Skyranger Nynja, Build Manual

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Nynja Build Manual 1.4d
c)
Lower edge of firewall sits under the floor plan as shown below don’t fix at this
stage.
Figure 189 position of lower edge of firewall
d) Fit scuttle moulding in position. It can be fixed to the firewall sides in the
position shown below. The photo shows a reference mark in the moulding
(illustrated by the arrow). Firewall top edge should be positioned 35mm below
this mark as shown.
Figure 190 position of firewall relative to scuttle moulding
e) Fix the firewall edges to the scuttle
– using 3mm countersunk rivets. Use just
one top and one bottom each side for now (t he rest will be fitted when the
exact position of the cowling screws are determined to ensure even spacing)
Drill a 3mm hole. Then take a 10mm drill bit and apply light pressure to
contersink the glassfibre until the rivet head sits flush..
f) Move now to the top edge of the firewall. This is fixed to the upper forward
edge of the scuttle. The outer edges will need bending downwards in a slight
curve to match the curve of the moulding. This can be done with some light
hand pressure. The aluminium will also need triming to match the edge of the
moulding. When happy with the fit fix using 3mm countersunk rivets. Use just
two for now 50mm either side of the dead centre. The rest will be fitted when