T_Dot Posted April 12, 2007 Posted April 12, 2007 ive been playing around with my setup, and have been trying to break there 5 mph barrier, while staying in the 12v range. here is what i have come up with BOAT: - 1436 Alumacraft | 135 lbs - http://www.alumacraft.com/jon_pdf/14.pdf through the top speed without going on a plain forumla, i should be in between the following speeds ESTIMATED TOP SPEEDS: - 12 FT BOAT: 4.44 KNOTS = 5.11 MPH - 14 FT BOAT: 4.83 KNOTS = 5.56 MPH WEIGHT: - 150 = boat - 350 = 2 persons - 050 = 2 12v 55# minn kota endura motors @ 25 lbs / motor - 165 = 3 everstart maxx-29 batteries @ 55 lbs / battery - 050 = estimated gear weight these were on the boat while testing but where not in use. - 050 = 2 12v 30# minn kota endura motors @ 25 lbs / motor - 765 = estimated gross weight SPEEDS: - 1 rear 12v 30# = 3.0 mph - carrying only 1 battery - without carrying 2 12v 55# motors - 605 = estimated gross weight - 2 rear 12v 30# = 3.3 mph - carrying only 1 battery - without carrying 2 12v 55# motors - 605 = estimated gross weight - 1 rear 12v 30# & 1 rea 12v 50# = 4.0 mph - carrying only 1 battery - without carrying 2 12v 55# motors - 630 = estimated gross weight - 1 rear 12v 55# = 3.5 mph - 765 = estimated gross weight - 2 rear 12v 55# = 4.5 mph - 765 = estimated gross weight my final setup will be the 2 rear 55# motors. what i found is that when playing with the motor depth in the water, i can either slow the boat up by dropping them further which causes more drag. i can raise them up just below the surface and get optimum speed. though i noticed on the way home we were averaging 4.2 mph, which i found a bit odd. these are brand new batteries, so i suspect they were not fully charged from sitting in the store for long periods of time. i also dropped down the 1 front 30# motor in the front for steering. i noticed a speed drop so i dont use it while making runs. if i dropped the motor in front, it would reduce the speed from 4.5 mph to 4.2/4.3 mph. though i believe if i switched to a 3rd 55# thrust up front, i can break the 5.0 mph barrier. currently, i have 1436. i have a 24v 82# on rear and 46# 12v up front. running both motors i can get 5.0mph on the gps. it is consistently at 4.6-4.8mph. i use 3 group 29 for the motors, and 1 group 27 for ff and aerator. never come close to running out of juice, yet. new boat will be a 1648 with 2 82# 24v on the rear. lookin forward to it!! above is another setup using my boat. i didnt go with a 24v though. i chose to go dual 12v. if i went with a single 24v, and my motor died, i would be out another $500, and be stuck without a motor. now if an motor died on me now, i would be out $250 and would still have another motor. i do like how he kept it simple, and broke the 5.0 mph barrier. im still debating if i should step up and go to a similar route, but what puzzles me is that i would have to add switches to the 24v setup if i want to use those batteries for my lights, live well or fish finder. i dont want to add switches, because if i forget to turn one off, i might fry my electronics. ... oh decisions decisions what are your speeds and setups? thanks Quote
NJfishinGuy Posted April 12, 2007 Posted April 12, 2007 why dont you get a 24v for the back if you gonna run 2 12v batteries anyway. a 80# would fly on that boat. my buddys 17 foot bass tracker does like 3 mph with it and thats alot of weight its pushing. my 16ft tracker does 1.5mph with my 1 bow 55#. i did try this when i had my john boat and ran 2 30lbs it was quick i must say didnt have a speedo then though. Quote
455 Racing Posted April 12, 2007 Posted April 12, 2007 In my small 14 foot aluminum with a 40 pound thrust on the front, I got 3.3 MPH two weeks ago... I can't wait to try out my 55 pound thrust in two weeks on my 17.5 footer. Phil Quote
T_Dot Posted April 12, 2007 Author Posted April 12, 2007 why dont you get a 24v for the back if you gonna run 2 12v batteries anyway. a 80# would fly on that boat. my buddys 17 foot bass tracker does like 3 mph with it and thats alot of weight its pushing. my 16ft tracker does 1.5mph with my 1 bow 55#. i did try this when i had my john boat and ran 2 30lbs it was quick i must say didnt have a speedo then though. honestly im debating if i should go that route, and move the 55# to the bow. if i setup the batteries @ 24v, is there a way to run 12v accessories of them? thanks Quote
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