09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
75
16.
Rivet the
TOP
side using the appropriate rivets. Start at the AFT edge and work
your way forward one row at a time.
17.
Flip the flap over and check for twist before riveting. Start at the trailing edge and
work forward.
18.
Match drill and debur the spar using the holes in the skin and a #30 drill.
19.
Finish riveting the skin to the spar.
AILERON ASSEMBLY
1.
Remove the bend guides on the aileron skin as shown in
FIGURE 06-17.
Carefully use a pair of snips to cut them off close and finish with a file.
2.
Cleco and rivet the inspection tab rings to the aileron skin.
3.
Lay the aileron skin on a flat table.
4.
Lay out the ribs, hinges, and Push-Pull Tube Attach in the proper locations as
shown in
FIGURE 06-17
.
5.
Drill the aileron and flap hinges and hinge arms using a 5/16" drill to allow the
bronze flange bushings to be pressed in. Use a drill press if available. If a drill
press is not available, a hand drill may be used, but care must be taken to stay
square to the parts. If there is any play detectable between the bronze flange
bushing and the hole, the damaged hinge must be replaced. (This may have
been done in a previous step.)
6.
Double check the location and orientation of the ribs, hinges, and Push-Pull Tube
Attach and rivet the hinges and Push-Pull Attach to the appropriate ribs.
NOTE:
The hole at the top rear of the Push-Pull Tube Attach is used to
bolt the PPT to the rib and must be left open.
7.
Determine which side of the hinges to press in the bronze flange bushing. Refer
back to
FIGURE 06-16
for typical orientation. Use a bench vice or similar to
press in the bronze flange bushings.
Ream the bushings to #11, if a 3/16” bolt
will not insert into the bushings.
NOTE:
If any of the bronze flange bushings
don’t stay pressed into the
hole, set them aside and wait until assembling the aileron to the wing.
Once in place on the wing the bushings will be retained by the hinge bolts.
Green Loctite may be used to retain the bronze flange bushings in the
hinges.
IMPORTANT:
Check for play between the bronze flange bushings and the
hinges. If play is present, the hinges must be replaced.
8.
Use a sharpie to draw a line on the bottom flange of the ribs. The line should be
.2" from the edge of the flange.
