Top Flite TOPA0220 - Manual (Page 15)

❏ ❏
2. Use your bar sander to sand the edges flat
and straight where the parts join. Using one set of
parts, edge glue the upper fuselage side, front lower
fuselage side and rear lower fuselage side parts
together using either thin CA or aliphatic resin. Align
the front lower fuselage side even with the front of
the upper fuselage side. Align the rear lower
fuselage side even with the wing saddle cutout.
When the glue dries, use your bar sander with 150-
grit sandpaper to sand the assembled fuselage side
flat and smooth.
❏ ❏ 3. Edge glue the three parts for the belly pan
side together and sand the completed assembly flat
and smooth.
❏
4. Return to step 2 and make a second set
of parts.
❏ 5. Position one of the sides on your building board
as shown in the photo. Position the die-cut 1/8"
[3.2mm] ply fuselage side doubler on the fuselage
side. Align the doubler with the wing saddle and
trace the outline of the doubler onto the fuselage
side with a ball point pen.
Note: It is important that the doubler be accurately
positioned on the fuselage side. Check that the
fuselage side extends 1/4" [6.4mm] beyond the
doubler at the front end of the assembly. Also check
that the fuselage side extends 3/32" [2.4mm]
beyond the doubler along the edge of the assembly
as shown in the photo.
❏ 6. Glue the doubler to the fuselage side using
aliphatic resin glue or epoxy, aligning it accurately in
position. Do not use CA as it will not allow you to
reposition the parts. Use weights to hold the parts
together until the glue dries, making sure the parts
remain accurately positioned.
❏
7. When the glue has dried, remove the side from
the building board. Label this side “L”.
❏ 8. Glue the belly pan doubler to the belly pan
side. Align the doubler with the wing saddle and with
the ends. The belly pan side should extend 1/4"
[6.4mm] beyond the doubler along the straight edge.
Label this assembly “L”.
❏
9. Locate the remaining fuselage side assembly and
fuselage side doubler. Note that the front edge of these
parts have an embossed cut line that is about 3/32"
[2.4mm] from the edge. Use a straight edge and your
knife with a sharp #11 blade to cut and remove the
material along the embossed line. This will establish the
proper right thrust for the engine.
❏ 10. Position this side on your building board as
shown in the photo. BE SURE IT IS POSITIONED
AS SHOWN (unless you want two left sides)!
Position the die-cut 1/8" [3.2mm] ply fuselage side
doubler on the fuselage side. Align the doubler as
you did in steps 5 and 6 and glue it in position with
aliphatic resin or epoxy. Use weights to hold the
parts together until the glue dries, making sure the
parts remain accurately positioned.
Note: It is important that the doubler be accurately
positioned on the fuselage side. Check that the
fuselage side extends 1/4" [6.4mm] beyond the
doubler at the front end of the assembly. Also check
that the fuselage side extends 3/32" [2.4mm]
beyond the doubler along the edge of the assembly
as shown in the photo.
❏ 11. When the glue has dried, remove the side from
the building board. Label this side “R”.
❏ 12. Glue the belly pan doubler to the belly pan
side. Align the doubler with the wing saddle and with
the ends. The belly pan side should extend 1/4"
[6.4mm] beyond the doubler along the straight edge.
Label this assembly “R”.
Caution: Be sure you are building a right side, not
another left.
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