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Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Empennage>Fit horizontal stabiliser
Tuesday, April 6, 2010
99 of 343
Fit the stabiliser
There are 2 types of horizontal stabilisers, as the installation differs, first determine which one
you have by locating the part identification sticker in the rear channel of the horizontal
stabiliser and note the part number. If the part number is 2A069A0D you need to follow this
set of instructions in total to the end. If the part number is 2A109A0D, it has integral internal
reinforcing and you only follow these instructions up to "Glass the tailcone".
Note:
It is important that you determine which horizontal stabiliser
you have, and then follow the fitting instructions that apply to that
horizontal stabiliser.
Prepare the stabiliser by taping up the inboard elevator hinges to prevent any resin getting into
the hinge pins. From the previous task you will have a marked centreline on the stabiliser: test
fit the stabiliser to the rear of the fuselage using the stabiliser centreline as a lateral location
guide against the fuselage centreline.
Push the stabiliser fully forward into the rear of the fuselage and check that each end of the
stabiliser is an equal distance back from the straightedge – use 2 tape measures as shown
circled above, one each side, and carefully move the stabiliser until the measurements are
exactly the same. Sight along the fuselage from the rear and confirm that the stabiliser is level
and lined up with the straightedge. The chord line of the stabiliser is to be angled down 3
degrees at the leading edge. Make any adjustments necessary.
When the stabiliser is aligned correctly, secure the stabiliser to the fuselage with self-tapping
screws, using 10 screws per side. These screws will be removed after the stabiliser has been
finally fitted. Run a pencil line around the stabiliser along the fuselage join.
Remove the stabiliser from the fuselage and remove the peel cloth from the rear of the
fuselage, then lightly sand all the surfaces to be joined – the pencil line on the stabiliser will
act as a guide for where to sand and where to coat with resin.