ORIGINAL: acdii
The plane is tail heavy. Doesnt take much either. Ihave a 4*120 and the first couple times I landed it, it would bounce. Turned out to have lost almost 2 ounces of nose weight from the time Ifirst ran up the engine, to the time of the first flights. Ifound the weights in the back of the truck and glued them back on, now the plane lands good, without bounce no matter what the speed is.
This is half of the equasion, Its a combination of CG and gear placement. bringing the CG back will increase the distance between CG and wheel axles. I initally set up my designs so that the wheel axles are about 20% to 25% forward of the CG. After test flights and CG adjustments I usually have to adjust the gear as well. Too far forward will cause a sudden change in positive AOA and the rusultant lift will bring you back in the air. Too far back and you will nose over. In this case, I would bend the gear back about 1" and give it a try. For trike gear adjust the nose wheel so the airplane sits slightly nose down at rest.