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Old Sep 13, 2006, 10:49 PM
Ship first, Improve often
L0stS0ul's Avatar
Virginia
Joined Apr 2005
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What to extend? Motor wires or Battery wires?

I've got a new twin motor plane coming soon and I know that I'm going to have to extend the wires on my 2 thunderbird 18 speed controllers to make sure that everything can contact. If I have to extend either the motor or the battery wires which ones should I extend. I have read different things all over the place.

Thanks
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Old Sep 15, 2006, 03:17 PM
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Creteil, France
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I would say that you should extend battery wires because motor wires are driven in PWM (pulses) and therefore will generate high noise level if too long.

My $0.02
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Old Sep 16, 2006, 09:37 PM
"Each Day Is A Lesson"
diver don's Avatar
Goldsboro, NC
Joined May 2004
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Check out Issue #3 of the Castle Scribe above.

Joe talks about twin setups and his final statement is to run both ESC's of a common battery source (very important).

That being said it would be the battery wires that should be extended.( common battery pack in the fuselage tied into the two or more motors) BUT!

Joe has also said that long battery wires could cause voltage spikes that could blow up the ESC's.

So the definite answer is WHO THE HELL KNOWS?

Hopefully some one from Castle will chime in and give us a definitive answer once and for all.

DD
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Old Sep 17, 2006, 02:39 AM
myk
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http://www.rcgroups.com/forums/showthread.php?t=569212

Mike
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Old Sep 17, 2006, 07:36 AM
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How about someone from Castle piping in on this issue?
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Old Sep 17, 2006, 12:32 PM
"Each Day Is A Lesson"
diver don's Avatar
Goldsboro, NC
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Think that most of the guys from Castle are up at NEAT.

I'm not looking for a response from them until the first of the week.

DD
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Old Sep 17, 2006, 09:59 PM
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Olathe, KS
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Extend the wires on the motor side.
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Old Sep 17, 2006, 10:37 PM
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Canada's East Coast, "An Ocean Playground"
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Yup...works for me...on the Pondside there was simply NO CHOICE as the AXI motor is about 6 inches above the fuselage and the esc is under a hatch so the motor wires were lengthened four inches so the connections would be under the hatch as well.

Bill
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Old Sep 18, 2006, 01:32 AM
"Each Day Is A Lesson"
diver don's Avatar
Goldsboro, NC
Joined May 2004
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Joe,

Thanks for the reply.

Do you have a recommendation for the max length for battery wires in general.

Thanks,

Don
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Old Sep 18, 2006, 01:35 AM
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Olathe, KS
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We recommend a maximum combined length of 12" between the ESC and battery.
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Old Sep 18, 2006, 01:49 AM
"Each Day Is A Lesson"
diver don's Avatar
Goldsboro, NC
Joined May 2004
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Thanks Joe.

What does "combined length" mean?

Did you get over to NEAT?

Don
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Old Sep 18, 2006, 01:59 AM
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Olathe, KS
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No, unfortunately. Maybe next year. Shawn and Lee represented us this year. Lucky dogs!!! Can't wait to see the pictures and videos they bring back...I really hope Lee brought his 8mp digital SLR camera and snapped a bunch of pics. Combined length meaning the wire provided on the controller and the wire on the battery combined should not be more than 12".
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Old Sep 18, 2006, 02:12 AM
"Each Day Is A Lesson"
diver don's Avatar
Goldsboro, NC
Joined May 2004
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Thank you Sir.

What are you doing up this time of the morning.
I thought I was the nut in the area.

Yea,
I had jury duty , so I got screwed this year, but I WILL be there next year.
Just call me "Hang em high Don".

Have a good one,

Don
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Old Sep 18, 2006, 08:58 AM
Ship first, Improve often
L0stS0ul's Avatar
Virginia
Joined Apr 2005
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Thanks for the info Joe,

What about the max length from the ESC to the Motor. Since that's the one I'll be increasing What should be the max length for each motor wire?

Thanks again.
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Old Sep 18, 2006, 10:27 AM
"Each Day Is A Lesson"
diver don's Avatar
Goldsboro, NC
Joined May 2004
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LS,

What plane are you waiting for?

DD
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