Originally posted by JohnMcGowan
Hi gang...I have a World Models 60 size Zero ARF /w saito 91 .I got this plane 2nd hand . I have a problem w/ it tipstalling on the left wing. I have balanced the plane laterally by hanging it upside down on a string . The left wing was a little heavy so I added 1/4 oz of stick-on weight to the underside of the right wing and it balanced out good.I really have to bring it in hot so as not to see the"tip monster " come out of its hiding place somewhere in the plane
Its really faster than I like to land the plane.
If I wanted to raise both ailerons to give it a washout effect, how much would you raise them OR
would you just try to raise the left aileron? If I raised just the left one , wouldn't this put the plane out of trim? THanks for any help yopu can offer!!! John
If you are receiving no adverse problems during take-off, however wing drop during landing, then IMO, while raising BOTH ailerons for washout could well be the answer, I suspect that the problem lies more in some slight difference in angle-of-incidence between the two wing panels This could be a number of very small differences. I suspect, from your description, the right wing is slightly high.
With No takeoff problems, simply using rudder to catch the wing drop and/or preclude such is also an answer.
You will trim out the problem in normal flight. Then when you slow down the left wing has some down aileron trim, which will cause higher drag on that wing. You probably note a slight tendency for left roll and apply right aileron which causes the left wing to quit flying before the right wing. Thus left wing drop.
IMO. I would add significant aileron differential, prior to doing anything else. I suggest a 2 to 1 on scale models. 2* up per 1* down.
Had a 40 size HOB P-51 way way back. Had a significant warp in right wing. Trimmed out fine in air. Just had to use left rudder to hold wings level during round out. Did it for years.
If it were incidence in both wings, you might well have a takeoff problem like jumping off the ground too soon or maybe not.
Had a scale-incidence (Dumb to do that!) Spit, max power and minimum w-area for engine for Scale Warbird Mini-Reno Racing. Worked months to get reliable take-off with that little monster. Finally raised both ailerons about 10* and It was THERE. In the first race after that fix, just as I was passing overhead a dumb P-51-driver pulled up and sliced the fuse into, half way between the wing and Stab. We were down low, field out there was very much DUST. Spectacular CRASH. Looked like fire and smoke, as she re-kitted herself for about 40 feet along the way. Just nicked his prop! YUCK
Good luck.