Step #1 Servo Assignment
S-40
S-41
Note on installing flap servos
: Typical flap geometry
requires that the servo arms be significantly offset to
provide adequate down flap throw. This issue exists
because flaps typically have a large travel down (80 to 90
degrees) but very little up travel (less than 15 degrees).
To achieve proper flap travel, it is necessary that the right
flap sub-trim is set at 225 down and the left flap sub trim
is set at 225 up as a starting point. Then when installing
the flap servo arms, be sure the spoiler stick is in the
up position and camber lever in the middle position.
Install the flap servo horns so they angle approximately
30 degrees toward the trailing edge (if the flaps have the
control horn on the bottom of the flap) or 30 degrees
toward the leading edge (if the flap control horn is on top
of the flap) then adjust the flap linkage so the flaps are
level. See Sub-Trim on Page S-20 for more details.
Channel Assignment
Important
: In glider mode, the channel assignment
(servo lead positions in the receiver) of the X9503
2.4 is different than previous JR radios. This new
channel assignment has two important advantages:
• It allows you to use a 6-channel receiver to control
the 6 functions commonly found on full-function
sailplanes.
• It locates commonly mixed channels, like right
and left ailerons, right and left flaps, rudder and
elevator for V-tail, next to each other in the data
stream minimizing synchronizing delay issues.
Install the servos in the correct location in the receiver per
the chart and illustration below.
Servo
Channel #
Receiver Position
Left Aileron
1
Throttle
Right Aileron
2
Aileron
Elevator
3
Elevator
Rudder
4
Rudder
Right Flap
5
Gear
Left Flap
6
Flap/ Aux. 1
O
N
O
FF
4N1100
4.8V 1100mAh
JAPAN REMOTE CONTROL CO., LTD.
®
Note
: Position the flap and aileron servos so their output shafts face outward toward the wing tips.
30
°
30
°
B OTTOM C ONTR OL HOR N
TOP C ONTR OL HOR N
Left Aileron
Right Aileron
Elevator
Rudder
Right Flap
Left Flap
Switch
Receiver
Battery
Charge
Connection
Содержание X9503 2.4
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