Walkera HM4#3BDB Precision Micro Double Brushless 2.4GHz Metal Upgrade RTF Helicopter  [HM4#3BDB]

WALKERA 4#3B V3 Double Brushless 2.4Ghz Metal Upgrade RTF Helicopter
Price:
CAD$200.93
Brand:
Walkera
Model:
HM4#3BDB
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Next-level micro heli flight with the Walkera HM4#3BDB

The Walkera HM4#3BDB 4#3B V3 is a compact micro helicopter built for pilots who want responsive control and durable metal upgrades. With double brushless motors and a lightweight frame, it balances performance and toughness for close-quarters flying.

Radio and stability systems

Equipped with 2.4GHz control, the Walkera HM4#3BDB delivers reliable link quality and quick code pairing to cut down on interference. The integrated gyro stabilizes the model so you can focus on smooth inputs and tighter manoeuvres.

Built components for consistent flight

Key parts like the CNC-cut rotor head and the simplified 90-degree swashplate are engineered for repeatable precision. Combined with the WK-WS-12-003 main motor, the setup provides roughly 7 to 9 minutes of flight per charge under normal flying conditions.

Compact setup for skill development

With a 202 mm main rotor and total weight of just 48 grams, the Walkera HM4#3BDB feels nimble and forgiving. The 3.7V 400mAh Li-Po battery and the WK-2401 transmitter offer a straightforward package ideal for pilots refining hovering and basic 3D moves.

Specifications

  • Main Rotor Diameter: 202 mm
  • Tail Rotor Diameter: 48 mm
  • Overall Length: 213 mm
  • All-up Weight: 48g (Battery included)
  • Drive Motor: WK-WS-12-003
  • Tail Motor: WK-WS-10-001
  • Battery: 3.7V 400mAh Li-Po
  • Receiver: RX-2406B
  • Gyro: Built-in
  • Transmitter: WK-2401
  • Servo: Weight 3.5g; Speed 0.11sec/60°(4.8V); Torque 0.30kg/cm(4.8V); Dimensions 17.5 x 6.5 x 21.5 mm

The Walkera HM4#3BDB is a solid pick for hobby pilots who want a compact, dependable heli to practise precision flying and basic aerobatics.

Yes. The built-in gyro and stable 2.4GHz link make the Walkera HM4#3BDB approachable for new pilots learning hover and stick control.
Typical flight time is around 7 to 9 minutes depending on flying style and wind conditions.
You can fit similar-spec Li-Po packs that match the voltage and weight limits, but stick to recommended sizes to preserve balance and flight characteristics.
Yes. Common spares such as rotor heads, tail blades and motors are typically available through hobby dealers and parts sellers.

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