My EPU-6 (DX-A) Motor Died After 2 Weeks? - RC Groups
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Oct 05, 2002, 11:28 AM
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Manchild's Avatar

My EPU-6 (DX-A) Motor Died After 2 Weeks?

Is it normal for the EPU-6 motor to die so quickly? I flew every day for at least 30 minutes for 2 weeks...that's only 7 hours! Is this normal?

Do I need to "break-in" the EPU-6 before using?

Thanks for your help!
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Oct 05, 2002, 12:42 PM
Tee Sqaured
Thomas Manson's Avatar
are you useing a heat sink? it realy depends on where you live too. if you live in a hot climat, then 7 hours might be normal.also, if your running more than 6 cells, they tend to where out faster. as for breaking them in, i don't know, my motor has about 15 hours of run time and she's fine.
Oct 07, 2002, 01:59 PM
Registered User
BEC's Avatar
Are you using a heat sink? How many cells?

Seven hours is kind of on the low end of what one would expect with these motors, but not totally unreasonable if it's running warm.
Oct 07, 2002, 02:24 PM
Live to ride... and fly!
Tres Wright's Avatar
The GWS CEO stated that 7-8 hours is the normal lifespan of the little DX motors. Most people manage to get more than that out of them, but if you're flying for 30 minutes straight every time you fly you're letting the motor get pretty hot. You can extend the life of the motor of you let it cool off every 10 minutes by either landing or throttling way back in the air. Also as the others have mentioned you need to run a heat sink if you're not already. Especially for extended run times.
Oct 07, 2002, 10:42 PM
Registered User
Tres, I recall him saying ~10 hours lifespan on average. But GWS is pretty conservative on their ratings, so I suspect that the average IPS motor probably lives a little longer than 10 hours. When you throw in all of the manufacturing variables and mix them in with different battery packs, flying styles, etc., it makes sense that some will only live a few hours while others will soldier on for an entire flying season.
Oct 07, 2002, 11:01 PM
Registered User
mattk17's Avatar
I think there is some variability in the little dx-a motors. For what it is worth, I put over 200 flights on one of my original black endcap dx-a motors.

My grey endcap motors seem to last about 100 flights but I burnt out one of the grey endcap motors in less than 50 flights. My average flight is between 5-8 minutes and I always have a heatsink on and wait a few minutes between flights. I also break my motors in by lubricating with an extremely fine synthetic lubricant designed for firearms.
Oct 08, 2002, 12:47 AM
Plane hugging cat
Vonbaron's Avatar
Just to muddle the BTBF of the IPS a little more I thought GWS stated 13 hours?

In reality there seems to be wild variations of motor life.

My first IPS has over 21 hours on it but the cell count I drive it on is between 5 and 6 lately.