What we DID.

1. We drilled and clecoed the black piece to the semi-circular piece.

2. We inserted this unit into the bottom of the rudder and leveled it relative to the skin of the rudder leading edge.

3. We drilled and clecoed this unit to the rudder.

4. We inserted the rudder lower hinge pin into the boom tube rudder guide hole.

5. We aligned the top of the rudder with the vertical stabilizer and attached the hinge at the top of the rudder (last photo).

PROBLEM - the top hinges did not meet well because the rudder was at the wrong angle in the boom tube guide hole.

6. To align the rudder (which was only off a little bit) we had to drill the boom tube rudder guide. Our drilling made very little difference, but it was enough for the top of the rudder to align properly. However, we wish we did not have to do this at all.

What we think we SHOULD have done.

1. Drill and cleco only the flat side of the black piece to the semi-circular piece. Wait before drilling around the semi-circle.

2. Insert this unit into the bottom of the rudder and leveled it (same procedure that we did).

3. Drill and cleco only the flat side of this unit to the rudder.

4. Test Fit. Insert the rudder into the pre-installed tubing on the boom and align the top of the rudder with the vertical stabilizer.

5. Drill and cleco a few holes on the semi-circular section at base of the rudder and attached the hinge at the top of the rudder.

First, we attached the black piece to the semi-circular piece that fits into the bottom of the rudder. The black piece is pictured more clearly a few photos down.

We drilled the holes and clecoed the two pieces. HOWEVER, on reflection, WE WOULD HAVE DONE THIS DIFFERENTLY.

We would have only drilled the "flat" side, not the entire black piece. After attaching the flat side to the rudder, we would have test fitted the unit before completing this piece.

Extra photo.

As outlined in the instructions, we inserted the hinge assembly into the bottom of the rudder and leveled it so the tube was 90 degrees to the base.

Here we begin drilling and clecoing the unit to the rudder.

HOWEVER, we think we SHOULD HAVE only attached the FLAT EDGE first. Then test fitted the alignment of the top of the rudder with the vertical stabilizer before drilling the semi-circular holes.

In this photo we laid the bottom of the rudder next to the rear boom tube so you can see how it will be oriented once it is inserted into the boom tube.

A - The black piece at the end of the rudder with the bolt will be INSIDE the boom tube. Notice the orientation of this piece. Inside the boom tube, this black piece will be level to the ground. If you turn it 180 degrees inside the boom tube, it will be about 45 degrees to the ground. That orientation is incorrect.

B - To install the rudder into the boom tube, remove the black piece at the end of the rudder. Insert the black tube into the boom tube rudder guide hole. Then inside the boom tube, install the black piece again, keeping the flat portion level to the ground.

TEST FIT the hinge at the top of the rudder with the vertical stabilizer (see NEXT PHOTO).

C - FIRST ADJUST the semi-circular unit in the bottom of the rudder. Then drill and cleco this section.

This is the hinge at the top of the rudder. It's mate is at the top of the vertical stabilizer. I believe we needed to bend this piece a slight bit more to match it's mate.

We installed the rudder and put the vertical stabilizer on the boom tube in front of the rudder. In order for the two pieces to match up, we bent one of the hinges slightly, then installed them both.