Estes Thor Agena B Build Part 30 Tunnels

Use your aluminum angle again to insure the upper tunnel is straight down the body tube.
The front end of the tunnel is glued .20" from the front end of the BT-52 tube.

Figure 11 of the Estes instructions show the tunnel on the center of the tube. With the front end of the tunnel at .20" from the end, it sits forward and not centered. The picture below shows the correct position.

This is the model up until now. Balsa and seams were filled, all was primed, sanded and the tunnels glued in place.