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Reviving an old bird

Old 07-18-2007, 11:46 PM
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Default Reviving an old bird

I have an old Kyosho Soarus that I'm trying to revive from the dead and need some help. Overall it's in good condition but I keep burning up brushed motors. Right now I have a Trinity Komodo 19T spec motor with a Team Orion Pilot 50A ESC and 7.4V, 2200 mAh lipo battery. I have a 50A fuse between the ESC and motor. The prop is a Graupner 11 x 7 folding prop.

I always break in the brushed motors by running them at 1/3 throttle for 5 minutes without the prop, let it cool down and run it at 1/2 throttle for another 5 minutes. Then I install the prop and do it again. Everything works great up to that point. As soon as I go from 1/2 throttle to full the motor starts smoking and stops (and continues to smoke for quite some time).

I've also tried 550 and 600 size 'can' motors along with a Venom Fireball Modified 17x2. They all burn up within 5 seconds of hitting full throttle.

Could it be that the diameter and/or pitch of the prop is too much for these motors? Is the 50A ESC too much?

Anything you could offer would be greatly appreciated.

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