Dual tail motor mod  
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All Forums >> RC Helicopters >> Electric RC Helis >> E-Flite Helicopters >> Dual tail motor mod
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Dual tail motor mod - 7/10/2006 8:37:14 AM   
ElDusto


 

Posts: 3
Joined: 11/4/2005
From: auckland, NEW ZEALAND
Status: offline 		Hi I have just purchaced Dual tail motor mod for my HB CP2, I am unsure where to start with wiring this beast up also adjusting the 4 in 1 to suit. Can someone please help me in seting this up.

Thanks in advance

Dustin
       Post #: 1

RE: Dual tail motor mod - 7/10/2006 4:13:07 PM   
bpd282


 

Posts: 103
Joined: 3/26/2006
From: Littleton, CO, USA
Status: offline 		To wire the dual tail mod is easy.

Hopefully you have two new tail motors to start with. If you look closely on the black endcap of the tail motor, you will see the + end marked. Solder the positive wire to this (red). Then attach another small wire to this solder joint and run it to the positive side of second motor and solder. Repeat for the negative wire.

I checked to see if both motors were getting juice by giving it just enough power to slightly get the tail motors moving. I had the gear and prop off to make sure both engaged.

(in reply to ElDusto)
       Post #: 2

RE: Dual tail motor mod - 7/11/2006 12:08:52 AM   
drenalinejunki92


 

Posts: 8
Joined: 7/1/2006
From: little egg harbor, NJ, USA
Status: offline 		make sure one wire goes to one motor and the other wire to the second motor. then put a wire to the two remaining terminals on the motors
the motors are not to be wired in parallel. this will result in a fire on you 4 in 1 as mine has been sadly taken due to this .

(in reply to bpd282)
       Post #: 3

RE: Dual tail motor mod - 7/11/2006 9:11:54 AM   
Truglodite



Posts: 846
Joined: 4/4/2003
From: Sac, CA, USA
Status: offline 		i know the motors run cooler, but serial motors kills redundancy and doubles the chance of failure. say my buddy and i are at the park trimming our helis at the start of the day. he flies a twin motor tail while i fly single motor. each of us arrived with 1 reliable motor and 1 lemon each. my buddies heli is waiting to piro out in a few minutes, while i have only a 50/50 chance of either sharing his fate or having a good day.

i didn't think a 4n1 would blow with parallel twin tail motors.
guess i'll stick with my direct drive.

_____________________________

whew, r/c used to be so much simpler.

(in reply to drenalinejunki92)
       Post #: 4

RE: Dual tail motor mod - 7/11/2006 11:01:57 AM   
ElDusto


 

Posts: 3
Joined: 11/4/2005
From: auckland, NEW ZEALAND
Status: offline 		Thanks guys, wired up parrallel, no probs

(in reply to Truglodite)
       Post #: 5

RE: Dual tail motor mod - 7/12/2006 3:53:00 AM   
jstang50


 

Posts: 30
Joined: 1/25/2006
From: pembroke Pines, FL, USA
Status: offline 		which way you wiring this thing, Parallel or series...

(in reply to ElDusto)
       Post #: 6

RE: Dual tail motor mod - 7/12/2006 4:04:48 AM   
ride1226


 

Posts: 129
Joined: 8/12/2005
From: Galloway, NJ, USA
Status: offline 		could sum1 show a diagram or close up picture of a working dual tail mod hooked up...thanks...i just think there is a little confusion here...

(in reply to jstang50)
       Post #: 7

RE: Dual tail motor mod - 7/12/2006 5:31:38 AM   
cmassa



Posts: 162
Joined: 1/8/2002
From: Chico, CA, USA
Status: offline 		For parallel connections leave the first motor hooked up like the stock setup - red wire to positive and black wire to negative. For the second motor use two jumper wires, positive to positive and negative to negative from the first motor.

