BUCKER BU 131 JUNGMANN
Item code: BH160
4)
Check the
fit of the horizontal stabilizer in its slot.
Then put the horizontal into the fuselage.
Make sure the horizontal stabilizer is square and
centered to the fuselage by taking measurements, but
don't glue anything yet.
Check to mark sure the wing and stabilizer are
paralell. If they are not, lightly sand the opening in
the fuselage for the stabilizer until the stabilizer is
paralell to the wing, but don't glue anything yet.
5)
With the horizontal stabilizer correctly aligned, mark
the shape of the fuselage on the top and the
bottom of the tail plane using a water soluble / non
permanent felt-tip pen.
6)
Remove the stabilizer. Using a modeling knife and
ruler
CAREFULLY
cut 1mm
inside
the marked lines.
Remove the covering from the top and the bottom of the
tail plane.
Make sure you only cut with enough pressure to only
cut through the film and not the wood. Cutting into the
balsa structure may weaken it. This could lead to
possible failure during flight.
When you are sure that everything is aligned correctly,
mix up a generous amount of 30 minute epoxy. Apply a
thin layer to the top and bottom of the stabilizer
mounting area and to the stabilizer mounting platform
sides in the fuselage. Slide the stabilizer in place and
re-align. Double check all of your measurements one
more time before the epoxy cures. Remove any excess
epoxy using a paper towel and rubbing alcohol and hold
the stabilizer in place with T-pins or masking tape.
After the epoxy has fully cured, remove the masking
tape or T-pins used to hold the stabilizer in place and
carefully inspect the glue joints. Use more epoxy to fill in
any gaps that may exits that were not filled previously
and clean up the excess using a paper towel and
rubbing alcohol.
Mark line
Top side and bottom side.
Remove the covering.
A+B Epoxy glue
C/A glue
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