walkera 22D out of control  
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All Forums >> RC Helicopters >> Electric RC Helis >> Walkera Helis - Dragonfly, etc.. >> walkera 22D out of control
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walkera 22D out of control - 12/26/2005 5:24:26 PM   
wolfpack72


 

Posts: 14
Joined: 12/26/2005
From: bertram, TX, USA
Status: offline 		I just purchased a Walkera dragonfly 22d. I was doing ok with it, then put in a fresh battery and now it spins non stop out of control. I,m not sure if the on board gyro got knocked out of wack or something going on in the tail rotar gears. It did take a few hits but nothing major. any info would be helpful on what may be causing this. Or any info on adjusting the onboard gyro. The book that came with it is pretty much worthless. Thanks
       Post #: 1

RE: walkera 22D out of control - 12/26/2005 7:29:27 PM   
credence


 

Posts: 2518
Joined: 5/19/2005
From: Brampton, ON, CANADA
Status: offline 		Check your tail gears, if they're stripped your heli ain't goin nowhere. Also check and make sure the tail gears are still engaged to the main tail shaft. It can happen where the shaft spins but the gear slips on the shaft.

If everything is still turning snugly, it could be your gyro. Try giving left and right rudder while spooling up the main rotors. If you still have tail control, then something screwy is going on with your gyro.

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True Northern Hobbies, Inc.

(in reply to wolfpack72)
       Post #: 2

RE: walkera 22D out of control - 12/26/2005 9:37:55 PM   
wolfpack72


 

Posts: 14
Joined: 12/26/2005
From: bertram, TX, USA
Status: offline 		I checked the tail rotor and everything seems to be working right. can a after market gyro be plugged into that receiver even though it has a gyro built in? I was looking at the GWS peizio gyro and the futaba gyro for small electrics.

(in reply to credence)
       Post #: 3

RE: walkera 22D out of control - 12/26/2005 10:38:36 PM   
credence


 

Posts: 2518
Joined: 5/19/2005
From: Brampton, ON, CANADA
Status: offline 		I don't think you can bypass the main unit since it has mixing built in. Using an external gyro would probably wreak havoc.

Your best option is to scrap the 3in1 unit all together and just use your own receiver with a heading hold gyro like the GY240 or equivalent. It will negate the need for a tail mix thus still allowing you to use a standard 4CH radio.



Before you start buying stuff though, make sure the tail servo is working properly, and make sure it's compensating in the right direction. I've heard of the receivers sometimes switching servo direction of their own accord for no apparent reason.

_____________________________

Daniel
True Northern Hobbies, Inc.

(in reply to wolfpack72)
       Post #: 4

RE: walkera 22D out of control - 12/27/2005 4:04:47 AM   
dobbit


 

Posts: 1
Joined: 12/25/2005
From: , PHILIPPINES
Status: offline 		take a look at the tail rotor servo too

(in reply to wolfpack72)
       Post #: 5

RE: walkera 22D out of control - 1/30/2006 5:00:33 AM   
rmanaoat


 

Posts: 6
Joined: 1/20/2006
From: , CA, USA
Status: offline 		Hey Wolfpack72,
I'm a newbie.Just bought a 22D and after a few flights same thing happened to me,dang bird went spinning out of control!I was just wondering if u found a fix.

(in reply to dobbit)
       Post #: 6

RE: walkera 22D out of control - 1/30/2006 5:08:06 AM   
rmanaoat


 

Posts: 6
Joined: 1/20/2006
From: , CA, USA
Status: offline 		Hey Wolfpack72,
I'm a newbie.Just bought a 22D and after a few flights the same thing happened to me,dang bird went spinning out of control!I was wondering if you were able to find a fix?
Thanx,
rmanaoat

(in reply to dobbit)
       Post #: 7

RE: walkera 22D out of control - 2/7/2006 9:18:04 PM   
hartar


 

Posts: 33
Joined: 1/23/2006
From: Jacksonville, FL, USA
Status: offline 		I have a 22D that started doing this.. what happened was the tail assemble slipped back slightly and I wasn't getting good gear mesh... It would mesh good enough to fool me into thinking it was okay but was not spinning at full RPM. I loosened the tail assembly and veritical stablizer and pushed it forward to ensure good meshing..this fixed it for me..

