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ing. Apply the strip of clear self-adhesive plastic film 7 to
the underside of the fuselage to act as a landing skid;
this provides adequate protection to the foam from land-
ing damage. You can encourage the film to follow the
curvature of the front of the fuselage by cutting a radiat-
ing pattern of slits in that area.
13. Preparing for the first flight
For the first flight wait for a day with as little breeze as
possible. The early evening is often a good time.
Be sure to carry out a range check before the first
flight.
Just before the flight, charge up the transmitter battery
and the flight pack using the correct procedure. Ensure
that "your" channel is not already in use before you switch
on the transmitter.
Ask your assistant to walk away from the model, holding
the transmitter. The aerial should be fitted but completely
collapsed.
Your assistant should operate one of the functions con-
stantly while you watch the servos. The non-controlled
servo should stay motionless up to a range of about 80
m, and the controlled one should follow the stick move-
ments smoothly and without any delay. Please note that
this check can only give reliable results if the radio band
is clear of interference, and if no other radio control trans-
mitters are in use - even on other channels. If the range
check is successful, repeat it with the motor running.
There should be only a very slight reduction in effective
radio range with the motor turning.
If you are not sure about anything, please don't risk a
flight. Send the whole system (including battery, switch
harness and servos) to the service department of your
RC system manufacturer and ask them to check it.
.
The first flight ..
Don't try an unpowered test-glide with this model!
The model is designed for hand-launching, and should
always be launched exactly into any wind.
If you are a beginner to model flying we strongly rec-
ommend that you ask an experienced model pilot to
help you for the first few flights.
Allow the model to climb to a safe height, then adjust the
trim sliders on the transmitter until the model flies in a
perfectly straight line "hands off".
While the model is still at a safe altitude, switch off the
motor and try out the model's controls on the glide. Carry
out a "dry run" landing approach at a safe height, so that
you are prepared for the real landing when the battery
runs flat.
Don't try any tight turns at first, and especially not on the
landing approach at low altitude. Leave the risky manoeu-
vres until you are confident of the model's handling. It is
always better to land safely at some distance from you,
than to force the model back to your feet and risk a heavy
landing.
14. If the landing is not quite perfect ...
If the model suffers a really hard landing it may well be
damaged, and parts may even break off entirely. Don't
panic: five-minute epoxy can be used on the field to get
you back in the air quickly.
Apply a little 5-minute epoxy to the broken surfaces, push
the parts together and hold for about five minutes. Leave
the glue to cure for a further 10 minutes - and you're ready
to fly again.
Don't use too much epoxy; excess glue doesn't make the
joint stronger, and it usually looks awful.
If you have time to repair the joint at your leisure, it is
better to use white glue to re-join the broken parts. White
glue makes an almost invisible joint, but you must leave
the glue overnight to harden, and this means jigging or
packing the model up to prevent the parts slipping out of
alignment.
15. Safety
Safety is the First Commandment when flying any model
aircraft. Third party insurance should be considered a
basic essential. If you join a model club suitable cover
will usually be available through the organisation. It is
your personal responsibility to ensure that your insurance
is adequate (i.e. that it covers powered model aircraft).
Make it your job to keep your models and your radio con-
trol system in perfect order at all times. Check the correct
charging procedure for the NC batteries used in your RC
set. Make use of all sensible safety systems and precau-
tions which are advised for your system. An excellent
source of practical accessories is the MULTIPLEX main
catalogue, as our products are designed and manufac-
tured exclusively by practising modellers for other prac-
tising modellers.
Always fly with a responsible attitude. You may think that
flying low over other people's heads is proof of your
piloting skill; others know better. The real expert does
not need to prove himself in such childish ways. Let other
pilots know that this is what you think too. Always fly in
such a way that you do not endanger yourself or others.
Bear in mind that even the best RC system in the world is
subject to outside interference. No matter how many years
of accident-free flying you have under your belt, you have
no idea what will happen in the next minute.
We - the MULTIPLEX team - hope you have many hours
of pleasure building and flying your new model.
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