Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Prepare the fuselage
Tuesday, April 6, 2010
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Fuel line conduit, rear bulkhead:
The fuel lines will be routed from the upper cabin conduits, though a sheath that will connect
to the rear bulkhead conduits and down to the fuel header tank. This step just involves fitting
the conduits to the rear bulkhead.
Mark a line on the rear bulkhead 350mm up from the top of the rear deck and another line
50mm in from the inside of each side of the fuselage as shown below:
Drill a pilot hole at each point and then expand the holes in stages to 32mm. Elongate each
hole with a half-round file so that the plastic conduit can be fitted at an approximate angle of
45 degrees as shown above. Leave enough length in front of the bulkhead to fit the sheath
over the conduit and fix it in place with lock wire later in the build.
Fit each plastic conduit in place with 5 minute Araldite mixed with at little flock, seal around
and wipe off any excess then leave to cure.
Remove any rough edges, paying particular attention to the inside of the conduit where the
fuel lines will pass though – it is
very
important that the fuel lines will not be able to rub
against any rough edges.
Cabin air vents
Cut a 60 x 44mm hole on each side of the
lower forward fuselage.
The bottom of the hole should be 100mm
above the bottom of the door opening and the
fore and aft location should be centred on a
vertical line drawn down from the rear of the
cowl joggle, all as shown at right:
The air vent door surround can be flocked
into place inside the fuselage with the hinge
at the rear of each hole.
60mm
44mm
100mm