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Other › Feigao and CC10
02-12-2006 09:46 PM  12 years agoPost 1
Awais

rrApprentice

Mississauga, Ontario - Canada

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I am having a weird problem with this tail motor.

If I don't have a prop attacted to it, the motor works fine. When I attach any size prop to it (tried 3020, 4025, 3030, 4530), the motor starts working at low speeds then if I give it a little more speed it stops. The prop spins back and forth for a while, the motor gets hot and then eventually it stops and the cc10 red led starts blinking.

Did I fry the motor or the cc10? Any help would be appreciated.

Thanks,
Awais

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02-12-2006 10:23 PM  12 years agoPost 2
Martin_gsxr

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Toronto

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Hi Awais, do you have the 12X22mm or 12X30mm ??

Do you setup you cut-off voltage to 2 or 3 cell lipos??

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02-12-2006 10:53 PM  12 years agoPost 3
Awais

rrApprentice

Mississauga, Ontario - Canada

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I have the 12X30mm 4100kv motor. The cutoff voltage is set to 9.0 volts using 3s lipos. It was working fine.

I had a crash, tail fin broke off and the motor fell on the ground.

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02-12-2006 11:07 PM  12 years agoPost 4
Martin_gsxr

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Toronto

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Hi Awais, ok I have a question for you..

I want to go brushless to the tail..

With the stock brush motor, I think the max voltage is 7.2 even with

the high autority EDP50H... The 3-in-1 rev-mixing must drop the 11.1v

to 6-7.2v to the tail, I think..

So with a brushless 12X30mm do you know how much volt goes to the tail

and why we have to setup the cut-off voltage to 3cell if the mixing

already reduce it below the cut-off voltage by the Tx(computer) mixer?

I ask you that because I would prefer to buy the 12X22 Feigao brushless rate at 7.2v with the stock CF tail-blade...

Thanks

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02-13-2006 02:20 AM  12 years agoPost 5
Awais

rrApprentice

Mississauga, Ontario - Canada

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Martin, the stock 3-in-1 does not drop the voltage to 7.2v. Using a lipo its 11.1v. That is why the tail motors burn out so quickly.

Going brushless on tail you would have to use BL esc. The input voltage is how much it would output to the motor. So it will be 11.1v going to the BL motor. Don't go with the 12x22m motor, because I have heard it can burn out.

Have a look at this, I'm going to get this one now. It looks better than what feigao offers. Its 2g lighter and its more efficient than competitive motors. Its even rated at 15v max.

http://www.medusaproducts.com/motors/012.htm

Awais

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02-13-2006 02:23 AM  12 years agoPost 6
Martin_gsxr

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Toronto

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Hi Awais, Are you saying that the voltage to the tail is always the

same at idle or full rudder to the right ?

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02-13-2006 02:34 AM  12 years agoPost 7
Martin_gsxr

rrVeteran

Toronto

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Awais, correct me if am wrong but for example the front motor receive

0 volt when the throttle stick is down and 11.1 volt when the throttle

stick is full up..

And in the same way of thinking, the rear goes in %proportionnal

voltage of the front... (never at 100%)

the front

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02-13-2006 02:52 AM  12 years agoPost 8
Awais

rrApprentice

Mississauga, Ontario - Canada

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Thats correct, the voltage is always constant. Well it drops when the battery loses power. Like for lipos 12.6v at fresh charge then you should stop when it drops to around 9.0v.

What makes the motor run at variable speed is the current. Hence, the higher amperage the higher the speed of the motor and vice versa.

So the front motor receives 0 Amps when its at 0 throttle and at full throttle I'm not sure how much draw but you get the point.

Someone correct me if I'm wrong. You can think of it like this, the volts are like the number of lanes on a highway and the current is how many cars are on that highway.

Awais

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02-13-2006 04:01 AM  12 years agoPost 9
t.edwards

rrApprentice

Lake Geneva, Wisconsin

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Awais, What settings are you running on the CC phx 10? Do you have the computer link? I'm running the short Fiegao, you have to run a small prop with it or the amps go out of sight. Happy Flying, Tom

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02-13-2006 04:18 AM  12 years agoPost 10
Martin_gsxr

rrVeteran

Toronto

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Hi t.edwards, I want to use the short 12X22mm Feigao with gear...

the motors is 7.2 volt rate and I think this is enough with the stock

gear and CF tail blade...

What do you think ? this motor is good or not ?

Thanks

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02-13-2006 04:22 AM  12 years agoPost 11
Awais

rrApprentice

Mississauga, Ontario - Canada

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Tom, I had 9.0v cut off, insensitive, no brake, fixed throttle, standard timing, soft cutoff, and very soft start.

The smaller prop works for little while but then motor gets hot and it shuts off. Prop spins back and forth for a few seconds, then cc10 starts blinking.

Awais

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02-13-2006 05:01 AM  12 years agoPost 12
t.edwards

rrApprentice

Lake Geneva, Wisconsin

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Awais, Sounds weird. Try: 5 or 6 volt cutoff, you want the tail to run after the main motor shuts off, standard current limiting, brake hard, fixed throttle, std timing, soft cutoff, fast start. Do you have the red wire (center) disconnected? If not, pull it out of the connector and tape it.

Martin, No idea with gears. Why bother with gears? just stick a GWS 3020 prop on the motor shaft.

Good luck, Tom

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