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by Marshall Brain

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Brain, Marshall.  "How Gyroscopes Work"  01 April 2000.  HowStuffWorks.com. <http://science.howstuffworks.com/gyroscope.htm>  09 February 2012.
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  • 4.5 Channels Helicopter  with Gyroscope
    4.5 Channels Helicopter with Gyroscope

    Unlike other RC helicopters this 4.5-Channel RC Helicopter with gyroscope hovers like the real thing. Constructed of durable metal it features a coaxial rotor and a single rear rotor for very precise movement. The 4.5-Channel RC Helicopter with gyroscope includes one spare tail rotor and two spare main rotors. Flying time: Around 8 mins RF Remote control distance: 40 meters by radio 6 AA batteries required. Batteries not included. 27MHZ/40MHZ with Gyroscope achieving the function of going up down forward back left right hovering and turning around Flashing light

    $34.99

  • 3 Channel Helicopter with Gyroscope
    3 Channel Helicopter with Gyroscope

    A beginner helicopter like the 3-channel RC Helicopter with Gyroscope never looked so cool. The RC helicopter flies for up to 6 minutes. Constructed of durable metal it features 3 channels a gyro stabilizer and dual rotors. The 3-channel RC Helicopter with Gyroscope also includes two spare main rotors. Recharging time: Around 20 mins via controller Remote control distance: 12 meters by infrared ray simultaneous multi-play mode up to 3 people

    $24.99

  • The New Syma 3 Channel S107 Mini Indoor Co-Axial Metal Body Frame &amp; Built-in Gyroscope Helicopter (Yellow)
    The New Syma 3 Channel S107 Mini Indoor Co-Axial Metal Body Frame & Built-in Gyroscope Helicopter (Yellow)

    Feature: Miniature size & light weight. Super wide infrared control miniature design for indoor flying 19cm long and weighing an incredible 34 grams Controlled by 32-level high precision speed. Auto stable, rotor blade system for steady lifting-up 3-Channel Helicopter movement forward / backward / up / down / left / right High tenacity propeller POWERED BY 2 SOLID MOTORS WITH A 3RD MOTOR IN THE TAIL ROTOR High capability, dynamical Li-Poly battery. Can be recharged through the transmitter provided Charging and power indicator Controlled by digital technology. Infra red control system Tri-band Technology. Nonintervention used 3 bands High efficiency, driving motor and surge power Speculation: Weight: 34g size: 220x38x98(mm) Dimensions: main rotor diameter 190mm Helicopter battery: 3.7v Rechargeable lithium polymer battery Charging Time: 30-35 minutes Flight Duration: 6-8 minutes Frequency: Infrared control system - bands A, B & C Control Specification: forward / backward / up / down / left / right Range: Up to 10m (30ft)   Included:   100% Brand New 1 x 3-Channel Radio Remote Control Helicopter 1 x Remote Control (not include 1.5v AA battery) 1 x Tail Blade 1x USB Cable

    $29.95

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