I NEED HELP. JUST PURCHASED MY FIRST PLANE, A SUPERCUB. HAVE LOTS OF FUN FLYING, BUT IT CONSTANTLY WANTS TO DRIFT TO THE LEFT. MOVE THE TRIM A LITTLE...DRIFT LEFT. MOVE THE TRIM A LOT...DRIFT LEFT. ALSO, I CAN FLY EASILY CLOCKWISE, BUT TRY TO MAKE A LEFT TURN AND THE LEFT WING DIPS SHARPLY AND THE SUPERCUB SPIRALS. EVERYTHING APPEARS TO LOOK O.K, TO MY UNTRAINED EYES, BUT WHAT SHOULD I BE LOOKING FOR TO RESOLVE PROBLEM. ANY HELP WOULD BE GREATLY APPRECIATED...I CAN'T KEEP MAKING RIGHT TURNS!

I can think of a couple of things to look for:
Check the lateral balance. Hold the nose and the tail of the plane and see if one wing dips. You may have one wing heavier than the other. If this happens, add some weight to the wingtip of the other wing.
You said everything appears to look OK. What exactly do you mean by everything?


FYI, it's easier to read questions when they are not in all capital letters. FOR EXAMPLE, THIS IS NOT AS EASY TO READ AS THE FIRST PART OF MY REPLY...

if you have ailerons are they faired with the wings when aileron trim is neutral and the stick at neutral? if you don't have ailerons how about the rudder? do both ailerons or the rudder move with stick input and trim? How much power are you using when flying? If your thrust line is off it'll pull the aircraft. so if it pulls more with throttle up than it does with throttle retarted I'd start with engine thrust line.
Oh and by the way is the wing centered on the fuse and have the same amount of curve on both sides?
Any way, start there and let us know.

Put some right rudder trim into it. See what happens.

Sight down the fuselage sides to see if they taper uniformly. Wing and stab parallel and both at 90degrees to the fuselage?

Look also to see if the motor is pointed to the left.

I have had the SuperCub for 6 months and I have had to change the CG several times because of Drifting and not flying straight

What and whose SuperCub?

Does your model have the proper amount of engine offset? Should be about 3ΒΊ to 4ΒΊ on most short-coupled models like a Cub to offset engine/prop torque.

Little to the right and a little down.

There are probably 30 models on teh market called Super Cubs. Some are small electric RTFs an some are giant scale gas planes. Which do you have?

From your post I presume you have the HobbyZone RTF Super Cub. This is an RTF electric package.

Start up procedure - This is best done with little or now wind.

Frequency check to be sure no one is on your channel
Power up radio
Throttle to zero
All trims to center
Power up plane
Make sure rudder and elevator are straight and align with the fixed parts.
If they are not, DO NOT ADJUST FROM THE RADIO! Adjust them on the plane. Follow instructions if you don't know how.
Range check according to manual

Make sure there are no creases or breaks in vertical or horizontal surfaces. If there are, these can flex in flight and throw off your flight.

Make sure verticle and Horizontal tail surfaces are 90 degrees to each other and there are no warps in the surfaces.

If all is good, you can launch.

If hand launching, flat straight trow, NOT UP, LEVEL.

Climb to height, at least 100 feet and get it flying straight and level and into the wind.

Now, reduce power over 5 seconds till you are gliding. This plane has an excellent glide.

Hands off the sticks for as long as possible.

NOW, WHAT DOES THE PLANE DO?

If it flies straight and level, you have a motor alignmet problem. If it wants to turn, other than from the influence of the wind, you have a control surface or wing problem.

If it wants to dive, you have a h-stab or elevator problem.

If it glides straight and true, then go to 1/2 power.

If it nw wants to turn, you have a motor alignment problem or a slight warp in a tail surface that only shows up at speed.

Glue those ball bearing weights downLOL actually I'm following this one to learn something..THANKS