ESC failure question
10-04-2009, 04:52 PM
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ESC failure question
Flying my Hobbico Upstar glider this past weekend, had previously only flown 2S in it. Tried out a 3S 2200 and the ESC ended up burning up after a few climbouts. The ESC is the Thunderbird 36 Amp, rated for either 2 or 3S. Is the best conclusion that it was pulling too many amps? Never bothered checking amps from the beginning as I assumed it would be sufficient.
*please see picture
*please see picture
10-04-2009, 06:59 PM
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RE: ESC failure question
That would be a very safe assumption
Switching from 2S to 3S will result in a large increase in current, unless you prop down some.
If you don't already have a wattmeter, now's the time to get one and of course, never make assumptions on how much power you're setup is pulling.
Look who's talking about making assumptions
CC is great when it comes to taking care of their customers, if it's in the guarantee period they'll probably replace it free, worst case about half the price of a new one[8D]
Good luck,
Pete
Switching from 2S to 3S will result in a large increase in current, unless you prop down some.
If you don't already have a wattmeter, now's the time to get one and of course, never make assumptions on how much power you're setup is pulling.
Look who's talking about making assumptions
CC is great when it comes to taking care of their customers, if it's in the guarantee period they'll probably replace it free, worst case about half the price of a new one[8D]
Good luck,
Pete
10-04-2009, 10:28 PM
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RE: ESC failure question
Flag ... estimating amps like that is a killer, I learnt it the hard way too. Burnt motors and ESCs. I am happy that I bought a watt meter.
10-08-2009, 09:16 AM
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RE: ESC failure question
Current wants to go up squared with voltage! Going from 2s to 3s would give an increase in current by a factor 2.25, 125% more current.
Get yourself a current/voltage/Wattmeter, it will pay for itself.
Vriendelijke groeten Ron
Get yourself a current/voltage/Wattmeter, it will pay for itself.
Vriendelijke groeten
Ron
