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All Forums >> RC Helicopters >> Electric RC Helis >> gyro
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gyro - 5/20/2003 12:05:41 AM   
ziomatrixacs


 

Posts: 165
Joined: 4/25/2003
From: Over there., OH, USA
Status: offline 		can and how would you test a gyro because i think my gyro on my hb is broken but when im on the ground and i jerk the heli every thing seems fine
       Post #: 1

gyro - 5/20/2003 1:10:49 AM   
rscamp



Posts: 242
Joined: 6/22/2002
From: Dundas, ON, CANADA
Status: offline 		Assuming you have a tail rotor with adjustable pitch, rotate the heli by hand about the main rotor shaft and watch the pitch of the tail rotor blades. They should move in a direction that, when rotating in the normal direction, would counteract your input.

Rob

(in reply to ziomatrixacs)
       Post #: 2

gyro - 5/20/2003 1:54:56 AM   
ziomatrixacs


 

Posts: 165
Joined: 4/25/2003
From: Over there., OH, USA
Status: offline 		this heli doesnt have that =/ its 2 seperate motor

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       Post #: 3

gyro - 5/20/2003 2:07:56 AM   
rscamp



Posts: 242
Joined: 6/22/2002
From: Dundas, ON, CANADA
Status: offline 		Seems to me it is very similar. You can just confirm that the tail rotor rotation speed is counteracting the heli rotation in the above test.

Rob

(in reply to ziomatrixacs)
       Post #: 4

gyro - 5/20/2003 3:31:50 AM   
ziomatrixacs


 

Posts: 165
Joined: 4/25/2003
From: Over there., OH, USA
Status: offline 		ok i just tryed it and my gyro worked fine i just dont get it my hb wont stop spining i tryd fliping my century gyro , tryed playing with the gain i think i might just get a new gyro and motors

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       Post #: 5

gyro - 5/20/2003 3:53:11 AM   
rscamp



Posts: 242
Joined: 6/22/2002
From: Dundas, ON, CANADA
Status: offline 		Here's something else you could (very, very carefully!) try to be certain you at least have the right sense. This is definitely NOT recommended for anything but very small helis!!!

Dismount the gyro from the heli but leave it connected. Ensure you can hold it clear of the blades. Run the heli at low speed. Rotating the gyro one direction should cause the heli to rotate in the opposite. If it goes the wrong way, reverse (or invert) the gyro and try again.

Rob

(in reply to ziomatrixacs)
       Post #: 6

gyro - 5/20/2003 4:08:19 AM   
ziomatrixacs


 

Posts: 165
Joined: 4/25/2003
From: Over there., OH, USA
Status: offline 		ok i knda tryed SOMETHING like that i fliped the gyro befor and that made it worst i wonder if i mount t with century going across but ill try what you said i just hop i got enough room...think i should remove the blades cuz i got hit by them and it left a scar last time lol and i wonder if its just cuz im going from a warm inside to a warmer out side maby its just the tempetures though they are almost the same in an out side

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gyro - 5/20/2003 4:10:45 AM   
ziomatrixacs


 

Posts: 165
Joined: 4/25/2003
From: Over there., OH, USA
Status: offline 		o yes im pretty sure i got the gyro on right but to make sure can you tell me what its supposed to do like when i jerk the heli clockwise the blades turn slower and the tail speeds up u

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       Post #: 8

gyro - 5/20/2003 4:14:51 AM   
rscamp



Posts: 242
Joined: 6/22/2002
From: Dundas, ON, CANADA
Status: offline 		I don't understand what you are trying to say.

I recommend you seek out local help.

Rob

(in reply to ziomatrixacs)
       Post #: 9

gyro - 5/20/2003 4:17:34 AM   
ziomatrixacs


 

Posts: 165
Joined: 4/25/2003
From: Over there., OH, USA
Status: offline 		yeah im planing on doing that on june 4th cuz there is when my club meets thanks for the help any ways

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       Post #: 10

I got the same prob - 5/20/2003 5:14:49 AM   
flyflie


 

Posts: 40
Joined: 5/15/2003
From: Boston, MA
Status: offline 		I got the same problem and my Hummingbird is brand new , once the heli is 2 feet off the ground it won't stop spinning..
I give it counter ruder but just slows it down it still keep spinning.
Sooo weird, Im ready to throw out the window and getting a Picolo..

(in reply to ziomatrixacs)
       Post #: 11

gyro - 5/20/2003 5:16:54 AM   
kenru



Posts: 78
Joined: 3/2/2003
From: Kenmore, WA, USA
Status: offline 		[QUOTE]Originally posted by ziomatrixacs
o yes im pretty sure i got the gyro on right but to make sure can you tell me what its supposed to do like when i jerk the heli clockwise the blades turn slower and the tail speeds up u [/QUOTE]
It sounds like you have it backward. When (standing behind the heli) you move the tail to the right (counter-clockwise) the tail motor should speed up.

(in reply to ziomatrixacs)
       Post #: 12

i did this - 5/20/2003 5:33:15 AM   
flyflie


 

Posts: 40
Joined: 5/15/2003
From: Boston, MA
Status: offline 		I did this test you sugested and you are right , when i moved the tail the right the tail rotor speed up...so its not bakwards.. maybe the main motor has too much torque for the tail motor, I replaced the stock motor with a Speed 300.
I think I will put the stock motor back, bye the way with the stock motor it worked fine...

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       Post #: 13

gyro - 5/20/2003 5:41:34 AM   
kenru



Posts: 78
Joined: 3/2/2003
From: Kenmore, WA, USA
Status: offline 		flyflie,
I am running a 9-tooth pinion on my Speed 300 (6 volt) with a stock tail motor and it works just fine. I used to have it running with the (old style) stock mixer (I'm running seperates now) with no problem. It almost sounds like the new mixers don't have enough mixing of the tail motor...

(in reply to ziomatrixacs)
       Post #: 14

would you .. - 5/20/2003 5:48:35 AM   
flyflie


 

Posts: 40
Joined: 5/15/2003
From: Boston, MA
Status: offline 		Would you please tell what do I need to run separates? is there any places I can look for a diagram of separates? I think I will go that route myself..

Thank you

(in reply to ziomatrixacs)
       Post #: 15

gyro - 5/20/2003 6:18:42 AM