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Composite-ARF SuperXtra 330L (3.1m span)
hole for the axle on the inner face) and
insert the axle bolt through this hole.
The order of fitting the wheelcollar, wash-
ers and wheel onto the axle, to centre
the wheel in the wheelpant, is shown in
the diagram here - but of course may
vary slightly depending on the size and
type of wheel used.
You can use any 4.5" - 5" main wheels.
Kavan wheels are very lightweight, but
not very durable on asphalt runways, and
Dubro wheels are a little heavier but
much more solid.
Any standard tailwheel assembly from a
good hobby store is suitable for your
Extra. The tail wheel setup shown in these photos is an
optional part available from C-ARF, and is mounted with 4
sheet metal screws and 2 plastic 'U' brackets under the
fuselage, screwed into the plywood reinforcement installed
in the fuselage at the factory.
You do not need to make the tailwheel steerable, a simple
castoring action is fine. However, for asphalt runways you
may prefer to connect it to the rudder horn with 2 springs as
shown. It's easy to make these by winding some 0.8mm or
1.0mm 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 and the rudder horn.
Remember - keep it lightweight at the tail end!
techsupport@composite-arf.com
milled plywood
M6 nut
washer
M6 locknut
washer
6mm wheel
collar
WHEELPANT X-Section
(above/below) Optional tailwheel
assembly from Composite-ARF.
14
Carbonfibre landing
gear leg
120-125mm
Ø wheel
wheelpant
M6 bolthead
washer
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