![background image](http://html1.mh-extra.com/html/jabiru/j450/j450_constructors-manual_3129834094.webp)
Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Empennage>Fit elevator
Tuesday, April 6, 2010
94 of 343
Pre-Paint>Fuselage>Empennage>Fit elevator
Objectives of this task:
To fit the elevator to the horizontal stabiliser, to fit the trim tabs to the elevator and the end
caps to the elevator and the horizontal stabiliser.
This task is performed on trestles prior to the fitting of the horizontal stabiliser to the fuselage.
The trim tabs and end caps may be fitted after the horizontal stabiliser and elevator have been
fitted to the fuselage, although it is usually easier to fit them as part of this task.
Materials required:
Card # J17 “
Elevator
” for the hinges
Epoxy resin and flock
Prepare the horizontal stabiliser and the elevator
Remove the peel cloth from the horizontal stabiliser and the elevator.
Mark the top and bottom of the horizontal stabiliser and the elevator: the horizontal stabiliser
is pre-marked and the drive arm of the elevator must face downwards.
Lay the horizontal stabiliser and the elevator on the work surface in the finished position with
a 1mm gap (use 2 equally spaced mixing sticks) between them. You will need to place a
wedge under the rear of the elevator. Make sure that that the ends are aligned and then
measure and mark a centreline on each surface. Lightly clamp or tape the horizontal stabiliser
and the elevator in position.
Mark and drill the elevator hinges
Mark out the hinge positions: mark the centreline of the tailplane and then use the drawing on
the next page and mark the correct hinge locations, which will be the same on each side.
Place the hinges in those locations with the flat side of each hinge facing upwards and the
hinge pin aligned in the centre of the gap between the horizontal stabiliser and the elevator.
Do
not
place the hinge flat side down – if you do then the holes will not line up correctly
when you come to fit the hinge.
Use a 3/32” drill to make a pilot hole opposite the pin side of each rivet hole: this is to allow
for the slight slope of the hinge at this point, then check that the hinge and hole positioning is
correct and then carefully expand to 3/16” holes.