Top Flite Sierra 40 Trainer Kit - Manual (Page 15)

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39. Round the outside of the "lock tabs" on the
die-cut 1/8" plywood front window (FW) as you did
on the back window. Fit the front window into place.
Glue with thin and medium CA. You may round the
corners of the fuselage to match the cross sections
as you go, or you may wait until the fuselage is done.
40. Sand the edges of the die-cut 1/8" plywood
fuel tank hatch till they are smooth. Test fit the
hatch in place. Trim the hatch or trim back the notch
in the front of the fuse side doublers until the hatch
fits well. Round the right and left edges of the hatch
to a radius like that shown in the firewall (F-1) cross
section.
41. Use CA to glue the die-cut 1 /8" plywood hatch
retainer tab to the inside of the hatch as shown in the
photo and on the fuse side view.
indicate the location of the No. 2 x 3/8" sheet metal
screws used to hold the hatch on. Check to make
sure these will direct the screws into the firewall.
Tape the hatch in place on the fuselage. Drill a 1/16"
hole through the punchmarks into the firewall. Re-
move the hatch and enlarge the holes in the hatch
only to 3/32". Screw the hatch down with the sheet
metal screws to confirm a good fit.
cut a gap in the forward fuse bottom sheeting under
No. 2 x 3/8 Sheet Metal Screw
42. The punch marks in the front of the hatch
43. If you are building a taildragger, you need to
the LGP to allowthe main landing gearto be installed
(as shown on the fuselage plans). The pre-cut 1/8"
x 9/32" x 3-3/4" plywood LG aligner strips are the
same ones used for the tricycle gear. Fill the gap in
the 1/8" balsa bottom sheeting at the tricycle gear
location with scrap 1/8" balsa.
44. Test fit the wire main landing gear into the
holes in the fuse bottom. In orderforthe landing gear
to lie flat on the bottom of the fuse, it is necessary to
remove a little material from the inside edge of the
5/32" holes to allow for the bends in the wire. Do this
with a round file or a knife.
45. Put the two bent wire main landing gear
pieces in place on the fuselage bottom. Slide the
pre-cut 1/8" x 9/32" x 3-3/4" plywood LG aligner strips
in place fore and aft of the main landing gear. Sand
the edges of the strips if necessary for a good fit.
Glue these strips in place with medium CA, being
careful not to glue in the landing gear wires.