pariah Senior Heliman Location: West Valley City, UT - United States of America
| All I can give is the standard answer, and it's only slightly helpful:
In "Heading Hold" mode, if a gyro is drifting slowly (which is what it sounds like), you've usually got a vibration problem to resolve.
So possible culprits are an unbalanced tail rotor, main rotors, flybar, clutch, fan. High runout in the fan, clutch, start shart, main rotor shaft, tail rotor shaft, tail drive shaft and mechanism. ie. Anything that rotates.
I've also been told of bearings being the root cause of such problems. (When I looked, I indeed found a damaged bearing & replaced it).
If you have the problem in "rate" (non-heading hold) mode, you want to fix your pushrod lengths so it doesn't pirouette in a steady hover, and then adjust the revo mix to keep it steady at all throttle positions.
-- Helicopters & Women: The last thing I want is one whose head has a few loose screws. |