I'm a relatively experienced flyer. I built a Simple Scout for fun. I set it up with about 33% expo. For the maiden flight, I also used the dual rates to reduce the response in case it was going to flip on take-off or something like that.
It took off under perfect control and i was able to fly it round the sky, while i trimmed it out, but I noticed that after each turn, it was rocking from about 45 deg rolled one side to 45 deg rolled the other way and it took a couple of attempts to smooth it back down to level flight.
I figured out that the problem was down to the expo. With the movement reduced by the dual rates and the expo, there was little response until I had pushed the stick about half way. As I had already pushed the stick half-way with nothing happening, the tendency was to push it all the way. That effectively made the stick into a switch - on or off rather than smooth proportional control. With only expo (no dual rates), it wasn't nearly as bad, but I could still see some effect.
it wasn't until I got home and thought about it that I thought the expo might be the problem, so I set it to zero. The next time i took the Scout it flew perfectly and with much better control.
The more I think about it, the less I like the idea of expo. Has anybody else any thoughts on this.
It took off under perfect control and i was able to fly it round the sky, while i trimmed it out, but I noticed that after each turn, it was rocking from about 45 deg rolled one side to 45 deg rolled the other way and it took a couple of attempts to smooth it back down to level flight.
I figured out that the problem was down to the expo. With the movement reduced by the dual rates and the expo, there was little response until I had pushed the stick about half way. As I had already pushed the stick half-way with nothing happening, the tendency was to push it all the way. That effectively made the stick into a switch - on or off rather than smooth proportional control. With only expo (no dual rates), it wasn't nearly as bad, but I could still see some effect.
it wasn't until I got home and thought about it that I thought the expo might be the problem, so I set it to zero. The next time i took the Scout it flew perfectly and with much better control.
The more I think about it, the less I like the idea of expo. Has anybody else any thoughts on this.