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Roc Hobby Critical Mass ARTF w/o TX/RX/Batt.


The RocHobby Critical Mass has become one of our favourite planes. This plane not only looks fantastic but it a true joy to fly. We think you will enjoy the split flaps, servoless electric retracts, and great all around flight characteristics. Unlike many stock planes, this one is not underpowered and has decent vertical. The Critical Mass is very well mannered and capable of aerobatics that would leave lesser planes in the dust. This plane is made from EPO foam for maximum strength and durability. Speaking of durability, the split flaps have nylon hinges and the retracts have metal trunnions. So far the plane has handled everything we have thrown at it and the Critical Mass continues to fly without issue. It is one of the most durable and best-built planes we have flown lately. Like all RocHobby planes, this one is made by FMS.


  • Split flaps with nylon hinges
  • Servoless electric retracts with metal trunnions
  • EPO foam construction
  • Brushless motor, ESC and servos installed


  • Wingspan 1100mm / 43.3in
  • Length 918mm / 36.1in
  • Flying Weight 1090g
  • Power System 3536-KV750 brushless
  • Speed Control 35A, Integrated 4A SBEC, T Connector
  • Propeller / EDF 4 blade prop
  • Landing Gear Servoless electric retracts, metal trunnion
  • Servos 9g×6
  • Rudder Yes
  • Flaps Yes - split flaps
  • Ailerons Yes
  • Lights No
  • Foam Material EPO Foam

Required for Completion

  • Minimum 6 Channel Radio
  • 6 Channel Receiver
  • 3 Cell 11.1V 2200 mAh Li-Po Battery
  • Li-Po Battery Charger
  • AA TX Batteries

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£184.99 Each

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