ORIGINAL: Hardin Valley Magic
Well after a week or so of flying every chance I got I now have the bugs worked out. I was having a problem with flutter. Turns out it was in the ailerons. I had a friend make up some control horns with weights on them. I mounted them under the bottom wing and all flutter is gone. I have since gotten a Hitec metal gear high torque servo for the ailerons and taped all joints. Wow !!!! It's no twist but dang what a spin!!!! I am very pleased with the setup I am running (40 la and a 10x6 wooden prop). Its a little hot to land and when the throttle is cut it will almost stop in air.. lol
I have got to get another for a back up!!!
You got FLUTTER on those little ailerons????
I've flown the Ultimate 40S with both a .46 TH engine and a .52, at very high speeds, and never had any flutter problems.
The gap should be so minor that tape should not make any difference.
I did rip out a wing strut after doing some particularly violent maneuvers. The struts hold down is particulary weak on the Nitro Planes model of the Ultimate.
I'm going to put a small piece of angled balsa along the bottom of each hold down, epoxied in place to prevent this from happening again...
BTW: I lost aileron's in that maneuver, but I was able to bring the plane down using small rudder movements and elevator. The long control horn had popped right out... I don't know if I lost the screw or I stupidly forgot to put it in... duh. The plane was unscathed though.
Re: Backup...
That's how it starts! Then they multiply by themselves.