Vans Aircraft RV-12 Build, Section 21: Mid Fuse Bibs & Bottom Skins (part 4)

Reference: page 21-09; 0.5 hours

Today was a short workday for the RV-12 airplane. Working on the air compressor is cutting into the time spent on the RV-12.

Step 2: Rivet one of the f-1204-H Bulkhead Caps to the forward side of the F-1204B-L Aft Bulkhead Side and forward side of the using the rivets called out in Figure 2 of the RV-12 plans on page 21-09. DO NOT rivet the three holes in the top flange of the bulkhead cap which are common to the aft bulkhead side, or the single hole in the bottom forward flange indicated in the figure.



Step 3: Slide the BUSHING AL.197X .313. X 1.954 Bushing into the F-1204M Roller, than install them between the F-1204B-L Aft Bulkhead Side and the F-1204CL-L Fwd Bulkhead Side Assembly using the hardware called out in Figure 2 by Van's Aircraft. The bolt is secured with the nutplate attached to the back of the F-1204A Center Section Bulkhead.





Step 4: Rivet the remaining F-1204H Bulkhead Cap to the forward side of both the F-1204B-R Aft Bulkhead Side and the F-1204CL-R Fwd Bulkhead Side Assembly using the rivets called out in figure 3. DO NOT rivet the three holes in the top flange of the bulkhead cap which are common to the aft bulkhead side, or the single hole in the bottom forward flange indicated in the figure.



Step 5: Slide the BUSHING AL.197X .313. X 1.954 Bushing into the F-1204M Roller, than install them between the F-1204B-R Aft Bulkhead Side and the F-1204CL-R Fwd Bulkhead Side Assembly using the hardware called out in Figure 2 by Van's Aircraft. The bolt is secured with the nutplate attached to the back of the F-1204A Center Section Bulkhead. NOTE: The roller on the right side of the aircraft is oriented in the opposite direction of the roller on the left side



This completes page 21-09 of the RV12's plans. Happy landings!

Vans Aircraft RV-12 Build, Section 21: Mid Fuse Bibs & Bottom Skins (part 6)

I was able to complete a lot of assembly on the RV-12 aircraft today, until the air-compressor blow apart. In the picture below you can see some of the piston pieces (yes it is an oil-less compressor with somewhere between 700 and 1000 hour of run time (one Cessna restoration, the RV10 and the RV-12 project to date.) These things make an incredible racket when they decide to go south!



Reference: page 21-07, 21-08, 21-09; 6.0 hours

Step 1: Using the locating holes drilled on Page 21-6 Step 7, cleco the F-1237E Seatback Hinges to the F-1225-L & -L Seat floors as show in Figure 1 of the RV-12 plans. Center the lines drawn on Page 21-06 Step8 on the holes in the seat floors, then match-drill #30 the holes into the seatback hinges, Remove and deburr the holes.



Step 2: Except for the holes that will be used to attach the seat floor ribs, rivet the F-1237E Seatback hinges to the Seat Floors. Note: Rivets holes that are left open until later in picture below.



Step 3: In both Seat Floors, dimple the four holes in the aft flanges and the holes alond the forward and inboard edges as indicated in Figure 1 on page 21-07.



Step 4: Dimple the six nutplates, shown in Figure1, along the forward edge of the Seatfloors, then rivet them to the seat floors.



Step 5: Separate the F-1253 Seat Floor Support by removing the hatched areas shown in Figure 2 of the RV-12 plans.



Step 6: Rivet the F-1225-L Seat Floor to the remaining Left Seat Rib Assembly(except for the hole indicated) and the Flaperon Mixer Bracket/Seat Rib Assembly using the rivets called out by Van's Aircraft.



Step 7: Dimple the nutplates shown in Figure 3, then rivet them to the Flaperon Mixer Bracket/Seat Rib assembly and to the F-1225-L Seat Floor using the rivets called out. Temporarily install an 8-32 screw in the MS21051-L08 nutplate to prevent misalignment while riveting.





Step 8: Using the rivets called out in Figure 3 on page 21-07, rivet the F-1253-L Seat Floor Support to the bottom of the F-1225-L Seat Floor. Do not install a rivet in the aft most and forward most hole as indicated in the plans.



Step 9: install the smap bushings called ou tin Figure 3 of the plans.



This completes all of the steps on page 21-07.

Reference: page 21-07:

Step 1: rivet the F-1225-R Seat Floor to the remaining Right Seat Assembly (except the hole indicated) and the Pulley Bracket/Seat Rib Assembly using the rivets called out in Figure 1 on page 21-08 of the RV-12 plans.



Step 2: Dimple the nutplates shown in figure 1, then rivet them to the Pulley Bracket/Seat rib Assembly and the the F-1225-R Seat Floor using the rivets called out. Again, temporarily install an 8-32 screw in the MS21051-L08 nutplate to prevent misalignment while riveting.



Step 3: Using the rivets called out in Figure 1, rivet the F1235-R Seat Floor Support to the bottom of the F-1225-R Seat Floor as shown. Do not install a rivet in the aft most and forward most hole.



Step 4: Install the snap bushings called out in Figure 1.



Step 5: Rivet the Left and Right Seat Floor Assemblies to the F-1204A Center Section Bulkhead using the rivets called out in Figure 2 of Vans Aircraft's plans 21-08.











This completes page 21-08.

Reference page 21-09.

Step 1 Rivet the F-1204CL-L &-R Fwd bulkhead Side Assemblies to the Left and Right Seat Floor Assemblis using the rivets call out in Figure 1 of the plans.



That's it for today's work. I am going to have to figure out what to do with the compressor.