![background image](http://html1.mh-extra.com/html/jabiru/j450/j450_constructors-manual_3129834145.webp)
Jabiru J450 Constructors Manual
Pre-Paint>Fuselage>Interior>Fit rear seat
Tuesday, April 6, 2010
145 of 343
Next day drill 4 x ½” holes just behind the front lip of the seat bottom, 2 on each side, and fill
the entire cavity with expandable foam, using about half of the can per side and aiming the
spray generally backwards. The foam will expand to several times it‟s original volume so take
it slow and easy – read the directions before you start using the can.
Any excess will flow back out of the holes: trim it off once the foam has finished expanding
and glass over each hole later. It is not necessary to completely fill the cavity, although you
may if you wish, so long as the main seating area has foam clearly visible under the rear ¾ of
it. Clean away any excess foam and leave to set, preferably for at least a few hours.
Fit the seat back
Test fit the seat back and sand or cut to fit as required. Make sure that each side at the top is
an equal distance from the rear bulkhead – mark the fuselage as a reference: see the photo on
the previous page. It may be necessary to shape the outside tops of the seat back slightly in
order to blend smoothly into the rib that runs along the bottom of the rear windows.
Using the same technique that you used for the seat bottom, screw the seat back into place
with 6G self-tapping screws. Remove the seat back and sand around the area to be bonded.
Mix a batch of resin and coat the surfaces to be joined, add some flock and flock the seat back
into place, securing with the 6G screws and leave overnight to cure.
Next day remove the screws, heating them first if necessary.
Remove the red peel cloth and sand around the edges of the join between the seat back and
the fuselage and sand around the join. Mix a batch of resin and coat the surface and then brush
on 2 layers of 2” wide glass fibre tape right around the join. Leave overnight to cure.
This completes the
Pre-Paint>Fuselage>Interior>Fit rear seat
task.
Seat bottom
Rear step
Seat back