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RANS S-21 OUTBOUND
g)
Cut off the FWD side of the T-bone at the mark. Keep as square as
possible.
h)
Debur both cuts.
IMPORTANT: It is recommended to apply some corrosion protective
primer to the bare metal.
3.
Have one person lift at the wing tip and one person lift at the root.
4.
Walk the wing over to the fuselage and slide all the cables and wires through the
appropriate place on the fuselage. Then slide the 5/16" bolt at top of Station 3,
with washers, into the AFT Attach Fitting. Slip a washer over the bolt and start a
nut on the outboard side.
5.
Walk the tip forward slowly to slide the Forward Spar over the T-bone. Insert the
correct 3/8" bolt into the hole in the forward side of the Forward Spar to
temporarily hold it in place.
6.
With someone still holding the wing tip up (if using a step ladder, buffer with a
pillow and place on the tip rib), slide the lower attach fitting on the strut assembly
into the tangs on the fuselage. Lift the lift strut up and slide it into place between
the wing truss/strut attach doublers. Install the bolt with the nut finger tight. The
wing is now attached to the fuselage and no longer needs to be supported.
7.
All of the correct hardware should now be in place and can now be tightened.
This includes the front spar attach bolt, 5/16" bolt retaining the Aft Attach Fitting,
the bolts at the top and bottom of the strut, and the bolts on the strut truss fittings.
NOTE: For the 5/16" bolt on the AFT Attach Fitting, use a flathead screw
driver or similar on both sides of the nut to keep the nut from spinning
while tightening the bolt. Do not damage the AFT Attach Fitting while
tightening.
Tighten the 3/16" nut retaining the Aft Attach Fitting to the Rear Spar Assembly.
8.
NOTE: The use of a 3/16" plain nut can temporarily be used for this, as the nut
and bolt will need to be removed for drilling the other set of holes. Once all the
hardware is tightened, the second hole in the AFT Attach Fitting can be drilled to
#11. When drilling align drill 90 degrees to the spar fitting in both vertical and
horizontal axis.
Remove the 3/16" bolt and move the spar to the other 2 remaining holes.
9.
Temporarily bolt to the AFT Attach Fitting and drill #11 as done before. This will
allow easier adjustment when flight testing.
10.
Return the spar to the middle set of holes and bolt together with the hardware
called out in the parts manual.
11.
Refer to AILERON CABLE SYSTEM INSTALLATION in SECTION 10C.
Connect the Aileron Cable as shown.
12.
Refer to RIGGING for information about Bell Crank position and cable tension.
TEXT MANUAL
124
09/11/2018
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