ORIGINAL: opjose
The only times I've seen a ''wiggling tail'' were due to the following:
- Pilot doing this purposely
- Too much slop on a Pull-Pull setup.
- Flutter ( see previous )
- wind pushing the plane.
- Pilot coming out of another manouver, such as a knife edge.
OUt of those : its might be...flutter(but its at low crusing speed), Wind, or Pull Pull slop.
Ill make sure to check the servo and pull pull tension.