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Problem with astroflight motor

Old 07-16-2006, 09:08 AM
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Default Problem with astroflight motor

I was attempting to convert fro nitro to e-power (I have always been a nitro person). I followed the suggestions form several sources on this site and have had a very negative result.

I have a CC 45 (should be more than what is required) an astro 803hv (voyager e) and a 4000mah 10c lipo pack.
I was hovering in the basement (doing setup/blade tracking). After about 15 minutes (total) hover time.
(4 to 5) short duration hovers (3 minutes or less), I did a 5 -6 minute hover, both the motor and the speed controller
got very hot. I recharged the LIpo pack and tried to hover again. Within a few seconds the seed controller, wires for the controller to the motor and the
motor were very very hot. I took the motor off of the LMH and tried to run it with the speed controller both get very hot within seconds at the lowest
possible RPM.

I think one or the other is toast or possibly both.
Any way to tell what is good and what is not?
Is there a motor that has more power than the astroflight?
Old 07-17-2006, 05:36 PM
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Default RE: Problem with astroflight motor

I have been told that the Voyager E Astro engine as a very high KV. I might be wrong on that info, but if it is is correct, adding a lipo to that and you are talking about a very hot package.
Old 07-17-2006, 05:37 PM
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Default RE: Problem with astroflight motor

The hacker C40 is a 550 size that people put in there corona. It has a much higher power rating.
Old 07-18-2006, 02:02 PM
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Default RE: Problem with astroflight motor

Cambo,

Thanks, I am going to the LHS today. They said that they will test thc CC 45 and the Astroflight and tell me which are faulty.
Hopefully only one is toast. If it is the Astroflight. I will replace with either the Hacker that you suggested or the Mega 16/15/3.

Any have any input on which is better?
Old 07-18-2006, 04:58 PM
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Default RE: Problem with astroflight motor

Well,

I don't have either of them but this is what i have herd

The hacker c40 is a 550 size can and puts out around 400-450 watts i think.
The mega motor 16/15/3 is about the same as your astro flight, i would say 300 watts of power
The mega motor will get hot

Price wise, the hacker is like 180 while the mega is 80

I myself am running the multiplex 480 4d, 72 dollars.
It putts out 250 watts but the heli flys great.

For better advice go to the electric heli forum on rcgroups.com
Old 07-20-2006, 12:28 PM
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Default RE: Problem with astroflight motor

I called Astro Flight and talked to one of there Technical people. They are replacing the motor for no charge.

I did get some interesting info from the person that I talked to.

They recommend that hover throttle should be 3/4 of full throtle. He stated that at half throttle in hover you are using more amps (then at 3/4 throttle) and stand the risk of over-heating or over-loading the motor and burning it out.

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