On Sunday Tad and I worked on finishing the trim tab assembly. First we riveted the control horn and the bottom of the leading edge. We ended up back-riveting those difficult rivets as we don't have a longeron yoke and using the bucking bar and riveting on such a small piece would have proven difficult. In the end it produced some excellent, very consistent rivets.
Next was to dimple the end tabs for the CS4-4 rivets and drill, debur and prime the hinge. Getting all prepared before we used proseal to fasten the foam ribs inside. To finally close up the trim tab we used the pneumatic squeezer and some patience to set them. At first we used the hand squeezer but found it difficult to use. We drilled those couple out and reset them with the pneumatic.
Then we put the assembled trim tab in the v-block clamps... Done!
Next we'll need to drill the mating hinge on the elevator.
