Top Flite TOPA0305 Part 2 - Manual (Page 10)

ST4. Insert a T-pin in the center of the top of the
firewall.
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ST5. Tie a loop on one end of a 54" piece of
string and connect it to the T-pin in the top of the
firewall. Put a piece of masking tape with an arrow
on it near the other end of the string. Slide the tape
along the string and align the arrow with the corner
of one of the stab halves. Swing the tape over to
the other corner on the other side of the stab. Shift
the stab and slide the tape along the string until the
arrow aligns with both corners of the stab.
ST6. Mark the LE of the stab where it aligns with
former F1OA.
ALIGN THE STAB HORIZONTALLY
STl . Place two clothespins on the top of former
F4 and rest a straightedge on the top of the fuse
sides, propped up against the clothespins. See the
following photo.
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ST2. Stand behind the fuselage and view the
stab and the straightedge to see if they align. If
necessary, carefully sand one side of the stab
saddle so the stab will align with the straightedge.
ST3. Move the rudder pushrod wire back and
forth to make sure the clevis and horn do not
interfere with the. fuse sides and the rudder torque
rod can move freely.
If necessary, adjust the
pushrod wire or the clearance slot in the stab
saddle. There must not be any possibility of
binding here.
ST4. Use 30-minute epoxy to glue the stab to
the saddle. Place the stab on the saddle so the
marks you made earlier align. Before the epoxy
cures, confirm alignment once more using the pin
and string technique. Do not proceed until the
epoxy has fully cured.
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MOUNT THE FIN
STI. Trim the sheeting on the bottom of the fin
until it matches the top of the stab. Make sure you
trim both sides evenly so the fin sits vertical. Trim
the fin sheeting in front of former F1OA so it is even
with fin rib R1 as shown in the photo. R1 of the fin
should rest on former F10 and the rear of the stab.
S T 2 . With the fin on the stab, place the
basswood fin post on the front of F1 OA and slide it
up into the fin until it hits the LE. Hold the fin post in
position and remove the fin. Mark the location of
the fin post. Apply 30-minute epoxy to the fin post
and FlOA. Clamp the fin post to FlOA aligned with
the marks you made.
Be certain the fin post is
vertical and is centered on former FlOA. The fin
post aligns the front of the fin with the fuselage.