CopterX CX250SE User manual

CX250SE
Kit Helicopter
www.copterx.com
Copyright © 2011 KY MODEL Company Limited.
INSTRUCTION MANUAL
INSTRUCTION MANUAL

01
MENU
1
2
3
4
5
6
7
8
9
10
11
Table of content
Introduction
Safety Guidelines
Radio Equipment and Electronics
Assembly Tools Requirement
Main Rotor Assembly
Frame and Gear Assembly
Frame Assembly
Main Body Assembly
Tail Rotor Assembly
Tail Section Assembly
Complete Kit Assembly
1
2
3
4
7
8
9
10
11
12
CX250SE
Kit Helicopter

1. Introduction
Thank you very much for buying a CopterX 250SE RC product. In order to be able to use this
product safely, please read this manual before flying the helicopter. Please fly the helicopter safely
observing all rules and manners after having fully understood the flight precautions, the unit’s
capabilities, and the best way to fly it. Be sure to retain the manual for future reference, routine
maintenance, and tuning.
IMPORTANT NOTES
•This helicopter is recommended for skilled intermediates and advanced RC helicopter flyers.
•Make sure to read and follow all the instructions in this manual, including all accessories.
•Should any problems arise, please confirm with an experienced RC helicopter personnel /
instructor before introductory flight.
•Always find an experienced and / or qualified personnel / instructor for per flight inspection.
•Make sure flight vicinity is in an open space; free of crowds, obstacles, and buildings. Failure to
abide may cause accidental and potentially hazardous encounters.
•Introductory flight should incorporate only the basic maneuvers (hovering, linear movements),
until stick feel is mastered.
2. Safety Guidelines
Locate an appropriate location: R/C helicopters fly at very high speeds, thus posing a certain
degree of danger. Choose an appropriate location. A clear large room such as a Gymnasium,
basketball court, warehouse. Do not fly the model on residential or commercial places such as near
houses or buildings. Do not fly near electrical poles or high voltage cables that may cause radio
interference. Do not fly model on inclement weather such as rain, wind if snow.
Acquire the assistance of an experience pilot: Before starting up the model it is best that it is
checked by someone that is experienced with this models, Parts checking prior flight is mandatory.
On the flying field before actual power up of model and transmitter make sure the no other pilots
have the same frequency. Frequency interference can cause your model and other model of same
frequency to crash.
For first time pilots its highly recommended that you use a simulator (Computer based flight
simulator) for enhancement of flight skills
Aware of moving parts: During actual operation of the helicopter, the main rotor blades will be
spinning at a very high rate of speed. The blades are capable of imposing serious bodily injury and
damage to the environment. Be careful on body parts such as hand, eyes, arms. Also be cautious of
loose clothing, can be sucked up by the rotating blades. Do not turn your away you eyes when the
model is turned on or in use. Never leave the model unattended. Immediately turn off the model
and transmitter after use.
02
CX250SE
Kit Helicopter

Prevent Moisture: R/C models are composed of many precision electrical components that is
sensitive to moisture and water. Keep away from water sources or moisture related places.
The introduction of moisture in any form can seriously damage the electrical parts of the model
that can cause malfunction and premature flight patterns.
Keep Away From Heat: R/C models are made of some parts plastic.
Make sure to store the model away from head producing appliances such as heaters or stoves. It is
best to keep the model indoors in a controlled cool environment with ambient room temperature.
NOTE: The following marks will be seen on the pages of this instruction manual. This designates
location and contact points that needs application of adhesive. Liquid thread lock are usually used
on metal to metal contact screws normally with fine pitch threading. For Metal to plastic CA can be
applied screws designated as force threading or self tapping.
03
CX250SE
Kit Helicopter
3. Radio Equipment and Electronics
Transmitter
(6-channel, helicopter system)
4. Assembly Tools Requirement
Reciever
(6-channel, or more)
Reciever
(6-channel, or more)
Gyro
Scissors CA GluePitch GuageBall Link Pliers Liquid Thread LockCuter Blade
Liquid Thread Lock Cyano Acrylate ( CA )

