Top Flite TOPA0150 - Manual (Page 16)

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4. Add the die-cut balsa rib V-6 and the top of the
fin TE spar cut from leftover 1/8" balsa. Use a
builder’s square to make sure V-6 is perpendicular to
the building board.
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5. Sand left side of the fin TE spar even with the
ribs. Use the pattern provided on the plan to make
two
fin skins from the 1/16" sheeting leftover from
the stab. Glue one of the fin skins to the left side of
the fin.
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6. After the glue has hardened, remove the fin
from the building board. Trim the jig tabs from the
right side of the fin ribs. Cut two fin hinge blocks
from the same 1/4" x 3/8" stick used for the stab and
elevator hinge blocks, then glue the hinge blocks to
the fin TE spar where shown.
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7. Sheet the right side of the fin. Sand the fin
sheeting even with the fin tip and TE spar, then sand
the fin LE even with the sheeting.
Do not round the
LE of the fin until instructed to do so.
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8. Glue the 11/16" x 1-3/16" x 3-3/8" balsa fin tip
to the fin. Shape the tip to match the fin, but do not
round until instructed to do so (after the rudder is
completed).
This is all that can be done on the fin for now, until
the top of the fuse is built. The rudder is built directly
onto the fin when the fuse is near completion. So
now, it’s time to build the fuse!
BUILD THE FUSE
Frame the fuse top
Note: The formers that have part names stamped
on them are stamped with only the necessary
portion of their names (some formers are too
small to have a name stamped on them). For
example, former F-2A is stamped “2A”. As noted
earlier in the manual, refer to the die drawing
pages to identify the parts correctly.
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1. Cut the top view of the fuse plan from the fuse
plan sheet. Place it over your building board covered
with Great Planes Plan Protector or wax paper.
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2. Cut the forward main stringers from two 3/16"
x 3/8" x 48" grooved balsa sticks. Note the bevel that
must be cut on the aft end of the stringers at F-11.
It’s okay to cut the stringers an inch or so longer than
required so the excess extends forward of F-1. Pin
both stringers to the plan.
Refer to this photo for the next two steps.
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3. Cut the aft main stringers from the remaining
3/16" x 3/8" x 48" grooved balsa stick. Be certain to cut
-16-