Lanxiang Model Aircraft YF-23 User manual

lanxiang reserves the right to modify the specification or
printing errors without prior notice.
Address:
Shanghenglang Longhua Bao'an District Shenzhen China
4th floor B Building Yuanye Industrial Park Baiyun New Village
YF-23YF-23YF-23
A R/C model airplane is not a toy and is not suitable for flyer
under 14 years old.Read the instructions carefully before any use.
If you are a beginner, it is necessary to let an experienced airplane
pilot assist you.

PROHIBITED: this symbol points out actions that you should not do
to avoid possible damage or accidents.
1.Do not fly in thunderstorm,
strong winds or bad weather.
5 . Make sure that the model as well as
the control system is in the good state
before the plane takes off.
3 .Never fly the Model where are crowds of
people. Give yourself plenty of room flying ,
as the plane can travel at a high rate of speed .
Remember you are responsible for the safety
of others.
2 .Never fly the Model where are crowds of
power lines overhead , automobiles or near
highways , subways.
Meaning of the icons.
WARNING!: this symbol indicates where caution is essential to
avoid injury to yourself or others .
Safety instructions
4. Do not fly in where the same frequency
model plane is flying nearby.
1
If you have any questions in regarding to the safe operation, or possible
please call your local hobby shop for professional advice.
precautions
Radio-controlled models are very demanding and potentially dangerous
They call for a high level of technical knowledge and skill from the operator.
Please always keep this instruction manual ready at hand for quick reference,
even after completing the assembly.
machines.
Note: SHENZHEN LANXIANG MODEL AIRCRAFT CO.,LTD
will not take any responsibility for damage or accident caused by
the improper use of this model.
YF-23 is a jet pane with twin 70 EDF which suits for
intermediate or senior aviators .
In order to fly the YF-23, please make sure you read through the
carefully before attempting to operate the model for the first time.
instructions
7.Do not attempt to catch the
model while flying.
8.Not recommended for children under 14years old,
Children under years old should only operate this
model under the guidance of a responsible adult.
14
9.Do not store this model in a high-temperature
or humidity area or in direct sunlight.
6. use genuine accessories as
replacmente for damaged parts.
Only
Thank you for purchasing YF-23.
2
YF-23

3 4
1.Open the back cover of the remote control,mounted on the 8 pieces AA batteries.
2.Press the button on the receiver,then plug the power of receiver(to the receiver supply voltage is 5V), after plugging in the
power and release the button, then the receiver’s LED flashes,Then open the remote control switch, when the remote control
is turned on the LED will light up after flashing quickly about 2 seconds.the LED on the receiver lights up means frequency
matches up successfully.
3.If the LED on the receiver is still flashing then repeat the steps above.
4.The steps of using the remote control properly: first,the throttle stick to the lowest, and then turn on the remote control, and
then the middle LED on the remote control will flash, then connect to the receiver power till the LED lights up.
5.Remote control of the factory has been fixed the frequency, and do not need todo it again. if you encounter the LED on the
receiver is flashing, check whether theremote control is turned on or not (you can check the middle LED on the remotecontrol
is lighted up or not). if not turning on the remote control, LED on the receiver will flashes as well. and if the remote control has
been turned on and still not working then try to fix the frequency again.
6.There are 3 LED on the remote control is used to identify the remote voltage is normal or not . the green one in the middle
lights up long time means the voltage isnormal; the green one in the middle lights up long time and red ones on both sides
flash means the voltage is too low and please replace the battery or charge the battery.
SW-A (Function switching over 1, 2 mode)
SW-B (CH7,CH8,CH9 channel switching over);
SW-C (CH1,CH2 channel mixed control / unmixed control switching over SW)
SW-A ON.SW-B ON. SW-C MIXED, turn on radio system:CH1 and CH2
mixed control, CH7 and CH2 synchronization,CH9 and CH1 synchronization,
CH8 and CH4 synchronization; when the radio system power is turning on,
SW-A switching over invalid, when SW-B OFF, CH7,8,9 on center. SW-A ON. SW-B OFF, SW-C MIXED,turn on radio system:CH7,
CH8,CH9 autonomous working,CH1 and CH2 mixed control ; when the radio system power is turning on: SW-A switching over
invalid,SW-B switching over invalid.
SW-A ON, SW-B ON, SW-C MIXED, turn on the radio system:CH1 and CH2 mixed,CH7 and CH2 synchronize (CH7 and CH1 unmixed control), CH8
and CH4 synchronization ; when the radio system power is turning on:SW-A switching over invalid, SW-B switching over invalid.
SW-A OFF, SW-B OFF, SW-C MIXED,turn on the radio system: CH1 and CH2 mixed,CH7, CH8, CH9 autonomous working; when the radio system
is turning on:SW-A switching over invalid,SW-B switchingover invalid.
AB
CD
E
F
G
H
Retract control switch
Flap control switch
Vector SW switch
Dual rates servo SW switch
Throttle, rudder rocker
Elevator aileron rocker
Mode 1/2 SW switch
Mixed control switch
H

