Miniature helicopter

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Generic toy miniature helicopter
Generic toy miniature helicopter

Miniature helicopters are remotely controller helicopters with a weight from hundred down to a few grams. Most ones in production are toys aimed at hobbyists and enthusiasts. In addition there are many companies making prototypes for military and security applications. Miniature helicopters are popular demonstrations for the latest technologies in miniaturization. [1]

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[edit] Miniaturization

Anatomy of a miniature helicopter
Anatomy of a miniature helicopter

Techniques involve reduction of weight and complexity compared to normal sized RC helicopters:

  • Use of densest power sources available (such as lithium polymer).
  • Battery capacity only enough for a short flight, typically a few minutes.
  • Miniature DC motors.
  • Electronics made of SMD components and ASIC chips.
  • Light plastics or carbon fiber fixtures and structure.
  • Infrared control instead of radio.
  • Auto-stabilization with Stabilizer bar
  • No servos, directional control only via variable power to the tail rotor.

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