RV-12 Tailcone (Part 10)

Reference: page 10-09, 10-10; 6 hours

Setp 5: Rivet the F-1238_L Snap Bushing Bracket to the F-1279-L Upper Left Skin using the rivets called out.



Step 6: insert the snap bushing into the F-1238-L Snap bushing Bracket.



Step 7: Route a string from the forward end of the existing structure to the F-1211 Assembly. The string will go though the F-1238-L Snap Bushing Bracket, out through the left rudder control cable cutout, the back in through the right rudder control cable outout and structure. Tape both ends of the string to the inside surface of the bottom skin.



Step 8: Place masking tape over all of the holes that are within seven inches of the forward edge of each tailcone skin. The masked holes will be left oopen for the remainder of this section.



Step 9: Rivet all of the open holes of the F-1280-L & -R Left and Right Side Skins. Rivet only the holes in the F-1279-L & -R Upper Left and Right Skins that are common to the left or right side skins. Capture the F1211C Hinge Bracket when riveting the aft end of each left and right side skin.



This completes page 10-9 of Van's Aircrafts plans.

Reference page 10-10

Step 1: Final-Drill #19 the screw holes of the F-12106 Fwd Skin Rib per call-outs.



Builders note: I've been using the hole deburr pictured above. with good results. It was purchased from Cleveland Aircraft Tool.

Step 2: Dimple #8 the screw holes of the F-12106 Fwd Skin Rib per call-outs.



Builders note: As you can see in the picture above the female die has been modified so as to not damage the web on the rib.

Step 3: Dimple 3/32 the nutplate attach holes of the F-12106 Fwd Skin Rib.



Step 4: Dimple 3/32 the nutplate attach holes of eight K1100-08 nutplates.



Step 5: Rivet the dimpled nutplates to the F-12106 Fwd Skin Rib using hardware called out.



Step 6: Guide the F-1210B Plate through the slot in the F-1278 Top Skin. Cleco the Top Skin to the F-1210 Frame. Match-Drill #30 the two outboard-most holes in the F-1210C Angle using the Top Skin as a guide. Check the top skin for deformations caused by the F-1210C Angle at the locations called out. Remove the top skin. Deburr the angle. If deformations were present in the top skin file material from the angle to minimize deformations on the top skin. Cleco the top skin to the F-1208, F-1209 and F-1210 Frames and F-1279-L & _R Upper Left and Right Skins.





Step 7: Rivet the F-12106 Fwd Skin Rib to the F-1278 Top Skin.



Step 8: Cleco, then rivet the F-1283C J-Stiffener to the F-1278 Top Skin as shown.





Step 9: Place masking tape over all of the remaining open holes that are within seven inches of the forward edge of the top skin.