RE: Vectorflight Edge 540 build
Another flight, this time with the CG moved back to 4 1/8". It was 4". It makes a difference alright. Plane needed less up elevator trim to fly upright, and, as I was hoping, less down to fly inverted. Also, knife edge looks improved on low rate rudder which I wasn't expecting, but I suppose it makes sense. Landings, of course, wanted more down all the way to the flare, and less of a flare. This I was expecting. I would not call the plane pitch sensitive yet, so I still have some room to go if I want to later.
I tried my first spins(on this plane, anyway) tonight, and wow, they look good. Not flat, but much flatter than any plane in my hangar. Ok, that's not saying much, but it sure made me smile. I used to wonder what the big deal about spins was until tonight, now I think I understand what a spin is supposed to look like. It stopped nice and quickly, too, right where I wanted it. This was also on low rates.
Tried another avalanche on high rates, and the snap seemed better as well as the exit. I spent most of my time practicing upline entries, which ironically seemed better with the cross wind conditions. I think I was concentrating harder, and doing more correcting right after entry if needed, but it sure would be nice if I was good enough just to pull back on the stick and enjoy the ride. Verticals are definitely not unlimited, but will last much longer if I enter at a higher speed. I really want to try a 14x5; I think Zinger makes one.
Shakes, I was reading that a good test for throttle-elevator mixing is 45 degree downlines. I have not tried that; my only clue was landing approach, which is a shallower downline. Let me know what you find out and how much mix you need. I have not broken any hinges yet, but I've only flown 8 times. Does your plane also require aileron correction at higher speeds? I'm pretty sure mine does; it needs more left as the speed increases(like right before an upline, which might explain why I can't seem to enter wings level all the time).
Ed in MI, Vectorflight Edge 540 , ST 0.90, 14x6, CG @ 4 1/8"