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CARF-Models Extra 330SC (3.1m)
in the outside surface of the wheelpant. Depending on the
thickness of your chosen wheel, you will need 1 or 2 of the
M6 washers either side of the wheel to centre it - and also an
M6 wheel collar (supplied) on both sides as well, between
the washers and the 'T' nut. Tighten the axle bolt securely
into the T-nut, and then secure the assembled wheelpant to
the carbon leg using an M6 washer and M6 locknut as
shown. A drop of loctite on the M6 lock-nut is good
insurance.
Leg Cuffs
The Extra 330SC has fairings at the top of each LG leg
where they enter the fuselage, and these are supplied in the
kit as lightweight fibreglass mouldings. We suggest that they
are glued in place onto the LG with silicone adhesive (bath
sealant), so they can easily be removed if necessary. Note
that there is a 'right' and a 'left' leg cuff, but which is which
will be very obvious when you trial fit them to the fuselage!
Mill the slot in each cuff for the carbon legs. Sand border of
the cuffs smooth, and glue to LG with a little clear silicone
adhesive.
Tailwheel
The tail wheel setup shown on these photos is an optional
part available from C-ARF, and is mounted with two M4x20
mm allen bolts under the fuselage, screwed into two M4 T-
nuts in the factory installed plywood reinforcement. You don't
need to make the tailwheel steerable if flying from grass
surfaces, a simple castoring action is fine. However, for hard
runways you may prefer to connect it either to the rudder
horn with 2 springs as shown, or even better to the rudder
pull-pull cables. It's easy to make the springs by winding
some 0.8mm Ø piano wire around a 5mm drill bit, turned
slowly in a battery-drill, with a small hook in each end to
connect to the tailwheel steering arms. Remember - keep it
lightweight at the tail end!
Cowling
Attaching the 2 piece cowling is quite easy, as it is already
cut and trimmed at the factory, and should need almost no
adjustment for a perfect fit. If necessary you can sand the
inside back edges of both halves of the cowling to have a
perfect flush fit with the fuselage.
The top and bottom cowling halves are joined together with
eight M3 x 12mm allen bolts, don't forget the outside edges
of the circular cutout at the front. The back edge of the lower
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Our carbon tailwheel installed
under the fuselage with two
M4x20mm Screws.
The leg cuffs glued in place
onto the LG with silicone.
The
cowl
firmly
position
The spinner fits perfectly to the
front of the cowling
taped
in
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