today was my first running of my uboat since I bought a bigger battery to operate the boat for longer cruises. I used to use a 3300 but have gone to using a 5000.
The boat is six feet long and ways approximately 50 pounds. it is so heavy because it originally was to have watertight compartments with a lot more air and so it needed more ballast to sink. I had many problems with leaks so I put in a wtc from caswell but I still had a lot of lead that was in the boat to help it go down. Because of this weight I have had to run the boat at 3/4 to full speed to get a good walking speed.
The props pitch has been altered to be less so that the battery would not overheat which it did on its first trial last year but since the pitch was changed I had no overheating problems with the battery. I went on my first real trial after balancing the boat and all was going very well,
My only wish is that the water I was in would have been a little clearer because it was easy to lose sight of the boat when it was under water. Now the heart of the problem, I am 15 minutes into the patrol and I surface but the boat was slow to respond so I blew the tank with the propel charge and she was fully surfaced. I tried to bring it back in but the action were hesitant. as I got closer too me i could hear the motors run for about 6 seconds then shut off for about 10 to 30 seconds. They were cycling on and off. reverse speed was almost non existent when I tried it. (this boat is so big and heavy it only turns going forward due to the props being in front of the rudders). I thought that maybe the battery had run out of power. strange since the lipo guard had not surfaced the boat or blown the tank but it might have occurred after I blew the tank???
I took it home and rinsed it off which took about 30 minutes before cracking open the wtc. the engines were fairly warm to the touch but not too hot. I tried to charge the battery but the balancer reported one cell over charged. I drained it at .85 amps and I got at least 1000 mah out before I went to bed and when I woke up the charger was reporting it timed out, if I knew how to work the charger better I could have gotten the final mah reading before it shut down but that was my fault.
I don't think the battery was too low. I am wondering if I overheated to motor controller a viper sub 10. any suggestions I am including a picture of the setup. could the proximity to the motors and the wiring wrapped on one side of controller allowed the controller to overheat? could just moving the wires away give enough breathing room for the controller or do I have to move it closer to the reciever and further away from the heat of the motors? or could the motors overheated and caused problems??
I bought everything but the servos from caswell so there are no wild card parts in the wtc setup they are all known factors
The boat is six feet long and ways approximately 50 pounds. it is so heavy because it originally was to have watertight compartments with a lot more air and so it needed more ballast to sink. I had many problems with leaks so I put in a wtc from caswell but I still had a lot of lead that was in the boat to help it go down. Because of this weight I have had to run the boat at 3/4 to full speed to get a good walking speed.
The props pitch has been altered to be less so that the battery would not overheat which it did on its first trial last year but since the pitch was changed I had no overheating problems with the battery. I went on my first real trial after balancing the boat and all was going very well,
My only wish is that the water I was in would have been a little clearer because it was easy to lose sight of the boat when it was under water. Now the heart of the problem, I am 15 minutes into the patrol and I surface but the boat was slow to respond so I blew the tank with the propel charge and she was fully surfaced. I tried to bring it back in but the action were hesitant. as I got closer too me i could hear the motors run for about 6 seconds then shut off for about 10 to 30 seconds. They were cycling on and off. reverse speed was almost non existent when I tried it. (this boat is so big and heavy it only turns going forward due to the props being in front of the rudders). I thought that maybe the battery had run out of power. strange since the lipo guard had not surfaced the boat or blown the tank but it might have occurred after I blew the tank???
I took it home and rinsed it off which took about 30 minutes before cracking open the wtc. the engines were fairly warm to the touch but not too hot. I tried to charge the battery but the balancer reported one cell over charged. I drained it at .85 amps and I got at least 1000 mah out before I went to bed and when I woke up the charger was reporting it timed out, if I knew how to work the charger better I could have gotten the final mah reading before it shut down but that was my fault.
I don't think the battery was too low. I am wondering if I overheated to motor controller a viper sub 10. any suggestions I am including a picture of the setup. could the proximity to the motors and the wiring wrapped on one side of controller allowed the controller to overheat? could just moving the wires away give enough breathing room for the controller or do I have to move it closer to the reciever and further away from the heat of the motors? or could the motors overheated and caused problems??
I bought everything but the servos from caswell so there are no wild card parts in the wtc setup they are all known factors
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