Ok I took my UCD 60 out for it first flight today. The plane handled like a dream at low rates, but seemed be dragging the tail behind at a pretty steep angle even at pretty high speeds... Everyone was like you are tail heavy. Well we checked the CG and it was right on the money... Then we figured maybe I had a mix on to mix in flaps like a "harrier" or somthing... well that checked out ok too... So what I was really wondering is what the heck could be causing this? One guy mentioned that it might be incedence of the elevator what ever that means.... Please help....

Nick, an example of an incidence problem is when the wing, or the the horizontal stab are not in the proper alignment to the fuse. The wing or stab can have a few degrees of down or up angle causing the plane to not fly properly when properly balanced.

A plane that is tail heavy will be pretty touchy on the elevators. Meaning, if you put a little back pressure on the elevators the nose will shoot up and the tail will drop. A common response from a pilot flying a tail heavy airplane is that it's very squirrelly on the controls. It becomes challenging to fly with the nose wanting to porpoise ( up and down quickly) with even a slight touch to the elevators. You may want to try to move the battery or some weight around to make the plane just a tad nose heavy and then see how it flies. One other thing. I also have this airplane with a Surpass 91 FS on the nose. Make sure you are using your finger tips when checking the CG to be as close as possible to the CG reference point. Also, where is your tank mounted? Some guys mount right on the CG which can be challenging if you are already close with an empty tank. Once filled, if your tank is slightly aft of the CG point this could cause a change in the balance.

Check to make sure your stab and wings are level with no down or up angle. Did your wing mount flush in the wing saddle with no gap? if not this too might have caused the problem. It should be nice and flush in the wing saddle. If it is, then check the horizontal stab to see if it's aligned with the wing. It should have zero degrees up or down angle and be flush with the wing. Hard to tell with perfection with the naked eye, but you should be able to get it close enough so that it's not causing you any serious flight problems.

If the plane is flying with a tail-low attitude, but is not overly-sensitive on the controls, then it's likely the incidence of the wing or stabilizer is off. Most likely, the wing is at a negative angle. This will cause the tail to go low in order to put positive angle of attack on the wing when the model's in flight and flying at a constant altitude. If the stabilizer is off a bit, you'd have to carry elevator to keep the model level, but the tail will still seem to be in the normal position.

Also check how the ailerons are rigged. If they're not exactly centered, those big ailerons can change the level-flight attitude of the model. You may find that they need to be moved a bit, and the model will then fly with the proper attitude.

Careful checking will tell you what's up.

(edit to add the aileron note)