09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
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5.
Fit the hinges to the trim tab/elevator aft spar. See
FIGURE 05-02
. The aft edge
of the hinge may need to be trimmed slightly to clear the trim tab spar and allow
the trim tab to move forward to align with the elevator trailing edges.
6.
With the trim tab and hinges in place, mark the hole locations from the aft
elevator spar to the hinges. Remove the hinges and carefully drill the required
holes. Cleco back in place.
7.
After all (3) hinges are clecoed to the elevator aft spar, flip the assembly over.
8.
Re-align the trim tab on the elevator. Mark, remove, and drill the holes from the
trim tab to the hinges.
9.
Cleco back in place and verify position. Remove the hinge pins and rivet the
hinges in place.
10.
Drill (2) #40 holes in the elevator aft spar at each hinge to retain the hinge pin as
shown in
FIGURE 05-02
. Safety wire the hinge pins in place upon final assembly
of the trim tab to the elevator.
ELEVATOR FINAL RIVETING
1.
Check the assembly for twist and fixture/weight as necessary.
2.
Rivet the top or bottom skin excluding the last row of rivets on the ends where
the tip skin will be attached.
3.
Flip the assembly over and check for twist before riveting the second side.
4.
Cleco and rivet the inner tip ribs to the ends of the assembly. Transfer drill and
rivet all holes.
5.
Slide the tip skin underneath the elevator skins and cleco in place. Transfer drill
the most aft hole from the trailing edge skin to the tip skin.
6.
Modify each Tip Skin per
FIGURE 05-03
. Make sure to only drill into the lower
surface.
7.
Slide the elevator balance ribs in place and cleco to the inner ribs with the
flanges pointing forward. Rivet in place.
8.
Cleco the outer tip rib in place.
9.
Finish riveting the rest of the elevator tips together.
