti -<br>I considered purchasing a lynch motor
a couple of years ago for a smaller solar electric
boat, but the price was a bit too high for the high
school project which was limited to 24 volts. Their
specifications are very good, noting 87 - 93% max efficiency at
voltages between 12 and 48. Their web site and literature
has great charts and much info on electric boat
conversions. <br><br>I'm on my third electric boat project and
all three have been inboards with cog belt drive and
series-wound dc motors. The first used a surplus Thermo King
refrigeration motor with an industrial (not marine!) Leeson PWM
motor controller. The last two have used Advanced DC
motors with Curtis PWM speed controllers and Albright
system and reversing contactors (relays). The Advanced
motors were chosen for budget reasons. The Curtis
controllers are rugged units, sealed in a watertight aluminum
heatsink case. They're used in a lot of electric vehicle
conversions. System on/off is usually controlled via a 12v
coil contactor and a 12v coil reversing contactor.
Albright is a typical manufacturer, and they make
"marinized" models. These relays are not cheap - expect to
pay $75-150 for the main contactor and $150 - 225 for
the reversing unit, depending on system amperage. You
have to use them because the Curtis controller isn't
designed as a full h-bridge (reversing)
controller.<br><br>With all this said, the ~$1200 Lynch motor claims much
higher peak efficiency than an Advanced DC motor in the
36-48 volt range (92% vs 85%)and the Lynch's efficiency
curve is very flat through most of it's RPM range. The
Lynch motor weighs about 28# vs the 50-60# of most
series wound motors w/ similar specs. I'd explore using
a $QD brand speed controller - They are British w/
US reps, and their top model controllers have
solid-state revers built into their design. They also have a
number of standard safety features like
acceleration/deceleration ramping linked to reverse. If you throw the motor
into reverse at full speed, you won't fry the
controller. Instead the motor will decel rapidly, reverse
kicks in, then accel starts. 4QD has worked with Lynch
in Europe on boat and go-kart projects. They also
have this nifty weather resistant control box with an
umbilical you can carry in your hand for on-off, speed pot,
reverse, etc.<br><br>Good luck on your
project...<br><br>Chris Krumm<br>krumly@...

Thanks, Chris. <br>I went to the 4QD site and got overwhelmed!<br>Lots of information there.<br>I'll keep meandering on.....<br>Kirsti

Kirsti....sorry for the delay in response but I
have been on the road....we are getting Coast Guard
and Lloyds certifications and going public at the
same time. I need your address or phone number to give
you data as I have been reminded several times that I
can't use this as a forum for advertising the Solomon
motors. Email: ewhel@... and our phone number is
301-274-4479. We will send you a package. And when it's all
said and done...you won't find a drop-in replacement
with thrust bearings, controls, emeter and for less
than our Solomon 35 motor. Oh and did I mention that
no one in the world is providing more regenerative
sailing energy than us.P.S. that Lynch motor has to
breath that salt air to keep cool...and so does the AC
motor.

You should do some research before you keep
sticking you foot in you mouth. Your so busy plugginh your
own product you don't bother to look around to see
what other people are talking about. You stated that
"has to breath that salt air to keep cool...and so
does the AC motor."<br>The Stainless steel motor I
refered to in my post is a TEFC that stand for totaly
Enclosed fan colled. In case you not familiar with the
terminology that means that AIR does not go into the motor on
over the outside and sinze it all stainless steal gues
what the salt air wont bother it. OH and buy the way a
5 HP 1750 RPM motor sells for less tha $700. ALso
if an AC motor is oer driven it will regenerate.

Donalbaer....get a grip on yerself man....Lynch
motors do have to breath...and how much are the thrust
bearings,thrust plate, belts, fans, pullys, and controls for that
AC motor. And beyond that...has anyone called Hunter
in Alachua, FL to ask how well AC motor systems did
on Hunter's Child....and how much regeneration they
collected. And learn how to spell man or at least cut back
on the coffee yer gettin' too wound up. I did all my
homework...that's why our motor is the "only" motor designed
specifically for pushing props and the marine environment.