Chris



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Chris Massa
Butte R/C Club

(in reply to ride1226)
       Post #: 8

RE: Dual tail motor mod - 7/12/2006 7:15:30 PM   
ride1226


 

Posts: 129
Joined: 8/12/2005
From: Galloway, NJ, USA
Status: offline 		exactly what i was looking for...thank you very much

(in reply to cmassa)
       Post #: 9

RE: Dual tail motor mod - 7/12/2006 11:21:53 PM   
Enticer


 

Posts: 44
Joined: 1/5/2006
From: Lucasville, NS, CANADA
Status: offline 		How should they be wired? Parallel or Series?

Thanks, Kevin.

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Life's tough, it's tougher when you are stupid.

(in reply to ride1226)
       Post #: 10

RE: Dual tail motor mod - 7/13/2006 12:31:32 AM   
cmassa



Posts: 162
Joined: 1/8/2002
From: Chico, CA, USA
Status: offline 		Mine are in parallel. This has the benefit of sharing the load (voltage, current) evenly over both motors. The motors stay cooler and last longer. Also, If one goes out, the other will keep the tail rotor turning (a little slower though) so it doesn't spin out of control. When in series, if one motor dies they both stop. Also, both motors get full voltage and no protection is gained.

Chris


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Chris Massa
Butte R/C Club

(in reply to Enticer)
       Post #: 11

RE: Dual tail motor mod - 7/13/2006 9:27:11 PM   
drenalinejunki92


 

Posts: 8
Joined: 7/1/2006
From: little egg harbor, NJ, USA
Status: offline 		hey
ok ive read this post many times over. i understand that parrallel is the way to go but i caint get over the fact that when i wired it up that what i blew my 4 in 1. a new one is ont he way but i jsut dont trust it. I read some were else that to protect myself that i should put a 3 amp fuse. i plan on going lower to just have a better protection and if it blows right away go back to the 3 amp. any one have any other ideas to help protect the 4 in1 could one of my brand new motors be faulty. thanks for you help guys.
-paul

(in reply to cmassa)
       Post #: 12

RE: Dual tail motor mod - 7/14/2006 12:36:41 AM   
drenalinejunki92


 

Posts: 8
Joined: 7/1/2006
From: little egg harbor, NJ, USA
Status: offline 		ok after reading the posts again tried to figure out nething i could. i went to test the motors to see if there were ne problems then i relized that the aluminum was also conducting electrictiy could this be a problem or a reason for my 4 in 1 to blow???

(in reply to drenalinejunki92)
       Post #: 13

RE: Dual tail motor mod - 7/14/2006 5:42:11 AM   
cmassa



Posts: 162
Joined: 1/8/2002
From: Chico, CA, USA
Status: offline
quote:

ORIGINAL: drenalinejunki92

ok after reading the posts again tried to figure out nething i could. i went to test the motors to see if there were ne problems then i relized that the aluminum was also conducting electrictiy could this be a problem or a reason for my 4 in 1 to blow???


That should only be an issue if you made a mistake and connected a positive wire to a negative motor terminal which is connected to the case. I suppose with the dual motor mod using an aluminum bracket you could technically just connect the positive terminals and leave the negative to conduct through the aluminum bracket. Using a wire is probably more reliable though.

Chris


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Chris Massa
Butte R/C Club

(in reply to drenalinejunki92)
       Post #: 14

RE: Dual tail motor mod - 7/20/2006 5:27:07 PM   
zenchal26


 

Posts: 163
Joined: 4/6/2006
From: lyman, ME, USA
Status: offline 		there is a small wire going from neg to the motor case does this need to be there

(in reply to ElDusto)
       Post #: 15

RE: Dual tail motor mod - 7/21/2006 9:08:44 AM   
ct420


 

Posts: 1177
Joined: 3/26/2006
From: mansfield, TX, USA
Status: offline
quote:

ORIGINAL: zenchal26

there is a small wire going from neg to the motor case does this need to be there



Yes! It is supposed to be that way. In fact, that little wire is probably why the aluminum bracket conducts negative. The can is screwed to the bracket, and that little wire from the capacitor on the motor is soldered to the can.


(in reply to zenchal26)
       Post #: 16

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