Saturday, June 16, 2012

Vans Aircraft RV-12 Build, Section 23 Side Skins (part 3)

Reference: page 23-03, 23-04; 2.0 hours

So here we are again working on the RV-12 LSA aircraft by Van's Aircraft. This entry deals with the building of the center sections and side skins. So, let's get to it!

Step 1: Machine countersink the top face of the Roll Bar Attach Plates for the nutplate attach rivets and the five locations called out in Figure 1 on page 23-03 of the RV-12 plans to create mirrored left and right parts.

Step 2: Rivet nutplate to the Roll Bar Attach Plates as shown in figure 1. (Temporarily thread a bolts into the nutplate while riveting.

Builder's note: The bolt would not fit into the holes on the plates, so I used a unibit and drilled them out to 1/4".

Step 3: Rivet the Mid Fuse Brace to the aft side of the Bulkhead sides. See figure 2 on page 23*03 of Van's Aircraft's plans for the RV-12.

Step 4: Rivet the Roll Bar Attach Plates and Mid Fuse Brace Close-out to the Mid Fuse Brace and Bulkhead Sides (Do not rivet the roll bar attach plate to the F-1204F-L and -R Aat side bulkheads.

Builder's note: In the picture above I'm pointing at a seventh rivet not called out by Van's Aircraft. The RV-12 plans say there are only six rivets. So I went ahead and put a rivet in the hole. Only time will tell if this was a mistake. In that case I will drill it out.

This completes page 23-04

Reference page 23-04

Step 1:
Cut apart the deburr the Arm Rest Brackets. See figure 1 on page 23-04.

Step 2: Rivet the Arm Rest Bracket to the Bulkhead Side Channel. Repeat theis for the right side of the aircraft.

Step 3: Rivet the Bulkhead Side Channels to the Bulkhead per the call outs in Figure 2 on page 23-04 of the RV-12 plans. Rivet the Bulkhead Side Channels to the F-1203A bulkhead.

Step 4: Remove the tab from the notch in the Arm Rests that is for the Bulkhead Side Channels.

Step 5: Match-drill #30 forward tabs of the Arm Rests to the Bulkhead channels. Match-drill #30 the afttabs of the arm rest to the Fwd Bulkhead Sides. Deburr the bulkhead side channels and fwd bulkhead sides.

Builder's note: The rivet I am pointing at in the picture above had to be removed to fit the Arm Rest.

Step 6: Rivet a Fuselage Pin Latch to both the Arm Rests.

Step 7: Rivet the Arm Rests to the Bulkhead Side Channels. Rivet the arm rests to the Fwd Bulkhead Sides. Rivet the arm rests to the Arm Rest Brackets. See figure 3 on page 23-04 of Van's Aircraft plans.

Builder's note: The arm rest rubbed on the Bulkhead channel so I opened up the cut out to eliminate the possible wear points. See the pictures below.

Step 8: Insert the Canopy Decks and Longeron (should still be clecoed together as an assembly) into the fuselage skeleton. Cleco the canopy decks to the upper tab in the Bulkhead Side Channels.

This completes page 23-04. I am thoroughly enjoying building the RV-12. So long until next time.