1. Safety Information
Please read all safety instructions carefully before operating the helicopter to ensure safe use and prevent damage.
- Always operate the helicopter in an open area, away from people, animals, buildings, and power lines.
- Ensure the battery is fully charged before each flight.
- Do not fly in strong winds or adverse weather conditions.
- Keep fingers and loose clothing away from rotating blades.
- Supervision by an adult is recommended for users under 12 years of age.
- Turn off the helicopter and remote control when not in use.
2. Package Contents
Verify that all items are present in your package:
- 1x YU XIANG MD500 F119S Aircraft
- 1x Instruction Manual
- 1x Dedicated Balance Charger
- 5x Main Propeller Blades (Spares included)
- 1x Tail Propeller Blade (Spare included)
- 1x LI-POLY 11.1V (3500mAh) Smart Battery
- 1x 2.4G Smart Color Screen Remote Controller

3. Setup
3.1 Battery Installation and Charging
- Carefully open the battery compartment on the helicopter.
- Insert the LI-POLY 11.1V (3500mAh) Smart Battery, ensuring correct polarity.
- Close the battery compartment securely.
- To charge, connect the battery to the dedicated balance charger. Plug the charger into a power source. The charging indicator will show the charging status. Charging time is approximately 60 minutes.
3.2 Remote Control Preparation
- Install the required batteries (not included) into the 2.4G Smart Color Screen Remote Controller.
- Turn on the remote controller.
3.3 Pairing the Helicopter and Remote Control
- Place the helicopter on a flat, stable surface.
- Turn on the helicopter's power switch. The indicator lights will begin to flash.
- Within 10 seconds, turn on the remote control.
- Move the throttle stick (left stick) all the way up, then all the way down.
- The helicopter's indicator lights will become solid, indicating successful pairing.
4. Operating
4.1 Basic Flight Controls
Familiarize yourself with the remote control's functions:
- Throttle (Left Stick Up/Down): Controls altitude.
- Yaw (Left Stick Left/Right): Rotates the helicopter left or right.
- Pitch (Right Stick Up/Down): Moves the helicopter forward or backward.
- Roll (Right Stick Left/Right): Tilts the helicopter left or right for sideways movement.
- One-Key Takeoff/Landing: Press the designated button for automated takeoff or landing.
4.2 Advanced Flight Modes (6G/3D Switchable)
The MD500 F119S offers versatile flight modes:
- 6G (Self-Stabilizing) Mode: Ideal for beginners, providing stable flight with automatic leveling. The helicopter maintains a horizontal attitude automatically.
- 3D (Acrobatic) Mode: For experienced pilots, allowing for advanced maneuvers and inverted flight. This mode disables automatic leveling for full control.
- Switch between modes using the dedicated button on the remote control.
4.3 GPS and Optical Flow Positioning
This helicopter features advanced positioning systems for enhanced stability and functionality:
- GPS Positioning: Provides accurate outdoor positioning, enabling features like auto-return to home, waypoint flight, and precise hovering. Ensure a clear GPS signal before activating these functions.
- Optical Flow Positioning: Assists with stable hovering in indoor environments or where GPS signals are weak, by analyzing ground patterns.

4.4 Flight Demonstration Video
Video: A demonstration of the YU XIANG MD500 F119S RC Helicopter's flight capabilities, including takeoff, hovering, and maneuvers.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your helicopter.
- After each flight, inspect the main and tail rotor blades for any damage or cracks. Replace damaged blades immediately.
- Check all screws and connections to ensure they are tight.
- Clean the helicopter body with a soft, dry cloth. Avoid using water or chemical cleaners.
- Store the helicopter and battery in a cool, dry place, away from direct sunlight and extreme temperatures.
- Do not overcharge or over-discharge the battery. Follow charging instructions carefully.
6. Troubleshooting
Refer to the table below for common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Helicopter does not respond to remote control. | Not paired; low battery in helicopter or remote. | Re-pair the helicopter and remote; charge/replace batteries. |
| Helicopter flies erratically or is unstable. | Damaged blades; strong wind; incorrect calibration. | Inspect/replace blades; fly in calm conditions; recalibrate as per manual. |
| Short flight time. | Battery not fully charged; aging battery. | Ensure full charge; consider replacing the battery if it's old. |
| GPS functions not working. | Weak GPS signal; indoor environment. | Operate outdoors with a clear sky; wait for sufficient satellite lock. |
7. Specifications
Detailed technical specifications for the YU XIANG MD500 F119S RC Helicopter:
| Feature | Detail |
|---|---|
| Model Name | YU XIANG MD500 (F119S) |
| Scale | 1/16 |
| Material | High-Strength Composite Engineering Material |
| Rotor Diameter | 430mm |
| Drive Motor | 4306 560KV Brushless Motor |
| Tail Lock Motor | 1304 4400KV Brushless Motor |
| Remote Controller | 2.4G Smart Color Screen (9-Channel) |
| Remote Distance | >350m |
| Body Battery | LI-POLY 11.1V (3500mAh) Smart Battery, 25C |
| Charging Time | Approx. 60 minutes |
| Usage Time | 15-18 minutes |
| Product Weight | 2650g (5.84 lbs) |
| Product Dimensions | 48.5 x 43 x 19.06 cm (19.09 x 16.93 x 7.5 inches) |
| Recommended Age | 12 years and up |
8. Warranty and Support
For warranty information, technical support, or replacement parts, please contact WOWOBONTOY customer service or refer to the official product page.
- Keep your purchase receipt as proof of purchase for warranty claims.
- For additional resources and product information, visit the WOWOBONTOY Store.





