Multiplex KIT FUNRAY Instrucciones De Montaje página 25

Building instructions
this, you will have many hours of operating pleasure with your model.
For the 'spoiler' function, both ailerons are set upward and the flaps
downward (butterfly or crow) to shorten the landing approach. At the same
time, a corresponding hydroplane deflection is mixed in to keep the model in
a stable flying condition. This requires a remote control with corresponding
mixers.
To this end, always read the instructions of your remote control
carefully!
The butterfly setting enables steep and accurate landing approaches
even in difficult terrain.
Hint: Depending on the terrain (e.g. tall grass), we recommend retracting
the battery again shortly before making contact with the ground to ensure
the hinges and linkages are not strained / damaged.
Important: With the 'right' aileron, the aileron on the right looking in the
direction of flight moves upward. At the same time,
the right flap moves halfway up with it. With downward aileron deflection,
the flap does not move downward with it!
If your remote control does not permit the distances specified above, you
might need to adjust the pushrod connector.
Make sure that all remote control components are fitted correctly and
connected. Check the rudder settings, directions of rotation of the servos,
and freedom of movement of the rudder mechanisms. Make sure the
connection cables are nowhere near the rotating motor (secure with hot
glue)! Check the motor rotation direction again (carefully!).
56. Preparations for the first flight
For the first flight wait for a day with as little breeze as possible; the
evening hours often offer calmer conditions.
It is essential to carry out a range-check before the first flight! Please
follow the instructions laid down by your RC system manufacturer.
The transmitter battery and flight pack must be fully charged in accordance
with the manufacturer's recommendations. Before switching the system
on, ensure that your chosen channel is free; this does not apply if you are
using a 2.4 GHz system.
If you are unsure about any point, do not fly the model! If you cannot
identify and cure the problem, send the whole RC system (including
battery, switch harness and servos) to your system manufacturer for
checking.
57. Maiden flight ...
The aircraft is designed to be hand-launched (always into wind).
If you are a beginner to model flying, we strongly recommend that you
ask an experienced modeller to help you for the first few flights. Once
the model has reached a safe height, adjust the control surfaces using
the trims on the transmitter, so that the model flies straight and level
"hands-off".
Powered version: with the aircraft flying at an adequate altitude, check
how it responds when the motor is switched off, so that you are familiar
with its behaviour on the glide. Carry out repeated simulated landing
approaches at a safe height, as this will prepare you for the real landing
when the battery is discharged.
Avoid flying tight turns at first, especially close to the ground, and in
particular during the landing approach. It is always better to land safely
some distance away than to risk a crash by forcing the model back to
your feet.
58. Thermal flying
Making the best use of flat field thermals is not particularly easy, and calls
for considerable skill and experience. Areas of rising air are harder to
detect and recognise at a flat field, because they tend to occur at higher
altitude than at the hillside, where it is often possible to find lift while the
model is cruising along the edge of the slope, and then circle away in it.
A thermal at a flat field which occurs directly overhead is very hard to
recognise, and to exploit it to the full requires a highly skilled pilot. For this
reason it is always best to go thermal seeking off to one side of where
you are standing.
You will recognise thermal contact by the glider's behaviour. Good
thermals are obvious because the model will climb strongly, but weak
thermals take a practised eye to detect, and you will need a lot of skill
to make use of them. With a little practice you will be able to recognise
likely trigger points for thermals in the local landscape. The ground warms
up in the sun's heat, but heat absorption varies according to the type of
terrain and the angle of the sun's rays. The air over the warmer ground
becomes warmer in turn, and the mass of warm air flows along close to
the ground, driven by the breeze. Strong winds usually prevent thermal
build-up. Any obstruction - a shrub or tree, a fence, the edge of a wood, a
hill, a passing car, even your own model on the landing ap-proach - may
cause this warm air to leave the ground and rise. Imagine a drop of water
on the ceiling, wandering around aimlessly, and initially staying stuck to
the ceiling. If it strikes an obstruction it will fall on your head. A triggered
thermal can be thought of as the opposite of the drop of water.
The most obvious thermal triggers include sharply defined snow fields
on mountain slopes. The air above the snow field is cooled, and flows
downhill; at the edge of the snow field, part-way down the valley, the cool
air meets warm air flowing gently uphill, and pushes it up and away as if
cut off by a knife. The result is an extremely powerful but bumpy thermal
bubble. Your task is to locate the rising warm air and centre your model
in it. You will need to control the glider constantly to keep it centred, as
you can expect the most rapid climb rate in the core of the thermal. Once
again, this technique does demand some skill.
To avoid losing sight of the machine be sure to leave the thermal in good
time. Remember that a glider is always easier to see under a cloud than
against a clear blue sky. If you have to lose height in a hurry, do bear the
following in mind:
The structural strength of the Heron is very great for this class of model,
but it is not infinite. If you attempt to destroy the model forcibly, please
don't expect any sympathy or compensation from us (alas, we speak from
experience).
59. Flying at the slope
Ridge soaring is an extremely attractive form of model flying. Soaring for
hours on end in slope lift, without needing any outside aid for launching,
must be one of the finest of modelling experiences. But to "milk" a
thermal to the limits of vision, bring it down again in a continuous series
of aerobatic manoeuvres, and then repeat the whole show - that must
surely be the last word in model flying.
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