rearward-retracting nosegear
you will have no problems set-
ting the correct Centre of Grav-
ity as you can fit the batteries
right in the nose. If you chose
to fit a more scale forward-re-
tracting nosegear you may
need to be a little more careful
as it fills the useful space in the
nose - but you still should not
have to add any additional
weight to balance the plane
correctly.
Horizontal Stabilisers
The anhedral stabilisers are laminated from a fibre-
glass and foam sandwich (2mm thick), cured under
vacuum, and painted in the molds in a single colour.
The stabs should be permanently glued onto the pair
of Ø 7mm composite rods, which are supported in a
pivoting fibreglass horn/bellcrank, and are controlled
by a single servo mounted centrally in the fuselage.
If installed as described here this simple system is
extremely strong and will certainly handle any nor-
mal flying loads that can be placed on it by turbines
in the recommended thrust range.
Each stab has pair of I.D. 7mm fibreglass tubes in-
stalled in it during manufacture, to take the Ø 7 x
180mm rods. These fit into the factory-assembled
Yoke, and the rear rod pivots in a pair of ball-bear-
ings that fit into moulded pockets in the side of the
fuselage. These items are pre-assembled for you
before shipping so that you can easily understand
the assembly. Note that the rear rod may have been
sanded at the factory, to give an easy sliding fit in
the bearings.
Just as with the flap linkages, it is wise to ‘dummy’
assemble the complete stab system, including the
servo & linkage, to check travels and proper opera-
tion before gluing anything permanently in place.
Fox Composites Co., Ltd.
15
(above) Servo fits in ply mount with out-
put shaft towards front, and clevise as
close to centre of arm as possible. M3
clevises and linkage shown.
(below) Neutral elevator position is with
the top of the stab trailing edges flush
with top of rear fuselage, as shown.
(above) General assembly view of the all-flying stabilisers,
servo & linkage. Yoke is painted red here for clarity only !
