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#1
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Minn Kota model 85a trolling motor specs needed
Does anyone know the thrust and voltage specs for this older Minn Kota
trolling motor ? Is it 12 volts DC And 85 lbs. output thrust ? What vintage is this, year made ? |
#2
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Minn Kota model 85a trolling motor specs needed
CAINE wrote:
Does anyone know the thrust and voltage specs for this older Minn Kota trolling motor ? Is it 12 volts DC And 85 lbs. output thrust ? What vintage is this, year made ? Don't know about your particular model but model numbers do not equal thrust for Minn Kota. 85 lbs would be one heck of a trolling motor anyway. Try phoning their technical help line: 800-227-6433 |
#3
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Minn Kota model 85a trolling motor specs needed
Rick Cortese wrote: CAINE wrote: Does anyone know the thrust and voltage specs for this older Minn Kota trolling motor ? Is it 12 volts DC And 85 lbs. output thrust ? What vintage is this, year made ? Don't know about your particular model but model numbers do not equal thrust for Minn Kota. 85 lbs would be one heck of a trolling motor anyway. Try phoning their technical help line: 800-227-6433 The old Minn Kota motors up to 2002, the model number DID equal the thrust spec- because I checked an old Cabelas catalog the model numbers don't reflect that anymore though thanks for number |
#4
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Minn Kota model 85a trolling motor specs needed
"Rick Cortese" wrote...
Does anyone know the thrust and voltage specs for this older Minn Kota trolling motor ? Is it 12 volts DC And 85 lbs. output thrust ? Unlikely. I don't know that they ever made an 85# motor in 12V. I think the biggest one I've seen before going to 24V was around 60# thrust... AFAIK, the biggest 12V model they make now is 55#. |
#5
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Minn Kota model 85a trolling motor specs needed
John Weiss wrote: "Rick Cortese" wrote... Does anyone know the thrust and voltage specs for this older Minn Kota trolling motor ? Is it 12 volts DC And 85 lbs. output thrust ? Unlikely. I don't know that they ever made an 85# motor in 12V. I think the biggest one I've seen before going to 24V was around 60# thrust... AFAIK, the biggest 12V model they make now is 55#. M-K customer service told me this is a 1984 vintage trolling motor. He said it's 12 volt and "about" 36 lbs. thrust. He seemed unsure because the unit is 22 years old. I tried it out yesterday in a 14' boat with 3 people- it drove that thing almost like a gas engine. WOW- plenty of power. All the trolling motors I've used before seemed like real dogs compared to this. I'm thinking this is about 40-42 lb. thrust at least, by how it drives. It has 5 speeds and forward/reverse. |
#6
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Minn Kota model 85a trolling motor specs needed
"CAINE" wrote...
I tried it out yesterday in a 14' boat with 3 people- it drove that thing almost like a gas engine. WOW- plenty of power. All the trolling motors I've used before seemed like real dogs compared to this. I'm thinking this is about 40-42 lb. thrust at least, by how it drives. It has 5 speeds and forward/reverse. If you're looking for a bit more performance, look at Kipawa Props (www.kipawapropellers.com). I put one on my 42EX and gained about 3/4 kt more top speed on my 21' SeaPearl. |
#7
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Minn Kota model 85a trolling motor specs needed
CAINE wrote:
John Weiss wrote: "Rick Cortese" wrote... Does anyone know the thrust and voltage specs for this older Minn Kota trolling motor ? Is it 12 volts DC And 85 lbs. output thrust ? Unlikely. I don't know that they ever made an 85# motor in 12V. I think the biggest one I've seen before going to 24V was around 60# thrust... AFAIK, the biggest 12V model they make now is 55#. M-K customer service told me this is a 1984 vintage trolling motor. He said it's 12 volt and "about" 36 lbs. thrust. He seemed unsure because the unit is 22 years old. I tried it out yesterday in a 14' boat with 3 people- it drove that thing almost like a gas engine. WOW- plenty of power. All the trolling motors I've used before seemed like real dogs compared to this. I'm thinking this is about 40-42 lb. thrust at least, by how it drives. It has 5 speeds and forward/reverse. FWIW: If anything I think the older MinnKota model numbers reflected amps. Figure 85 amps would roughly translate to 40ish lbs of thrust. Watts is just amps X Voltage so ~1000 Watts. 746 Watts = 1 hp so you may have a ~1.4 hp motor. There's a lot of other things to consider that I am ignoring like efficiency and a 1 hp electric motor is probably equivalent to a 3 hp gas engine. I mean your battery is supplying 1.4 hp of electricity to the motor and it may be 40% efficient but equivalent to 3 times that of a gas motor at that hp. 40 lbs of thrust is nothing to sneeze at anyway. I think the min recommendation for trolling motor is something like 5 lbs thrust for every 1,000 lbs of boat and passengers. 40 lbs in some circles would be good'nuff for a 30' sailboat with lead keel. |
#8
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Minn Kota model 85a trolling motor specs needed
Charlie Morgan wrote:
