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RANS S-21 OUTBOUND
1.
Set the fuselage right side up on the 12x4 build table. Place a long piece of angle
(48") over the top of station 11. FIGURE 07-06A This is used as a sight gauge to
make sure the fuselage is square and the horizontal and vertical surfaces are
level and square with the cage. Sight for proper alignment by lining up the angle
with the top fuselage cage. Check repeatedly during the process of transfer
drilling the longerons.
2.
Install the rudder cables and the wires for the trim tab servo before installing the
top skins. Any other lighting or remote magnetometer etc wires can also be run at
this time.
a) Run the wires for the elevator trim tab servo down one of the lower longerons.
b) The wire will exit S-11 and run up into the front of the elevator once the
horizontal and elevator are installed. Leave about 12 inches out the back side
of S-11 and the rest can be rolled up close to S-3 and run, wired, and trimmed
at a later time.
c) Use RTV Silicone or hot glue to adhere the wire to the longeron every 12
inches or so.
d) To keep the rudder cables from being damaged coil and tape them to the
cage at station 3 pr 4.
3.
Fabricate and install the window support angle as shown in FIGURE 07-07. Rivet
the aft side of the support to the longeron but do NOT drill or rivet the support to
the top attach gusset on the cage.
4.
Set the 3 top stringers in place on the bulkheads. They will be bent to match the
top front skin at a later point.
5.
Cut and trim the aft section of the stringer at the S-8 bulkhead.
6.
Remove any clecos that may be in the middle longerons.
7.
Use an edge forming tool to form the edge on the top skin that overlaps the
longerons. Form the top edge of one of the skins (whichever will be on top).
8.
Place the top skin in place on the bulkheads and begin to cleco in place at the
top.
9.
Work your way back and forth down to the side longeron. Cleco to the stringers
as well.
CAUTION: Care must be taken to avoid kinks in the skin.
10.
Repeat to cleco the other tailcone top skin in place.
11.
The top seam will not be riveted until fitting of the skins between S-3 and S-4.
TEXT MANUAL
TAILCONE TOP SKINS
85
09/11/2018
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