5
General view schedule.
1
1
Front fuselage installation
2
(1) (2~3).The installation for front retract steering , the extension cord of retract servo.
2
6
3
SPECIFICATION:
Length:1300mm
Wingspan:809mm
EDF diametre:2×70mm
Flying weight:2600g
Thrust:≥2600g
CONTENTS INCLUDE:
12CH RC
2×50A brushless ESC
1×5A UBEC
7×digital metal servo
3pcs screw servos
2×2100KV Out brushless motor
6S 25C 4000mAh battery
electric brake
YF-23
pcs core of conductors

45
(2) (4~5).The installation of steering servo in front retract
(4) The installation of front retract (8~9).
67
7 8
(6) ( ).The installation of battery bandage 17~19
12 13
14 15 16
20 21
YF-23
(3) ( ).The bonding of front fuselage 6~7
8 9
(5) The installation of front-wheel steering (10~16).
10 11
17 18 19
(7) Canopy installation (20~25).

9
22 23
28 29
(8) Cowling installation (26~33).
24 25
26 27
10
(1)
flap ,retract and brake wheel extend line.(34~35)
The installation of Horizontal tail, aileron,
YF-23
30 31
32 33
Back fuselage installation.
3
34 35

12
48 49
50 51
52 53
YF-23
(4) ( ).The wing plug installation 45~47
45 46 47
(5) ( ).The bonding of back fuselage 48~49
(6) ( ).The installation of the permanent seat of EDF cover 50~51
(7) ( ).The installation of receiver case 52~53
11
36 37
38 39
(2) ( ).The installation of the wire casing cover and cooling fin. 36~41
40 41
(3) ( ).The installation of EDF and ESC 42~44
42 43 44

13
The wing installation.
4
(1) ( ).Aileron installation 57~60
57 58
59 60
54 55 56
(8) ( ).The installation of rear retract 54~56
(2) ( ).Flap installation 61~64
61 62
Left retract
Right retract
14
63 64 65
(3) (65).Push rod installation
Tail wing installation(66~70) .
5
The connection of the front and back fuselage (71~72) .
6
71 72
YF-23
66 67 68
69 70

15 16
YF-23
The connection of the wing and fuselage (73~79).
7
The connection of tail wing and fuselage (80~83).
8
80 81
82 83
86 87
88 89
73 74 75
The receiver installation (84~99).
9
84 85
78 79
76 77

1817
92 93
94 95
The power on of remote control (100~101).
10
100 101
Battery installation (102~105).
11
102 103
104 105
YF-23
90 91
98 99
96 97

20
(3) (113~114).Flap testing
113
(4) (115~116).Front-wheel steering
115
116 117
(5) (117).Throttle testing
19
YF-23
The setup of Throttle calibration (106).
12
1, Turn on the transmitter
and set the throttle
stick to full throttle
(highest position).
2, Connect the battery
to the ESC and wait for
approximately 2 seconds.
3, “Beep-beep” will
sound which indicates
full throttle position.
7, The system is
ready to take off.
6,
which indicates the
lowest throttle position
“Beep” will sound 5, A few short stridors
indicate the cell of battery.
4, Setting up the throttle
to the lowest position and
wait 1 second.
Channel Testing .
13
Rudder testing(107~109).(1)
106
(110~112).(2) Aileron testing
110 111 112
114
D/R:80%
D R:100/ %
109107 108
118
CH2
CH1
Flap
CH4
D/R:80%
D R:100/ %

2221
YF-23
123 124
121 122
129 130
131 132
Beauty (119~132) .
14
125 126
127 128
119 120

2423
rotary.
YF-23
YF-23
CG debugging.
15
82mm
CG

YF-23
16 Parts List .
NO of Accessories
Bag Name of Accessories Bag Quantity RTF ARF KIT
YF23-001
YF23-002
YF23-003
YF23-004
YF23-005
YF23-006
YF23-007
YF23-008
YF23-009
YF23-010
YF23-011
YF23-012
YF23-013
YF23-014
YF23-015
YF23-016
YF23-017
YF23-018
YF23-019
YF23-020
YF23-021
YF23-022
YF23-023
YF23-024
YF23-025
YF23-026
YF23-027
YF23-028
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
2
1
1
1
1
1
√
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√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
×
×
×
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
×
×
×
×
×
×
×
Extension cord
The screws of fixing steering servo
Front-wheel steering
Fixing battery
The permanent seat of canopy
Magnet
Wire casing cover and cooling fin
The wing plug permanent seat
The EDF permanent seat
Receiver case
For aileron
For flap
For tail wing
For connector
Spare chucks
Glue
Decal
For front retreact
For rear retract
Retract controller
Brake controller
70mm EDF
Motor
50A ESC
Servo
Battery
12 ch Receiver
12ch Transmitter
001 002 004
005 006 007
008 009 010
012 013 014
016 017 018
020 021 022
024 025 026
028
027
023
019
015
011
003
The extension cords of the servos
of aileron and flap×4
The extension cord of the servos of
front-wheel steering ×1
The extension cord of the servos
of tail wing × 2
The extension cord of the retract
servos and brake ×5
19 pcs core of conductor
4 pcs Y Line for aileron , flap , ESC
and tail wing .
2625