WATT AGE PT-19 CORNELL EP ARF, Instructions For Final Assembly

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To make it less messy during installation, apply masking tape to the
fuselage around the side of the mounting slot that the stabilizer will slide
into. Apply masking tape to the top and bottom of the corresponding
side of the stabilizer, too.
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Partially slide the stabilizer into the mounting slot.
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IMPORTANT
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Because the stabilizer has to slide into place through the fuselage, apply epoxy only to the stabilizer. This will
prevent the epoxy from spreading over the entire length of one half of the stabilizer when you slide it into place.
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Mix and apply a generous amount of 5 minute epoxy to ONLY the top and bottom gluing surfaces of the stabilizer.
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Push the stabilizer into place and realign it, double-checking all of your measurements once more before the epoxy sets up.
Quickly remove any excess epoxy and use pieces of masking tape to hold the stabilizer in place and aligned until the epoxy has
fully cured.
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IMPORTANT
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Be careful not to get any epoxy on the elevator joiner wire.
❑
After the epoxy has fully cured, remove the masking tape and look closely at the glue joint. If there are any gaps between the
stabilizer and the fuselage, fill them using 5 minute epoxy for added strength. Again, before the epoxy sets up, remove any excess
epoxy, using a paper towel and rubbing alcohol.
Continued On Next Page
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STEP 4: ALIGNING AND MOUNTING THE VERTICAL STABILIZER
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Remove the rudder from the vertical stabilizer and set it aside for now. Again, you can throw away the temporary plastic tabs in
the hinge slots.
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Push the vertical stabilizer into the mounting slot in the fuselage, then push it forward as far as possible. For the strongest joint
possible, the vertical stabilizer should be pushed down firmly against the top of the horizontal stabilizer.
❑
While holding the vertical stabilizer firmly in place, use a pencil to
draw a line on each side of the vertical stabilizer where it meets the top
of the fuselage.
❑
Remove the vertical stabilizer and use a modeling knife to carefully
cut away and remove the covering material from below the lines you
drew. Remove the covering material from the base of the stabilizer and
the sides of the rudder post, too.
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WARNING
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When cutting through the covering to remove it, cut
with only enough pressure to cut through only the covering itself.
Cutting down into the balsa structure could weaken the stabilizer and
cause it to fail during flight.