I just read about a Pearson Packet 18' repowered with a 101 lb thrust Minn Kota. The piece gave a table of AMPS to MPH for the motor. I don't understand. Without seeing the chart, can one of our electricians guess whether the author is giving the number of AMPS the Minn Kota has to draw in order to push the Packet at a given speed?
That's a bit like comparing apples to oranges..........IMHO I think the chart should read Amps/Hp.........or lb.thrust/HP.......Like any good equation, you need two of the values to find the unknown.........Even knowing the Hp/weight ratio would not give you an accurate projected speed......ie. hull shape, displacement, yadda, yadda, yadda. At 756 watts/HP you can determine the power consumption..........thence, E=IxR and P=IxE. Now, you know,,,,,,,,,,,,,the rest of the story.......................hehehe. Lenny
Thanks Lenny. Any way to calculate the Amps a 50 lb thrust Minn Kota would draw pushing 1,800 - 2,000 lbs of boat? The answer would be, "get an amp-meter", right? --Craig ----- Original Message ----- From: "L Smith" <lsmith56@cox.net> To: <montgomery_boats@mailman.xmission.com> Sent: Monday, February 10, 2003 8:54 PM Subject: Electrical Question That's a bit like comparing apples to oranges..........IMHO I think the chart should read Amps/Hp.........or lb.thrust/HP.......Like any good equation, you need two of the values to find the unknown.........Even knowing the Hp/weight ratio would not give you an accurate projected speed......ie. hull shape, displacement, yadda, yadda, yadda. At 756 watts/HP you can determine the power consumption..........thence, E=IxR and P=IxE. Now, you know,,,,,,,,,,,,,the rest of the story.......................hehehe. Lenny
Thanks Lenny. Any way to calculate the Amps a 50 lb thrust Minn Kota would draw pushing 1,800 - 2,000 lbs of boat? The answer would be, "get an amp-meter", right? --Craig Craig The motor name plate should have that information..........We electricians need that info to correctly size the wire........... Lenny
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L Smith