Ive just set up the wings on my Roo, I had a little alignment problem with the retaining bolt on one wing but fixed it by enlarging the hole slightly in the wing.
The problem is with the wings on and the bolt tightened just snug, how much movement of the vertical fins is allowable ?
Some amount of lateral movement is possible when the top of the fin is moved ,it is not absolutely rigid, Is this normal ??
Also what is the ideal location for the elevon servo wires to exit from the wings into the fuse.
Where should one drill holes for the wires to exit.
Nandan

Hi Nandan:

Some movement at the top of the Roo II fins is ok, BUT, Tam and I always used TWO extra screws PER wing to pull the wing, fin and fuse together. We used one close to the leading edge and another one near the rudder servos. They would go thru the fuse and fin and into the wing where a blind nut is waiting

Rout the wires in front of the alum tube and make sure these wires DO NOT get caught when installing the tube.

Good luck and tell us how it flies!!!!

My composite ROO vertical fins do this as well. I see it a lot when I'm taxiing. They just flop around probably more than 1/4". In flight, I believe this causes the ROO to hunt a little on heading. However, it doesn't seem to hurt anything. I was going to try a GYRO on the rudders to see if it takes the hunt out of the flight. We'll see.

The hunting you see with a Roo is dutch roll affect caused by the swept wings. A gyro will help to stabilize it.