Reference: page 21-06; 2.0 hours
This entry deals with more construction of the fuselage for the RV-12 aircraft. If you haven't noticed before, I would like to draw your attention to the index on the right side of this blog. In it you will find links to the different pages that have been completed, by page number, other general aircraft topics, as well as links to my RV-10 build.
Step 1: Dimple the nutplate attachment rivet holes in the two F-1267A Crotch Strap Brackets and machine countersink the nutplate attachment rivet holes in the two F-1267B Crotch Strap Brackets.
Step 2: Dimple the nutplates for the F-1267A Crotch Strap Brackets then using the rivets called out by Van's Aircraft in the plans rivet the nutplates to the F-1267A & B Crotch Strap Brackets.
Step 3: Dimple the four #30 holes in the sloped flange of the one remaining F-1215-R Seat Rib as indicated in Figure 2 on page 21-06.
Step 4: Rivet one each of the F-1267A&B Crotch Brackets to the Flaperon Mixer Bracket/Seat Rib Assembly and to the remaining F=1215-R Seat Rib.
Step 5: Dimple the four #30 holes in the sloped flange of the one remaining F-1215-L Seat Rib as indicated in Figure 2 on page 21-06.
Step 6: Rivet the remaining F-1267 A&B Crotch Strap Brackets to the Pulley Bracket/ SeatRib Assembly and to the remaining F-1215-L Seat Rib (from step 5) using the rivets called out in Figure 3.
CAUTION: When cutting lengths of AN257-P3 hinge, be sure enough remains to account for the length requirements of the parts given on pages 23-08, 26-02, and 29-02.
Builder's note: I didn't cut the hinge pin at this time. I don't know if this will make any difference, however on the RV-10 it was a life saver.
Step 7: Cut a 20 inch length of AN-257-P3 and remove the hinge pin. From these two hinge halves, make four F-1237E Seatback Hinges using the dimensions called out by Van's Aircraft in figure 4 on page 21-06 of the RV-12 plans.
Step 8: As shown in Figure 4, draw a line on the flush side of the F-1237E Seatback Hinges centered on the locating hole drilled in the previous step.
This completes all the steps on page 21-06. Until next time!
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