Table of Contents
Advertisement
Composite-ARF Extra 300L (2.12m/84")
techsupport@composite-arf.com
cloth, sandwiched between the outer skin and the foam.
This nylon hinge is 100% safe and durable. You will never
Centreline of hinge axis
have to worry about breaking it, or wearing it out. There is
no gap at all on the top wing surface, and there is a very
narrow slot in the bottom surface, where the aileron slides
under the main wing skin during down throw. This means
that the hinge axis line is on the top surface of the wing, not
Phenolic control horn
in the centre. This is NOT a disadvantage, if you program
in about 10% NEGATIVE aileron differential in your trans-
mitter. This means that the 'down' throw needs to be about 10% more than the up throw. Why?
Because the axis of the hinge is not at the centreline of the aileron, so it moves slightly in and
out when operated, and the aileron gets a little "bigger" in surface area when moving up, and
"smaller" when moving down.
The bottom slot needs some explanation, too. The cut line is exactly in the correct position so
that the aileron slides under the wing skin smoothly. If the cut was a few mm forward or back, it
would not work properly. So, make sure that the lip is not damaged, and that the aileron slides
under this lip perfectly. It will NOT lock at any time, if the lip is not damaged. If damage occurs
to the lip, you can cut off 2-3 mm, but you should NEVER need to cut off more than this.
The Fuselage:
The fuselage is also made in negative moulds, constructed using TAVS technology. The main
internal parts for the landing gear, composite engine firewall and exhaust tunnel, wing and stab
spar supports are glued in during manufacture, to ensure accurate location and reduce the
assembly time for you. There is no need to even check the incidences - you can be assured that
these are already set in the molds so that no adjustment is necessary.
The all-composite combined firewall and exhaust tunnel is
factory-installed and aligned for your convenience, and
contributes greatly to the strength of the airframe.
The pre-installed landing gear mount is strong and does-
n't need any extra reinforcement. You have an extremely
light weight fuselage, and the gear loads need to be led
into the structure gently. The new landing gear is a flexible
design, which works very much like shock absorbers. Do
not change or modify it, as the results would only be neg-
ative.
The Stabilisers:
The stab parts are also vacuum bagged sandwiched. The
rudder is hinged with a Ø 2mm steel wire, and the eleva-
tor control surfaces are factory-hinged with proprietary
hinge-points, 4 on each stab.
The rudder and elevator design allows for at least 45
degrees throw. The horizontal stabs are mounted with one
Ø 14mm carbon tube and one 6mm anti-rotation pin each.
Servo Screws:
Fix the all the servos into the milled plywood servo mounts
using the 2.9 Ø x13mm sheet metal screws provided in
5
Advertisement
Table of Contents
