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Composite-ARF SuperXtra 330L (3.1m span)
techsupport@composite-arf.com
Attention !
This IMAC-Aircraft is a high-end product and can create an enormous risk for both pilot and
spectators, if not handled with care, and used according to the instructions. Make sure that you
operate your Extra according to the AMA rules, or those laws and regulations governing the
model flying in the country of use.
The engine, servos and control surfaces have to be attached properly. Please use only the
recommended engines, servos, propellers, and the accessories supplied in the kit.
Make sure that the 'Centre of Gravity' is located in the recommended place. Use the nose heavy
end of the CG range for your first flights, before you start moving the CG back to a more critical
position for 3D-manoeuvres. If you find that you need to relocate your batteries or even add
weight in the aircraft to move the CG to the recommended position, please do so and don't try
to save weight or hassle. A tail heavy plane, in a first flight, can be an enormous danger for you
and all spectators. Fix any weights, and heavy items like batteries, very securely to the plane.
Make sure that the plane is secured properly
when you start up the engine. Have at least 2
NO !!!
helpers hold your plane from the tail end or
from behind the wing tips before you start the
engine. Make sure that all spectators are
behind, or far in front, of the aircraft when
NO
NO
running up the engine.
Make sure that you range check your R/C
system thoroughly before the first flight. It is
absolutely necessary to range check your
Secure the plane
complete R/C installation first WITHOUT the
DANGER ZONES
before starting the engine.
engine running. Leave the transmitter antenna
retracted, and check the distance you can walk
before 'fail-safe' occurs. Then start up the engine, run it at about half throttle and repeat this
range check with the engine running. Make sure that there is no range reduction before 'fail-safe'
occurs. Only then make the 1st flight. If you feel that the range with engine running is less then
with the engine off, please contact the radio supplier and the engine manufacturer and DON'T
FLY at that time.
Check for vibrations through the whole throttle range. The engine should run smoothly with no
unusual vibration. If you think that there are any excessive vibrations at any engine rpm's, DON'T
FLY at this time and check your engine, spinner and propeller for proper balancing. The light-
weight sandwich composite parts don't like too much vibration and they can suffer damage. The
low mass of all the parts results in a low physical inertia, so that any excess vibrations can affect
the servos and linkages.
Make sure that your main spar tube is not damaged. Check that the front and rear anti-rotation
pins for the wings and horizontal stabiliser are located correctly in their holes, and are not loose.
Check that the 4 plastic wing retaining nuts are tight, that the M3 bolts retaining the horizontal
stablisers on to the aluminium tube are installed and tight, and that the hinge wires for the rud-
der and elevators cannot come out.
If you carefully checked all the points above and followed our advice exactly, you will have a safe
and successful first flight - and many hours of pleasure with your Composite-ARF Extra 330L.
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