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The WLtoys F959 Sky-king is a remote-controlled airplane designed for recreational flight. This manual provides essential information for operating, maintaining, and ensuring the safe use of the aircraft. It is important to read this manual thoroughly before your first flight to understand the device's functions, safety precautions, and proper handling.
The F959 Sky-king is an RC airplane that allows users to experience controlled flight. It operates on a 2.4GHz frequency, providing a stable connection between the remote control and the aircraft. The airplane is powered by a single main engine, which drives a propeller to generate thrust for flight. Its design emphasizes ease of use, making it suitable for both beginners and more experienced users, especially when following the recommended learning approach with an experienced pilot.
The remote control, or transmitter, is the primary interface for controlling the F959 Sky-king. It features various controls to manipulate the airplane's movement in the air. The direction control stick allows for steering, while the throttle control stick manages the aircraft's speed and altitude. Trim buttons are provided for fine-tuning the airplane's stability and flight characteristics, including yaw, aileron, rotation, and speed. An LCD display on the transmitter provides visual feedback on various settings and the battery indicator. The transmitter also includes a power switch, a camera button (though the manual does not specify a camera on the aircraft itself, this button is present on the transmitter), and a power LED.
The airplane is equipped with a rechargeable Li-po battery, which provides the necessary power for flight. The charging process is straightforward, using a dedicated charger that connects to a wall socket. The charger features an LED indicator to show the charging status, indicating when the battery is charging, fully charged, or if there's an issue with the battery or charger. A spare propeller and a wingstiffener are included, suggesting that these components may be subject to wear or damage during use and are easily replaceable.
To operate the F959 Sky-king, users must first ensure that the aircraft's Li-po battery is fully charged and that the remote control has fresh AA batteries installed. The manual emphasizes the importance of using recommended battery types for the remote control. Once both the aircraft and transmitter are powered on, a connection is established, allowing for flight control.
The remote control offers precise control over the airplane's movements. The direction control stick is used for turning and maneuvering, while the throttle control stick adjusts the engine's power output, directly influencing the airplane's speed and ascent/descent. The trim functions are crucial for achieving stable flight. If the airplane tends to drift in a particular direction, the corresponding trim button can be adjusted to correct this, ensuring a more balanced flight. The LCD display on the transmitter provides real-time information, such as the battery indicator, selected modes, and trim settings, which helps the user monitor the aircraft's status during flight.
Safety is a paramount usage feature. The manual strongly advises flying in open and safe environments, away from people, animals, large groups, and obstacles like high voltage pylons or other cabling. It also cautions against flying in adverse weather conditions such as strong winds (above 2 Beaufort), limited visibility, dark conditions, thunderstorms, rain, or high humidity, as the device is not water-resistant. For new users, it is highly recommended to learn to fly with an experienced user to develop necessary skills and ensure safe operation. Before each flight, testing the distance limit of the transmitter is a good practice to ensure reliable control.
After each flight, it is essential to disconnect and remove the battery from the aircraft and switch off both the model and the transmitter. This prevents accidental activation and conserves battery life. The included wingstiffener is likely a component to enhance the structural integrity of the wings, which might be installed or adjusted as needed for optimal flight performance.
Proper maintenance is crucial for the longevity and safe operation of the F959 Sky-king. The manual outlines several key maintenance practices, particularly concerning the Li-po battery and general handling of the aircraft.
The Li-po battery requires specific care. It must be charged using only the supplied charger and always on a non-combustible surface. Users should never leave the battery charging unsupervised. It is important to charge the battery to 100% and avoid charging it immediately after a flight or when it is warm. The battery wires must not be in contact to prevent short-circuits, and the ignition wires should not be modified or damaged. Mechanical damage to the battery can lead to an explosion, so careful handling is essential. The battery should be kept out of reach of children unless under adult supervision, and its technical design should not be altered. If a damaged battery is encountered, direct contact should be avoided, and medical attention sought if skin or eye contact occurs. Non-rechargeable batteries should never be recharged, and unequally charged or different battery types should not be used together. After use, if the product will not be used for a long period, the batteries should be removed. The terminals must not be short-circuited.
The manual emphasizes the importance of keeping hands, face, hair, and clothes away from the blades and moving parts of the copter to prevent injury. This highlights the need for careful handling during pre-flight checks and after landing. The inclusion of a spare propeller suggests that propellers are consumable parts that may need replacement due to wear or damage. Users should regularly inspect the propeller for cracks or deformities and replace it if necessary to maintain optimal flight performance and safety. The wingstiffener, if removable or adjustable, should also be checked for proper installation and condition.
The instructions advise keeping the manual safe for future reference, indicating that it contains important information for ongoing maintenance and troubleshooting. When not in use, the aircraft and its components should be stored in a manner that prevents damage. The manual also includes battery recycling recommendations, urging users to dispose of used batteries responsibly at designated collection points, rather than with household waste, due to the hazardous substances they may contain (Cd, Hg, Pb). This reflects a commitment to environmental protection and proper waste management.
In summary, the WLtoys F959 Sky-king is a user-friendly RC airplane designed for enjoyable flight experiences. Its operation is facilitated by a comprehensive remote control with various adjustments for precise flight. Key to its safe and prolonged use are adherence to safety guidelines, responsible flight practices in suitable environments, and diligent maintenance, particularly concerning its Li-po battery and propeller.
General| Type | Glider |
|---|---|
| Wingspan | 750 mm |
| Weight | 58 g |
| Control Range | 200 meters |
| Transmitter | 2.4GHz |
| Channels | 3 |
| Material | EPO foam |
| Recommended Age | 14+ |
| Motor | Brushed |
