View Single Post
Old Nov 21, 2012, 01:09 PM
Terry Rigden is offline
Find More Posts by Terry Rigden
Registered User
Terry Rigden's Avatar
UK, Bedworth
Joined Apr 2004
3,189 Posts
Just got back from my second test flight with my stabiliser equipped Easy Star. It's operating on rudder and elevator only.. This time I had turned the gains up on both channels and now have the pots at about 2:30. Conditions were 13mph wind with moderate turbulence, conditions that I would consider flyable without the gyro but not suitable for aerial photography. I'm basing my comments on the aerial video I recorded during the flight.
On the climb out the model seemed more stable in pitch but yaw was still not damped. Transition from power to glide was more difficult to manage smoothly the model tended to stall as the power came off. For the first few transitions I deliberately let the model find its new equilibrium to see how the gyro affected the transition. Without the gyro the model would transition from power to glide smoothly if I reduced power over about 5 seconds. with the gyro this caused a stall , Later I put down elevator in as I reduced power and this helped.
On the glide I set the model into wind and left it hands off as long as possible. It kept it's heading better and seemed more stable in pitch . But if a gust caused a wing to drop then the heading was lost and the nose dropped and I had to intervene to regain the desired flight path.
On approach I needed to apply some firm control inputs and the model seemed to respond less promptly than it did without the gyro. this confirms my observation that the servos run more slowly with the gyro.

So I'm still not sure this thing is working for me. I'm wondering whether to control the rudder via the roll axis on the gyro to try and compensate for the wing dropping. I also have an aileron equipped aerobatic model so may try out all 3 axies on that

Terry Rigden is offline Find More Posts by Terry Rigden
Reply With Quote