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The balance point of the Xcalibur+ is 195mm
back from the leading edge at the root of the
wing panels, this should be measured with the
undercarriage extended and with any header
tank (if used) full.
Balancing the Xcalibur+
We recommend the use of a long runway for first flights, particularly if this is the first jet model you
have flown. The Xcalibur+ a good sized model with a matching performance, so it can cover a
great deal of sky in flight – having a long runway and plenty of available air space makes the early
flights much safer and more enjoyable.
Do carry out thorough range checks before flying, both with the turbine shut down and running,
and check for any radio interference caused by the turbine, throughout the rpm range. Also check
all the controls, ensuring that they operate in the correct direction and with the correct movements,
and that there is no slop or lost motion in any of the linkages. Check that all clevises and ball joints
are secure. Any clevises being used must have keepers fitted for added security. Finally check the
retracts to make sure they are operating correctly and that no air leaks have developed.
Once happy, refill the fuel and air tanks, and once the turbine is running check that it will hold full
power without any air appearing in the fuel lines which could then result in a flameout on take-off.
Taxi the model out to the runway being used – although flap can be used for take off we suggest
that this is not done for first flights. If the nosewheel is correctly trimmed then no rudder application
Flying Notes
195mm
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