GRAUPNER GmbH & Co. KG * Henriettenstrasse 94-96 * 73230 Kirchheim/Teck
www.graupner.de
*
www.tangent-modelltechnik.com
16
Landing Setting
Up
Down
Remarks
Flaps
--
5
Butterfly
Aileron
25
--
Butterfly
Elevator
--
11
Reach
Your KULT Champ is now ready for the first test flight!
First Flights.
Experienced model flyers will now be waiting for the first opportunity to test fly the KULT
Champ and fine-tune the setup to best suit their individual style of flying. The following advice
is intended to help those with less experience to carry out the test flight and successfully trim
the model:
Every flying machine, from the most humble chuck glider to the full size aircraft, must be test
flown and trimmed after completion and your KULT Champ is no exception. The slightest
deviation in manufacture or construction can lead to minor variations in flying characteristics
and control responses. Test flying is the means to optimise the centre of gravity and
generally fine-tuning the control response.
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 the model 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.
