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Author Topic:   Electric Trolling Motor
whalertim posted 09-21-2001 07:25 AM ET (US)   Profile for whalertim   Send Email to whalertim  
I am wanting to install an electric trolling motor on my Montauk. This will be a stern mount. (can't stand to drill holes for a bow mount)My question is what is a good size and what length shaft is best for a stern mount?
Samars posted 09-21-2001 07:46 AM ET (US)     Profile for Samars  Send Email to Samars     
Whalertim....It took me all summer (June through September) to decide which electric motor to buy for my 13. I finally decided and it arrived Tuesday. I also did not want to drill into the bow. I did a lot of research..and I may have over did it for a 13 but I now have a 50# thrust Endura MinnKota. Tim, It fits nicely on the transom and as a side note, with the bow on my 13, I can screw the electric on backwards, not damamge the bow and use the three reverse speeds from the bow of the boat... it really is a sharp operation. I also lucked out that the electric does not interfer with cable steering still on the BW.
No pictures yet...taking of to Erie in a few short hours (8)! hope to get pictures then...
Samars posted 09-21-2001 07:49 AM ET (US)     Profile for Samars  Send Email to Samars     
Darn ! sorry shaft length is a 36 and works fine..but then all I have is 13. I did take some measurements from the transom down to the water line. Minnkota has reccomendations for how far into the water their prop should be and I think it was around 12 inches.
CarlRobert posted 09-21-2001 11:02 AM ET (US)     Profile for CarlRobert    

Are you running the trolling motor from the same battery that starts the outboard, or did you install a second battery? I too need to install a trolling motor but cringe at drilling/modifying the bow or gunwales to install the electric motor. When the trolling motor is raised on the transom when you are running the outboard, is there much clearance between the tolling motor and outboard on sharp turns?

Carl R

Samars posted 09-21-2001 01:34 PM ET (US)     Profile for Samars  Send Email to Samars     
Carl, I have a second deep cycle battery located at the rear of the transom and carry longer cables when I use the trolling motor at the front.(I am alone when I do this).
The two batteries are at opposites ends (starboard and port) for weight distribution. Carl, I pull up and unscrew the motor off the transom when running with the outboard...It seems safer and it's not much trouble to do.
The motor then fits almost perfectly under the rear seat.
Bobber posted 09-25-2001 12:40 AM ET (US)     Profile for Bobber  Send Email to Bobber     
Tim- I use a GreatWhite 43 with a 42" shaft on the transom of my 1984 17 SuperSport. The length is perfect for stand up control of the motor. The power is adequate unless I am working into 10 knot wind and/or strong current which requires max power to hold posistion, which defeats the silent approach on wary saltwater fish. On my previous rig, a 17' Cobia CC, I had a 24v bowmount 55lb, which was far superior to a transom mount. Like you, I didnt want to drill holes, but now that I have decided to keep my Whaler instead of trading for a flats rig, I will mount the quick release blocks on the bow and modify the railing so I can get a GWB67 with a 50" shaft. A 12v transom mount will work, I use mine succesfully along the mangrove shorelines and grassflats down here in SoFla but a 24v bow mount 50" shaft is the optimum for a 17' Montauk. Performance (?) on my 17' with the 43lb at max with the J90 trimmed up and a full charge on the dedicated 27 deepcycle is 1.9 mph with no wind or current. The 12v's all draw about 48 amps @ WOT so run time is 3.5 hrs @ WOT with a grp 27, 160 reserve battery. In comparison, the 17 Cobia would draw only 33 amps to move along @ 5.3 mph for 10 hours @ WOT. BIG difference as you can see. Whatever you decide on, get the saltwater motor if you will be on the big salt and dont forget to wire in an appropriate auto reset circuit breaker. Good Luck!

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