04
CX250SE
Kit Helicopter
5. Main Rotor Assembly
No.
1
2
3
4
5
Code No.
CX250-01-01
CX250-01-03
CX250-09-01
CX250-01-05
CX250-01-11
Name
Metal Main Rotor Housing
Metal Flybar Seesaw Holder
Bearing
Metal Flybar Control Set
Linkage Set
Spec.
1.5 x 4 x 1.2mm
No.
6
7
8
9
10
Code No.
CX250-01-04
CX250-01-07
CX250-09-02
CX250-01-08
CX250-01-06
Name
Metal Control Arm Set
Metal Washout Control Arm Set
Bearing
Metal Swashplate
Metal Washout Base
Spec.
1.5 x 4 x 2mm

05
CX250SE
Kit Helicopter
No.
11
12
Code No.
CX250-01-12
CX250-01-13
Name
Flybar
Flybar Paddle
Spec. No.
13
Code No.
CX250-01-09
Name
Main Shaft
Spec.

06
CX250SE
Kit Helicopter
No.
14
15
16
Code No.
CX250-01-01
CX250-01-10
CX250-01-02
Name
Metal Main Rotor Housing Button
Feathering Shaft
Metal Main Blade Holder
Spec. No.
17
18
Code No.
CX250-01-01
CX250-09-04
Name
Rubber Damper
Bearing
Spec.
2.5 x 6 x 2.6mm

07
CX250SE
Kit Helicopter
6. Frame and Gear Assembly
No.
19
20
21
Code No.
CX250-03-01
CX-5G
CX250-05-02
Name
Carbon Fiber Upper Frame
CopterX 5G Servo
Main Gear
Spec. No.
22
23
Code No.
CX250-05-01
CX250-09-07
Name
Main Gear Set with One Way Bearing
One Way Bearing
Spec.

08
CX250SE
Kit Helicopter
7. Frame Assembly
No.
24
25
26
27
28
29
Code No.
CX250-03-04
CX250-03-11
CX250-03-07
CX250-03-10
CX250-03-09
CX250-03-02
Name
Carbon Fiber Battery Mounting Plate
Metal Stand Off
Metal Main Shaft Locating Set
Metal Tail Gear Drive Set
Metal Tail Boom Block
Carbon Fiber Lower Main Frame
Spec. No.
30
31
32
33
34
Code No.
CX250-03-08
CX250-03-03
CX250-03-06
CX250-10-02
CX250-09-06
Name
Metal Motor Mount
Carbon Fiber Gyro Mount
Bottom Plate
Brushless Motor
Bearing
Spec.
3400kv
3.5 x 7 x 2.5mm

09
CX250SE
Kit Helicopter
8. Main Body Assembly
No.
35
36
37
Code No.
CX250-03-05
CX250-03-12
CX250-04-04
Name
Carbon Fiber Anti-rotation Bracket
Canopy Mounting Bolt
Landing Skid
Spec. No.
38
39
Code No.
CX250-04-02
CX250-04-03
Name
Landing Skid Pipe
Landing Skid Nut
Spec.

10
CX250SE
Kit Helicopter
9. Tail Rotor Assembly
No.
40
41
42
43
44
Code No.
CX250-07-02
CX250-02-05
CX250-02-00
CX250-02-02
CX250-02-03
Name
Tail Boom
Drive Belt
Metal Tail Rotor Set
Metal Tail Holder Set
Tail Rotor Control Set
Spec. No.
45
46
47
48
Code No.
CX250-02-04
CX250-06-02
CX250-09-03
CX250-09-02
Name
Metal Tail Rotor Shaft
Tail Rotor Blades
Bearing
Bearing
Spec.
2 x 5 x 2.5mm
1.5 x 4 x 2mm

11
CX250SE
Kit Helicopter
10. Tail Section Assembly
No.
49
50
51
Code No.
CX250-07-06
CX250-07-07
CX250-07-05
Name
Metal Rudder Servo Mount
Plastic Rudder Linkage Rod Mount
Metal Horizontal Stabilizer Mount
Spec. No.
52
53
Code No.
CX250-06-03
CX250-07-03
Name
Carbon Fiber Stabilizer Set
Carbon Tail Boom Brace
Spec.

12
CX250SE
Kit Helicopter
11. Complete Kit Assembly

www.copterx.com
Copyright © 2011 KY MODEL Company Limited.