This is for FMS P38, 1.7M P51 and 1.7M P47 as well as other planes which is detacheable wing.
It is a convenience way to connect the servos of the wing when plug in the wing to the fuselage in flying field.
It is plug once for left and ring wing(twise plug). If no use this connector, you may have an experience, you need to plug 6 plugs in the flying field, aileron servo to the extension wire which connected to the receiver, retract to the extension wire which connected to the receive............... then do same for the other side of wing. It is inconvenience and sometime pulg the servo to wrong CH, I have an experience once fix the wing to the fuselage, I found the aileron plug to the extension wire which connected to retract CH, I need to remove the wing, then correction the mistake, so trouble!!!!!!!
Use this connector, you never meet this embarrassing in the flying field.
For FMS P38, 1.7 P51 and P47, please refer the user manual.
For the other planes which have servo in the wing, like aileron, flap, retract even gear bay door. Connect the servos of the wing to the circuit board, leave the wire with plug A in the wing for ready use.
Connect the wires of plug B to the receiver address to the correct CH. For most planes, elevator and rudder servos is in the fuselage, thus no need connect CH2; and CH4 wire of this unit to receiver, lets plug the servos of elevator and rudder to the receiver directly as usual, blank the CH2 and 4 wire of this unit, leave it not to connect.
CH3 ESC most plane also inside the fuselage, you need use a Y harness connect the ESC and the CH3 wire of this unit, then plug the Y harness to the receiver, this is for power supply to the receiver and other CHs.
Beware of short circuit:
If some CH(s) you not to use with this unit, I suggest you wrap or use a blank plug to protect the pin of the connector of A and B to avoid + - power form the connection pin short by any metal object like screw, push rod....