Table of Contents
Advertisement
Avoid repeated low altitude hand launches on a flat site as this is the most likely
opportunity for damage to occur as there is little time to made adequate corrections
when the model is flying close to the ground.
Ensure that both transmitter and receiver batteries are fully charged and carry out a
thorough range test in accordance with the instructions supplied with your radio
control equipment. Do not fly the model if you are in any doubt about the integrity of
the radio control system – seek further assistance.
Faults do not cure themselves!
Test flights can be carried out in several ways depending on the version of the model
you have chosen; at a slope site from a hand launch, at a flat-field site using a winch,
or from an aero-tow. In all cases always launch the model into wind with the wings
level and adjust the trims as necessary to achieve straight and level flight.
Check the centre of gravity once the model is flying at a safe height and comfortably
above the stall speed. Apply down elevator to place the model in a steep dive and
then allow the elevator to return to neutral and observe the flight path:
-
If it recovers in a gentle upward arc, without any further control inputs and
without ballooning up above the horizontal, then the CoG can be
considered to be about right.
-
If the model bounces quickly out of the dive and climbs strongly, the CoG
is too far forward. Readjust the battery position, or remove a little lead
from the nose and repeat the test.
-
If however the model shows no tendency to recover, or indeed if it shows
signs of tucking under, the CoG is too far back. Readjust the battery
position, or add a little lead from the nose and repeat the test.
Safety.
Our hobby is very important to us and as such it is essential that we recognise the
responsibilities associated with the building and flying of model aircraft:
Carefully built models exhibit outstanding flying characteristics and the
•
highest levels of reliability and safety.
Always carry out thorough pre-flight checks – observing structural integrity of
•
the model as well as correct movement and sense of all the flying surfaces.
Always carry out a through range check on all new models or following any
•
change of RC components.
Always check that your channel is free before switching on your transmitter.
•
Adequate third-party insurance is essential. Check the local laws governing
•
model flying in your region before flying your model.
Give due consideration to others when flying aerobatic manoeuvres and
•
never fly low and/or fast over other people.
Always be aware of the vulnerability of each individual component of your RC
•
system and maintain it responsibly.
Always give due consideration to other model flyers, provide ample air-space
•
and observe the local system of channel allocation.
Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D- 73230 Kirchheim/Teck *
16
www.graupner.de
Advertisement
Table of Contents
