ORIGINAL: myersflyers
Since there is only one servo per flight surface the flight loads can be quite high...hence the high torque servos. Fatigue failure or flutter might be a problem with just that little bit of extra bending moment arm.
All I really know it that my set up is just as recommended, and I love the way the plane performs right at the aft C.G. I am planning on bringing it a little farther aft to see if the 45 degree nose up harriers aren't a little less wobbly. It's fine, however, at 60 degrees nose up or higher
David, Thanks for the reply. I gave thought to the fatigue, but overlooked the flutter probability.
Let us know how your CG adjustments work out. I'm hoping to maiden this weekend.
keith
Saturday was a rare calm day in KS so I fiddled with shifting the C.G. aft of the reccommended aft c.g. I started on the aft c.g. limit then added 1/2 oz to the tailwheel. The wing rock in harrier was a slight improvement. So, I added another 1/2 oz. to the tailwheel. This time the rock was noticibly worse along with some of the other flight characteristics. So, by the end of the day I decided to leave the c.g. where I had started.
I also noticed that if the harrier is entered from an elevator with half throttle and no initial bank or yaw, then the wing rock is noticibly less. So, smooth slow entries...or practice... seem to be a better idea. I wonder if I need to alter my mixes on the rudder/ailerson to when I move the sticks together I get a better result. The wing rock is negligible inverted.
Anybody else got any ideas?