There had been a number of accidents blamed on the lack of strength in the center section and possible flutter of the ailerons. I had previously decided to use control rods for the aileron alleviating the need for constant monitoring of the control cable tension. Just as I was going to take the completed fuselage to the airport, Zenith came out with an upgrade for the center section and the addition of aileron balance weights to the control horns. I disassembled the center section area to carry out the upgrade.

Center Section and console removed

Center Section and control system removed

Rear upright still held by Cleco’s

All electrical/Control cables removed from the center section

Center section instrument panel removed

The center section rebuilt (front)

The center section rebuilt (rear)

Center Section refitted

“Tee” strengthener in place

Floor to wall strengthener

Reinstalling the center arm rest (1)

Reinstalling the center arm rest (2)

Reinstalling the center console