Using The Transmitter For The Fi Rst Time; Using The Sticks - ROBBE-Futaba Skysport T4YF Bedienungsanleitung

9. USING THE TRANSMITTER FOR THE FIRST TIME

9.1 USING THE STICKS

Each of the primary sticks is responsible for two functions.
Aileron control (channel 1)
If you move the aileron stick to the right, the control surface on
the right-hand wing panel should defl ect up, and that on the left-
hand wing panel down. Move the same stick to the left, and the
left aileron should rise, the right aileron fall. The direction of aile-
ron defl ection can be reversed in the software using the "Servo
reverse" function (see Section 10).
If you move the aileron stick away from the neutral position
(centre) and hold it in that position, a model aircraft rolls around
its longitudinal axis in the direction of the stick defl ection. The
roll rate (speed) varies according to many factors, including the
amount by which you defl ect the stick.
The diagram below shows the response of the ailerons, looking
at the model from the tail.
left right
Elevator control (channel 2)
Deflecting the elevator causes the model aircraft to rotate
around its lateral axis. If you move the elevator stick forward
(away from you), the elevator should defl ect down; if you pull
the elevator stick back (towards you), the elevator should rise.
If this is not the case, you can correct it using the servo reverse
function.
If you move the elevator stick away from the neutral position
(centre) and hold it in that position, a model aircraft fl ies a loop.
The direction (positive or negative) and size of the loop vary
according to certain factors, including the direction and amount
by which you defl ect the stick.
The diagram below shows the response of the elevators, looking
at the model from the tail.
Skysport T4YF 2,4 GHz
forward
back
Throttle control (channel 3)
If you are fl ying a model aircraft powered by a glowplug engine,
operating the throttle stick causes the carburettor barrel to open
and close. Moving the stick in the direction of full-throttle causes
the carburettor barrel to open further; moving it towards idle clo-
ses the barrel. The direction of throttle control can be reversed
in the software using the servo reverse function.
When setting up the throttle linkage it is very important that the
servo travel should not be limited by the mechanical system, i.e.
the servo must be able to move to its end-points, including trim
travel, both at the full-throttle end and at idle. When the system
is set up perfectly, the carburettor will be fully open when the
stick is moved fully forward, with the trim at centre. However,
left it is just as important that the engine should run reliably at idle
when the stick is moved back to the idle end-point. When set up
in this way, the engine can be stopped completely by pulling the
right
trim back to its end-point when the stick is at idle.
The diagram below shows this function
Full throttle
Idle
Rudder control (channel 4)
If you move the rudder stick to the right, the rudder should also
deflect to the right. Move the same stick to the left, and the rud-
der should move to the left. The direction of rudder deflection
can be reversed in the software using the servo reverse func-
tion.
down elevator
up elevator
Idle
Full throttle
When the model is banked over (one wing higher than the
other), the rudder also acts in part as an elevator, causing the
model to "tuck in" to the turn. This dangerous situation can be
corrected by applying slight up-elevator (stick back towards
you) at the same time. It is often necessary to apply opposite
rudder to return the model to a stable flight attitude.
The diagram below shows the response of the rudder, looking
at the model from the tail.
left right
left right
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