Walkera HM4#(2.4G) Compact RTF 4CH Helicopter  [HM4#(2.4G)]

Walkera RC Helicopter HM 4# 2.4G 4 CH Channel Set RTF
Price:
NZD$220.52
Brand:
Walkera
Model:
HM4#(2.4G)
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alt="Walkera RC Helicopter HM 4# 2.4G 4 CH Channel Set RTF" title="Walkera RC Helicopter HM 4# 2.4G 4 CH Channel Set RTF"
alt="Walkera RC Helicopter HM 4# 2.4G 4 CH Channel Set RTF" title="Walkera RC Helicopter HM 4# 2.4G 4 CH Channel Set RTF"
alt="Walkera RC Helicopter HM 4# 2.4G 4 CH Channel Set RTF" title="Walkera RC Helicopter HM 4# 2.4G 4 CH Channel Set RTF"
alt="Walkera RC Helicopter HM 4# 2.4G 4 CH Channel Set RTF" title="Walkera RC Helicopter HM 4# 2.4G 4 CH Channel Set RTF"

Compact RC Flight with Walkera HM4#(2.4G)

The Walkera HM4#(2.4G) RC Helicopter offers a compact platform that is easy to manage and quick to set up. It suits a range of pilots from those starting out to flyers who want a small, responsive heli for practice sessions.

Compact 90-Degree Swash Design

This model features a tight 90-degree swashplate that keeps mechanical linkages simple and durable. Quality servos improve cyclic and collective response, while the lightweight total of 267g including battery helps with steady flight and nimble control.

Interference-Free Group Flying

Built with a 2.4G transmitter and receiver arrangement, the Walkera HM4#(2.4G) supports reliable pairing and lets many pilots fly together without signal clashes. That makes it practical for club meetups and fun fly events.

Powertrain and Endurance

The drive system uses a 370SH motor paired to a 7.4V 800mAh Li-Po pack, delivering reliable thrust and predictable throttle response. Typical airborne time is about 10 to 12 minutes under normal conditions.

Specifications

  • All-up Weight: 267g (Battery included)
  • Servo: Weight 9.1g / Speed 0.12sec/60°(4.8V) / Torque 1.1kgf.cm / Dimension 22.5*11.8*27mm
  • Receiver: RX-2421
  • Gyro: Built-in
  • Battery: 7.4V 800mAh Li-Po
  • Transmitter: WK-2401
  • Tail Rotor Diameter: 146 mm
  • Main Rotor Diameter: 485 mm
  • Overall Length: 480 mm
  • Tail Motor: 1220FE33
  • Drive Motor: 370SH

For a compact RTF helicopter the Walkera HM4#(2.4G) balances straightforward mechanics with capable electronics, making it a solid pick for pilots honing their rotor skills.

Binding uses standard 2.4G pairing procedures. Follow the transmitter and receiver steps in the manual and confirm trim centring before first flight.
Upgrading to faster or higher torque servos is possible but check the servo dimensions and connector type to ensure fit and compatibility with the stock linkages.
Inspect blades, linkages and the swashplate for wear after each session. Tighten loose screws and remove debris to keep flight characteristics consistent.
Yes, flying in windy conditions or performing aggressive maneuvers increases power draw and can reduce flight time below the typical 10 to 12 minute range.
Carry spare main and tail blades, a replacement tail rotor, and a small toolkit for quick repairs. Having an extra charged battery is also recommended.

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