Building Instruction - Carf-Models EXTRA 330SC Building Instruction

EXTRA 330SC 2.3m

Building Instruction

Landing Gear
It is a benefit to install the landing gear legs early
on, as these will make the fuselage more stable
and keep the lower surface clear of your work
bench.
The Carbon fibre legs are not handed. Fixing nuts
are already installed in the fuselage and the
corresponding fixing holes are marked by recesses
moulded into the landing gear legs. Drill these
with a 6.5mm drill, care should be taken with the
carbon fibre material removed by the drilling
process.
It is worth completing the Wheel and wheel spat
mounting work, even though leaving them off will
reduce the chance of damage during fuselage
handling.
The wheel axles provided are M6 x 60mm Allen
Bolts, which are fitted from the outside of the
wheel, various washers are provided to allow
central spacing in the wheel spat. It is much easier
to install the axles if you make a 10mm hole in the
outer spat wall, allowing the axle to pass through.
We recommend the use of Dubro 400TL 4"
Treaded Lightweight Wheels or Sullivan Skylite 4
inch wheels, these will both require the centre
hole opening to 6mm on a drill press.
Drill the lower leg 6mm, ensuring that the hole is
drilled square to the lower section of the leg.
Before drilling the wheel spat, glue a 3mm
plywood spacer-plate inside the wheel spat on the
raised area created where the leg fits. This adds
rigidity and aids correct centring of the wheel in
the spat. Using the leg as a jig, hold the spat in
position and drill through the wheel spat and
spacer plate with a 6mm drill.
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