User Manual

Current Switch Position – (Servo Speed)
Indicates the current switch position. It does not necessarily represent what is presently
displayed. To display a different position, highlight and select Pos0 to toggle it between
Pos0 and Pos1.
Servo Directions – (Servo Speed)
The arrows depict the servo directions. They are paired together to represent either Up or
Left and Down or Right. The speeds for each direction are listed under the direction
indicators.
Servo Speeds – (Servo Speed)
Servo speed is expressed in seconds for 60 degrees of travel. If set to NORM, the servo
moves according to its rated speed. Once selected, the servo speed can be adjusted from
.176 seconds/60 degrees (very fast if the servo is normally this fast or faster) up to a
maximum value of 15 seconds /60 degrees of travel (very slow).
A servo cannot be made to travel any faster than its specifications dictate, but it can be
slowed-down. When slowing a servo, it is sometimes necessary to decrease the speed
until the servo is noticeably slower to get into the rated speed range of the servo.
Slowing down servos for primary flight controls (Aileron, Elevator and Rudder)
must be done with extreme caution because if the servos controlling these flight
controls are too slow it may be difficult or impossible to control the aircraft.
Channels – (Servo Speed)
Each of the 9 channels is listed on the display. The channels are named according to their
assignments when appropriate. For instance, when channel 6 (AUX1 or FLAP) is used as
a second aileron channel, it will be labeled LAIL for left aileron.
Switch Selector – (Servo Speed)
This parameter allows for selecting a Flight Mode or switch to switch between 2 sets of
servo speeds – Pos0 speeds and Pos1 speeds. To select a Flight Mode or switch,
highlight and select SELECT and a list of available switches and Flight Modes appears.
The list of switches includes FM0, FM1, FM2, AIL, GER, RUD, and MIX. If Flight
Modes are not active, the list does not contain FM0, FM1, or FM2.
Throttle as a Switch – (Servo Speed)
The throttle stick may also be used as a switch to select between 2 sets of servo speeds. It
can be used by itself or in conjunction with one or more switches.
To use the throttle to switch between the Pos0 and Pos1 servo speed settings, highlight
and select THRO STK. Now use the rotary to dial-in a throttle stick percentage/position
where 1 = lowest throttle position and 100 = full throttle position. The throttle trim does
not affect the switch point.
CLR Button – (Aileron Differential)
Pressing the CLR button while a modifiable parameter is selected will reset the parameter
to its default value. For servo speeds, the default is NORM and for the throttle stick
when used as a switch the default is INH.
JR XP9303 Detailed Function Descriptions 71