Originally Posted by
pilotmike
Oscillating 'in the vertical axis' means yawing - did you really mean that? Or are you asking about an oscillation in pitch about the lateral axis?
You're right, I'm referring to an oscillation in pitch about the lateral axis
Originally Posted by
Pilot DAR
Yes, some oscillation is normal, but, of course, too much is very bad! Check that the rudder has no freeplay. If there has been previous firewall damage, rudder rigging is more difficult, and they can be a bit loose, this would enhance oscillation. And, check that there is no freeplay in the elevator. Otherwise, unless something appears unairworthy, don't worry too much about it (and don't look back during stalls!)
Thanks for your answer!
The rudder is fine, but I'll check the elevator more carefully on the next flight.
The airplane has recently undergone maintenance due to an accident and I'm pretty sure the firewall was damaged, so this may be contributing as well