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Walkera 4F200LM (Silver) Flybarless Helicopter with WK-2603pro

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The CNC-machined three-blade main rotor structure is composed of metal blade holder, metal rotor head and metal swashplate

Three-blade tail rotor structure with CNC-machined technology

Carbon fiber blades feature outstanding roughness and rigidity, which are suitable for aerobatic flight performance

3900KV brushless motor offers highly efficient power drive

RX-2618V receiver integrates together receiving circuit and flybarless control system. Convenient mini knobs for functional adjustments of flybarless control system are displayed on the surface of RX-2618V, which are used to

WK-2603 transmitter is equipped as a standard. Certainly, the more professional WK-2801 PRO is also optional



1). Main Rotor Dia. : 436mm
2). Tail Rotor Dia. : 122mm
3). Overall Length: 448mm
4). Drive Motor: WK-WS-21-004
5). ESC: WK-WST-30A-1
6). Transmitter: WK-2603
7). GYRO:Three-axis
8). Battery: 7.4V 1500mAh Li-Po
9). Weight: 410g (Battery included)


1). Simulated three-blade structure takes advantage of high efficiency and steady flight.
2). 3-axis controlled balance system provides accurate flight location.
3). High performance brushless motor absolutely features both longevity and power.
4). 2.4G Frequency-Hopping Spread Spectrum technology automatically assigns ID code with strong anti-jamming and high accuracy.


1). Encoder: 6 channel micro computer system
2). Frequency: 2.4G spread spectrum
3). Outpower: ≤10mW
4). Current drain: ≤120mW
5). Power source: 1.2VX8 NiCd (9.6V600mAh) or 1.5VX8 AA dry batteries
6). Output pulse: 1050 – 1850 (Neutral at 1500)

1). LCD menu features easy understanding and simple setting.
2). Offers the functions of exponent, gyro gain and mixing ratio adjustment.
3). Configuration design complies with ergonomics.
4). The unique Height-Limit mode is a safe system specially tailored for the beginners.
5). WK-2603 owns both 6- and 4-channel modes and is completely compatible with all the helicopters radio-controlled by WK-2401/WK-2402. A new age begins, of one radio for multi helicopters.

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