sunworksco wrote:Are you direct driving the motor ?
Something is wrong if it is overheating.
I would start by testing the motor under load with a watt meter hooked up.You may consider using a sensored brushless motor direct drive.Novak #3420 motors operate at 0-11,000 rpm and do very well at low speeds,have high torque to move large props,run very cool,have no noise feedback to esc/receiver,have oversized ballbearings and are the equivilant to a 540 brushed can motor.
tsenecal wrote:Original design for the u47 is as a dynamic diver, which is why it needs 500 size motors. It needs to go much faster than scale speed to drive itself below the surface.
Most people drop the original 500 size motors for the u47 because they drain batteries rather quickly, but at the same time, they upgrade to a static diver. this is what allows them to drop to a geared 400 size motor.
for what reason did you drop the original 6 volt design for the 12 volt?
have you kept it as a dynamic diver?
If you have kept it as a dynamic diver, you may be stuck with the original motors and 6 volt operation.
I can't imagine how much amperage the 12 volt setup must have used, even compared to the original setup, that is way overkill.
Sub culture wrote:The point that puzzles me, is that you're having problems with Speed 500e's. These motors should work those props easily without any gearing.
You're quite sure you have 500e's and not another 500 variant?
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