Top Flite Sierra 40 Trainer Kit - Manual (Page 27)

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7. Sand the joints at the back of the fuselage
smooth. For a nice touch, sand the outer pushrod
tubes flush as shown in the photo.
8. Round the top edge of the shaped 1/4" balsa
9. Slide the elevator into position using its hinges
to support it (do not glue the hinges yet.) Slide the
rudder into its place. Mark the location where the
elevator joiner contacts the rudder. Cut and sand a
notch in the rudder large enough so the elevator
joiner wire and the rudder do not contact each other
when the surfaces are moved through their range of
motion.
DO STEPS 10-14 IF YOU ARE
BUILDING A TAILDRAGGER
NOTE: Refer to the tailwheel section on the
fuselage plans for details and drawings.
11. If you use a Great Planes L-7 tailwheel
wire, modify it slightly as shown on the fuselage
plan sheet.
Photo of completed tailwheel.
12. Drill into the rudder at the location shown
on the drawing with a 3/32" drill to allow the tail
wire to be inserted into it. Notch the LE of the
rudder to accept the nylon bearing. Harden the
bottom portion of the rudder around the tail wire
with thin CA before covering.
NOTE: Do these steps after the model is
covered with Monokote.
13. Place a small amount of petroleum jelly
at both ends of the nylon bearing to keep glue
out. Use a toothpick to push glue into the 3/32"
hole in the rudder. Insert the tail wire and wipe
away any excess glue.
dorsal fin. Use the seam on the top of the fuselage
to help you center the dorsal fin. Glue it on with thin
CA followed by a small fillet of medium CA.
10. You may make a tail wire from scratch
or purchase a Great Planes L-7 tail wire from
your hobby dealer.
14. Roughen the forward tab of the nylon
bearing and epoxy it into the fuselage during the
hinging process.