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Hi Gary,<br>Been offshore,just catching up on
news. Regard the 100 lb thrust motors, not sure of the
model you refer to but we have been using a 36 volt
Motor Guide on our 15ft. Black River Skiff. Not sure of
the claimed thurst, but this was considered one of
the highest output submursables of a few years ago,
Doug Little said around 1HP. Also we have used the so
called 3 HP Minn Kota, actual output this unit around .4
HP, on canoes up to 1/2 ton. <br>Really, we have yet
to meet any of the trolling motors which will do the
work required to move heavy displacement vessels. For
years Minn Kota confused everyone by claimed HP equiv.
outputs which were based on anything other than 1HP=746
watts!!! lol! <br><br>We once installed a 3.5 HP ( thats
HP delivered)<br>RAY Electric on a 26 ft Bolger
Speakeasy. With a 1700 lb displacement, that boat would
reach 9.5 mph top speed. We cant imagine just how many
trolling motors it would take to equal that speed, but you
would run out of transom space before you ever saw 9.5
mph! Twin Ray outboards have been used to push 50 ft
tour boats in Europe. We love trolling motors for
small boats, but they are very overmatched in heavy
disp. task. Let me know if you need futher details
regard a specfic problem.<br><br>Happy boating,<br>bud

Thanks for the info Bud.I was looking at the fact
the Ray put out approx.200# thrust but obviously the
trolling motors must be propped for max. static thrust and
drop off as rapidly as speed rises.re the sneakeasy
that was a boat I thought would be an interesting e
boat, was it left an electric?.I am putting together a
home made electric outboard out of bits I had laying
around as an experiment.I will post results when
completed.<br><br>thanks <br>Gary

Gary,<br>Theres been a lot of argument about the
validity of thrust as a power measurment. We are not
qualfied to enter the argument, however thrust is
deftinely variable upon speed. Some EBBA members have
enlightened the argument, but we have stayed out of the
way!<br>The Sneakeasy,which belongs to a friend, is in the
back of the barn now, and has been reconverted from
solar electric to combustion. We needed a quick solar
project and assembled a package from RAY, Photocomm, etc.
in order to travel from Knoxville,Tennessee to
Appalachacola,Florida via sunshine. Yes, the Sneakeasy was a great
hull, but the transom was not optimum for the 2.4kt
average speed under solar. Bolger and Ray both thought
the transom wrong, but the overall length to beam
ratio carried us thru. Great boat! <br><br>If you want
an afternoon speed machine the Sneakeasy will fill
the bill. With enough power,it will go beyond the
conventional launch in top speed without eating up too many
amps. Course everything is a trade off, and the
slightly larger Bolger power sharpies might be better
overall, as they have raked disp. type transoms and would
offer greater range at typical speeds. <br><br>Good
luck with your outboard project.Thats a good way to
have a propulsion unit without spending a lot of
money. The Sneakeasy, with motor tilted up, drew about 6
inches of water. Sure was useful in finding shallow
water anchorages!<br><br>Happy boating,<br>bud

I finally had a chance to give the home made
outboard a short test,considering the small motor it works
well it pushes my 32 footer at about 2 knots.running
on 12 volts and > 60 amps(meter pegs at 60 amps)
the motor is 2 speed and made by Siva Engineering of
England and is out of a self propelled cylinder Webb
mower (anyone have any ideas on hp?)the leg is an old
Mariner 2 hp. with a home made 3 blade 8" prop. It will
come in handy when drifting for flat head ,instead of
starting the diesel to move out from shore 500 meters or
so when you drift in.<br>As a bonus it cost nothing
to build as I had all the bits laying around
home.but now I have to buy a deep cycle battery,ahh
well.<br><br>Gary