The difference with the left elevator is the incorporation of the trim tab. The stiffeners are shortened on the inboard side and space is made for the trim tab solenoid motor.
The centering of the motor is important for the linkage to extend to the trim tab without interference. Unfortunately the dimension shown on the plans is in error and must be carefully corrected. A Z bracket supports the motor on the access door which is screwed to the elevator into nutplates. These have to trimmed off to the borders of the access door after riveting to permit the installation of the motor.
The trim tab itself is a challenge as the end tabs need to be bent over each other. A wedge shaped piece of hardwood is inserted in the trim tab skin and the tabs are bent over against the wood. Mine came out pretty good, but not perfect. After assembly the trim tab is mounted to the elevator with a piano hinge which needs to be aligned carefully to permit the trailing edge of the trim tab to coincide with that of the elevator.
Time: 8 hours
Leonard's RV-7A Build 