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Got the boat out on the water today. It was good to see it run again. Pretty windy at the pond, so the goal was to just take it easy and make sure everything was sorted. Made a handfull of warm-up laps and turns, was looking good, then it just shut down. Brought it back in with the tug, popped the lid, battery lead had come un-soldered on one of my packs. All temps were cool to the touch, including the castle battery connectors. Very weird. Doubtful it was a bad solder joint as I use these packs in other high-amp setups without issue. GPS read 56mph.
Put a second set of packs in and sent it back out. Wind had really picked up so I was just hoping to keep it on the water. kept the boat close to check there was good flow on the water outlets, then sent it to the other end and came back at about 3/4 throttle. Boat was riding nice and dry, then just stopped dead. Brought it back in with the tug, popped the hatch, same thing, unsoldered battery lead. WTF? This time I noticed the teflon liner and ridden up and was touching the motor collet. Can't say I noticed that on the previous run. Hopefully it was causing too much drag on the motor and caused the battery connectors to overheat. Or, maybe my power wires are too long and this is a side effect? I need an external cap bank on this new ESC, so I will look at shortening the wires when I install that.
Anyway, made a best run of 68mph with the same ABC 1915 prop I had run with the stock motor and ESC. Should be able to prop up with the new electronics and better water conditions will help too.
IMG_20200405_123138.jpg
IMG_20200405_123145.jpg
IMG_20200405_123233.jpg
Put a second set of packs in and sent it back out. Wind had really picked up so I was just hoping to keep it on the water. kept the boat close to check there was good flow on the water outlets, then sent it to the other end and came back at about 3/4 throttle. Boat was riding nice and dry, then just stopped dead. Brought it back in with the tug, popped the hatch, same thing, unsoldered battery lead. WTF? This time I noticed the teflon liner and ridden up and was touching the motor collet. Can't say I noticed that on the previous run. Hopefully it was causing too much drag on the motor and caused the battery connectors to overheat. Or, maybe my power wires are too long and this is a side effect? I need an external cap bank on this new ESC, so I will look at shortening the wires when I install that.
Anyway, made a best run of 68mph with the same ABC 1915 prop I had run with the stock motor and ESC. Should be able to prop up with the new electronics and better water conditions will help too.
IMG_20200405_123138.jpg
IMG_20200405_123145.jpg
IMG_20200405_123233.jpg
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