On Mon, 10 Jul 2006 21:20:04 GMT, Rick Cortese wrote: CAINE wrote: snip 40 lbs of thrust is nothing to sneeze at anyway. I think the min recommendation for trolling motor is something like 5 lbs thrust for every 1,000 lbs of boat and passengers. 40 lbs in some circles would be good'nuff for a 30' sailboat with lead keel. I absolutely assure you that that is not even close to true. I own a MinnKota that was marketed as being 3hp "rated". In other words, it was supposed to have about the same thrust as a 3hp gas motor. I tried it as the aux for a 17 foot 1300 pound sailboat and it was probably more like a 2 hp gas motor. The regular 3.3 hp gas motor on the same boat was a LOT more powerful. Close to double. That 3hp "rated" motor has about 70 pounds of thrust. A 40 pound thrust electric would hardly move a 30 foot keel sailboat in completely still water. A ten year old kid with a paddle would be just as effective. What part of minimum did you not understand? You didn't tell how many amps your motor drew, only what the sales blurb gave out as gas equivalent. If you happen to have an amp meter I would be interested in the results, otherwise it is just sales hype. 40 lbs *IS* a lot if it is *REAL*. That is ~a filled 5 gallon water container. Tie a rope around the neck of a 5 gallon container and pick it up. I think you will find that is about as hard as you normally pull on a line to move/dock a boat. Apparently 40 lbs is what Caine has and he is quite happy with its performance pushing his 14' boat with 3 people. And how big a battery would you need to power an electric that draws 85 amps? A 100 amp hour battery weighs about 70 pounds, and since you can't draw down a deep cycle battery more than 50% without dramatically shortening it's life, you would have about 30 minutes of run time. So that means about a 2 mile range between recharges. OK, here's what is happening local to me: All two stroke outboard motors are bannedexcept a couple of late models and only thing that is legal everywhere is sail/oars/electric. I believe there are only 1 or 2 dams that even let you use 4 strokes. What people are doing is wiring two batteries in parallel so you get double the capacity and ability to deliver double the current. An hour run time is plenty for our reservoirs. Just heard Lake Tahoe is/has banned two strokes too so it may be the wave of the future on fresh water. |
#9
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Minn Kota model 85a trolling motor specs needed
"Rick Cortese" wrote...
FWIW: If anything I think the older MinnKota model numbers reflected amps. Figure 85 amps would roughly translate to 40ish lbs of thrust. I don't think so. Current motors are on the order of 1# thrust per amp at 12V. Also, 85 amps is a HUGE continuous load! I wouldn't want to wire a boat for that! 40 lbs of thrust is nothing to sneeze at anyway. I think the min recommendation for trolling motor is something like 5 lbs thrust for every 1,000 lbs of boat and passengers. 40 lbs in some circles would be good'nuff for a 30' sailboat with lead keel. I don't think so here, too! My MinnKota 42EX (12V, 42# thrust, 36 amps) pushes my 21', 1200# sailboat at about 3.5 kt in flat water -- with an aftermarket prop. In any kind of headwind or sea, a 40# thrust motor wouldn't keep headway on a 30' boat! |
#10
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Minn Kota model 85a trolling motor specs needed
John Weiss wrote:
"Rick Cortese" wrote... FWIW: If anything I think the older MinnKota model numbers reflected amps. Figure 85 amps would roughly translate to 40ish lbs of thrust. I don't think so. Current motors are on the order of 1# thrust per amp at 12V. Look up motors from the 80s. That is what this is. For example model 55 with 24# thrust http://cgi.ebay.com/MinnKota-Trollin...QQcmdZViewItem That will probably truncate but if you really care you can go to eBay and find it. Also, 85 amps is a HUGE continuous load! I wouldn't want to wire a boat for that! It's not my fault. I did not come up with 746 Watts/hp or Ohm's law. Note the capital letters for the units, that is so you can blame it on Mr. Watt and Mr. Ohm. As others noted it probably isn't an 85# thrust like Caine originally thought. 85 amps X 12V = 1.37 hp or roughly equivalent to a 25cc Weed Eater. I'm not sure what you think it is but I guess that doesn't matter. I would bet that even if it does draw 85 amps, that would be peak load i.e. full throttle from standing start or plowing through weeds. I will probably get around to testing a Weed EaterEcho actually motor with my GPS to get top speed in the next month just for the hell of it. 40 lbs of thrust is nothing to sneeze at anyway. I think the min recommendation for trolling motor is something like 5 lbs thrust for every 1,000 lbs of boat and passengers. 40 lbs in some circles would be good'nuff for a 30' sailboat with lead keel. I don't think so here, too! My MinnKota 42EX (12V, 42# thrust, 36 amps) pushes my 21', 1200# sailboat at about 3.5 kt in flat water -- with an aftermarket prop. In any kind of headwind or sea, a 40# thrust motor wouldn't keep headway on a 30' boat! One more time, minimum i.e. for some people just moving the boat in and out of a slip to where they can raise sails. Another one more time, Caine seems to be very happy with his, albeit with a smaller boat but but loaded with passengers. That would mean he is happy with performance. Which all means that you are not happy with marginal performance or maybe sail where there are strong [wind, tides, currents]. That doesn't bother me in the least. That it bothers you and Morgan that some people are happy at lower power levels, well when I said minimum that would mean like maybe 1 in 5 people right? |
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