View Full Version : wobble
nitro burner
06-26-2005, 03:47 PM
Today one of my Raptor 50's started to wobble as it went invert , not in a roll in forword flight but in a flip. Then as sone as i added more negitive the wobble stopped i looked the heli over and didn't find anything wrong. Do you guys have any idea what the problem is. My head speed is 1850 idle one and 1950 in idle two. I hope you guys can help me. p.s. the only time i get the wobble is in invert part of the flip.
blakka_1
06-26-2005, 05:40 PM
When was the last time you checked your head dampers?. :)
nitro burner
06-27-2005, 06:00 PM
Thay are new red dampers and i lubed them upon install, Last night i replaced the hub with a new one and haven't had time to test it out.
blakka_1
06-27-2005, 08:04 PM
Hmmm....., have you checked the helis tracking?. While in a hover check the tracking to make sure the blades are level and not coming out of track. If the blades are tracking fine in a hover then flip her inverted and watch the blades for tracking again, look closely to see if you can see the blades coming out of track as it sits inverted.
This is a tuff problem as wobbles can be caused by so many things. Here is a list of things that can cause wobbles.
-Bent flybar
-Worn out dampers
-Dampers which are to soft for 3D (your red dampers are fine)
-Dampers that have not been lubed
-Bent spindle
-Out of track blades
-Unbalanced blades
-A gyro gain which is extremely high (very rare but it can cause wobbles)
-A headspeed which is too low (Raptor 50 needs 1800+)
Just go over the list and make sure that your heli is free from those problems. :)
PS. Have you crashed recently?, if so then something may be bent which is causing the wobbles.