Step 1:Separate the sixteen E-1008 Elevator Ribs into individual parts by removing the material shown in Figure 1. Deburr all edges.

Step 3:Cleco all the E-1008A & B Rib halves together as shown in Figure 2. This is the correct orientation of the rib halves, and will insure proper hole alignment when they are attached to the skin. 

Using a #30 drill, final drill the four common holes of the rib halves. Label each half so that they will remain paired together throughout the construction of the elevators.

Step 4: Make sure the flanges of the E-903 Outboard and E-904 Inboard Tip Ribs, shown in Figure 3, are bent 90 degrees. Adjust them with a hand seamer if necessary.

Step5: Straighten the E-903 and E-904 Tip Ribs by fluting between the prepunched holes in the flanges Check the matching holes in the E-913 Counterbalance skin. (note this required quite a bit of work. The art of fluting needs to be practiced and my first attempt did not meet Bill's approval and he worked with me quite a bit on it till it was near perfect. You can force the clecos  to make things fit but that's not good , you need to continue to take the piece out and work on it till when you slip it in the holes should line up with no forcing them. A lesson hard learned on my RV-7 tanks they require some practice and take your time and get them right.)

Step 6:  Make two Tip Rib Assemblies (one for each elevator) by clecoing together tje E-903 and E-904 Tip Ribs and the E-913 Counterbalance skin as shown in Figure 3. Remove any vinyl from mating surfaces before clecoing.

Final Drill the common 1/8" holes in the rib webs using a #30 drill

Drill the common 3/32" holes in the rib flanges and counterbalance skin using a #40 drill. Do not drill the line of holes around the counterbalance skin which do not match-up with a rib, or the holes in the top and bottom of the counterbalance skin indicated by the circle in the figure

Final-Drill the three 3/16" holes at the front of the ribs with a #12 drill.

Step 7: Separate the four E-1022 Shear Clips by removing the material shown in Figure 4.

Final Drill all the holes in the shorter flange of the shear clips with a # 30 drill, then deburr the haoles and any unfinished edges