09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
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b.
Cut out the profile saving the material outside of the profile. A hole can be
cut in the inside of the profile for access or it can be cut in half at the ends
of the profile and reconstituted with a piece of material. Set the fixture
aside.
c.
Place the support rib on the table with the flange up and use .050 thick
material to shim the wing tip support rib off the table.
d.
Weight the rib in place with sand bags or weights of some sort.
e.
Test fit the wingtip, support rib, and fixture set up before applying glue.
f.
Apply ABS or PVC glue on the wing tip and wing tip rib where the two will
mate. Place the wing tip over the support rib and slide the jig over the wing
tip compressing the wingtip to the support rib at the bottom.
g.
Place weights on top of the wing tip and let the glue cure.
INSTALLATION
11.
Position the tip on the wing and tape in place. Ensure a proper fit as this will be
the wing tips final location.
12.
Access through the inspection holes in the bottom wing skin to transfer drill the
#11 holes in the wing rib to the wing tip support rib. Cleco as you go.
13.
Remove the wing tip and install nut plates and nut plate supports (removed from
the bottom wing skin, cut apart and debur if needed) into the wing tip support rib.
14.
The wing tips are now ready to paint.
15.
Now is a good time to paint the wing, ailerons, and flaps. It is up to the builder to
decide when to paint the airplane. Some people will prefer to fly phase 1 before
painting. Others will want to paint now before final assembly of the wing. Others
may decide to stop at this point and finish the fuselage to ready to paint and paint
the wings, fuselage, and tails at the same time.