(in reply to rmanaoat)
       Post #: 8

RE: walkera 22D out of control - 2/9/2006 6:25:56 AM   
rmanaoat


 

Posts: 6
Joined: 1/20/2006
From: , CA, USA
Status: offline 		I just wanted to say thanks for your help.I took a closer look at that gear and I found some shaved teeth.
Parts on order.Thanks again!

(in reply to hartar)
       Post #: 9

RE: walkera 22D out of control - 2/9/2006 4:27:13 PM   
hartar


 

Posts: 33
Joined: 1/23/2006
From: Jacksonville, FL, USA
Status: offline 		something else I did was I put the tail rotor on the other side.. It didn't seem like the tail rotor had enough power to overcome the torque of the main rotor.. it was okay but just wouldn't yaw clockwise very well.. It seems the tail fin was in the way of the air flow so I just flipped the tail rotor over so it sits on the starboard side of the heli.. made a huge difference.. did some testing on it last night and it seems great!! If interested I let you know how I did it.. its not hard..

(in reply to rmanaoat)
       Post #: 10

RE: walkera 22D out of control - 2/14/2006 1:42:06 AM   
rmanaoat


 

Posts: 6
Joined: 1/20/2006
From: , CA, USA
Status: offline 		I noticed the yaw symptom on mine as well,I'll give that a try as soon as my parts come in (Japan).
As a newbie to this addicting hobby,I greatly appreciate your input.
Question o you know if there is suppose to be a bearing on the empennage before the turning gear is mounted?I don't recall seeing one when I took it apart ,but it seems to show one on the parts diagram.

(in reply to hartar)
       Post #: 11

RE: walkera 22D out of control - 5/15/2006 10:55:26 AM   
22Diraq


 

Posts: 1
Joined: 5/14/2006
From: , ID, USA
Status: offline 		Hey Hartar, I have been looking at my 22D. I am having some of the same torque related issues. How did you change the tail rotor to the other side? I would really appreciate the help.

(in reply to hartar)
       Post #: 12

RE: walkera 22D out of control - 12/22/2006 2:15:44 AM   
ShanePro


 

Posts: 5
Joined: 12/22/2006
From: El Paso, TX, USA
Status: offline 		Hows it going all. I am a newbie to the flying side of this world. I just baught a Walkera 22D This helicopter does not even go 2 inches off the ground??? It also leans to one side no matter what I do. How do I get this coopter to fly more than and inch off the ground? I can not get this copter to do anything that I want. Does anyone have any suggestions on setting this thing up so that it will actually fly? Ane help is greatly appreciated. Thanks
Shane

(in reply to 22Diraq)
       Post #: 13

RE: walkera 22D out of control - 12/22/2006 3:57:23 AM   
ShanePro


 

Posts: 5
Joined: 12/22/2006
From: El Paso, TX, USA
Status: offline 		I have read that alot of you are upgrading the servos. What is a good servo to put on the 22d? Also what about upgrading the motor to a more powerful one to get the thing more than an inch off the floor/ground? Thanks
Shane

(in reply to ShanePro)
       Post #: 14

RE: walkera 22D out of control - 12/22/2006 11:01:05 PM   
bfrunner


 

Posts: 148
Joined: 10/24/2003
From: Mooresville, NC, USA
Status: offline 		To clear things up about using an external HH gyro with the 22D's 4n1, you can install a seperate gyro with the stock 4n1 on the 22D. First unplug the rudder servo from slot 5, then you will need to plug the HH gyro into slot 4 on the reciever, and plug the rudder servo into the HH gyro.

Slot 4 and 5 on the 22D's reciever will control the rudder servo, but slot 5 has the mixing and is the output for the internal gyro which the rudder servo is plugged into for the stock configuration. Slot 4 on the 4n1 does not have any mixing nor is an output for the internal gyro but will drive the rudder servo from the TX. I use a seperate HH gyro with my stock 22d's 4n1 and it holds the tail great! I use a g006 gyro which although on the bulky side works great.

(in reply to ShanePro)
       Post #: 15

RE: walkera 22D out of control - 12/22/2006 11:35:02 PM   
cyclicoverload



Posts: 308
Joined: 12/15/2006
From: Salt Lake City, UT, USA
Status: offline 		Shane, you need to adjust you pitch and throttle curves to get your heli up, the motor is not your problem. Check your settings and add a few more degrees of pitch and have it come in a little sooner.

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(in reply to bfrunner)
       Post #: 16