Agusta A119 Koala
13
Slide the tail rotor assembly onto the tail boom again, working from the rear underside, and re-
place it in its original position. Trim the opening in the fuselage shell as required to ensure that
none of the moving parts fouls the bodywork.
Connect the tail rotor bellcrank to the pushrod, then replace the crank in its original position.
Check that the tail rotor works correctly, with no tendency to foul or jam at any point.
Mark the outline of the rectangular opening in the base plate on the fuselage shell, and cut it out
so that the flight battery can be fitted from the underside and slid into the nose of the fuselage. If
you wish, you can just leave this access hatch open; alternatively you can cut a rectangular
hatch cover from scrap flat plastic sheet left over from the fuselage shells. The cover can be at-
tached using a tape hinge, and held closed with another strip of tape.
Horizontal stabilisers
Cut out the cambered bottom shells for the horizontal stabilisers along the marked lines. Cut
pieces of plastic tube to length and glue them in the two shells, 8 mm from the leading edge and
parallel to it. Sand the edges of the open top surface of the stabiliser panels flat by rubbing them
on a sheet of abrasive paper; it does not matter if you sand a little off the top of the plastic tubes
at the same time.
The prepared stabiliser shells can now be glued to the flat stabiliser top sections (scrap plastic).
Allow the glue to set hard, then cut out the stabiliser panels and sand the glued edges smooth
all round. Working from the angled root face of the panels, drill a 2 mm Ø hole into the plastic
tube, and check that the remainder of the 2 mm carbon fibre rod can be slid into the two tubes.
