Connecting RX wires
The wires are labeled from the factory. If you are using the DX18, the program is available on
a SD card from BVM. Follow the chart below to connect the servos.
DX18-20 Connection Chart
RX Port
Surface
RX Port
Surface
RX Port
Surface
RX Port
Surface
DX18, DX18QQ, DX 20 Transmitter File
The BVM Demo models are setup on Spektrum DX18 transmitters. The file included on the
SD card has all the mixes, rates, expos, and settings done for you. Setting the sub trim and
travel adjustment must be accomplished by the modeler for the specific aircraft.
Important!!! Check the directions of all flight controls before each flight.
Switch/Lever/Trimmer Channel
Switch A
Switch B
Switch C
Switch D
I
L. Trim
Switch F
Switch G
R Knob
Right Lever
Switch E
BVM ®2021
Throttle
Aileron
Elevator
Throttle
Right Ail
Right Elev
(Ail 2)
(Elev 2)
Aux2
Aux3
Aux4
Right
Left
Left Elev
Flap
Rudder
(Elev 1)
X-1
X-2
X-3
Leave
Leave
Smoke
Open
Open
X-7
X-8
Brakes
X+6/Gear Flight Timer
X+4/
X+3 Smoke
Flaps Chanel 5/ Aux 2
Steering Trim/Aux 7
Aileron Rates
Gyro Aux 5
Aux 6 Canopy
X+5 Speed Brake
X+7 Brakes
Rudder
CH 5
Rudder
Left Flap
Right
Aux5
Aux6
Gyro
Canopy
X-4
X-5
Lights
Speed
Brake
Output
(0) Gear Down
(1) Gear Up/ Timer Starts
(0) Lights Off
(1) Nav Lights On
(2) Nav and Landing Lights On
(0) Off
(1) Medium
(2) Full
(0) is Normal flight
(1) is Flaps Take Off w/ up elevator mix
(2) is Flaps Landing w/ up elevator mix
Down for Right Steering Trim
Up for Left Steering Trim
Up (0) is High
(0) Off
(1) Mid Rate 50%
(2) High Rate 60%
Left Open/ Right Closed
Up/Away – Brake Closed
Down/Pulled – Brake Open
(0) Brakes Off
(1) Brakes Mid/ Pulsing
(2) Brakes Full Stop
31
Aux1
Left Ail
(Ail 1)
Aux7
Nose Wheel
X-6
Gear
10/2021
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