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2. Radio-controlled helicopter - Wikipedia

   en.wikipedia.org/wiki/Radio-controlled_helicopter

   However, in the last 10 years, electric powered helicopters have matured to a point where power and flight times are better, but typically not as long as glow fuel helicopters. There have been two main types of systems to control the main rotors, mechanical mixing and electronic cyclic/collective pitch mixing (eCCPM).

3. Picoo Z - Wikipedia

   en.wikipedia.org/wiki/Picoo_Z

   The helicopter is recharged by plugging it into the controller. Charging generally takes 10–15 minutes and will give the Picoo Z a flight duration anywhere between five and seven minutes. Range is limited due to the use of infrared instead of the more common radio frequency remote control. Because of this, ambient light may also have varying ...

4. Radio-controlled aircraft - Wikipedia

   en.wikipedia.org/wiki/Radio-controlled_aircraft

   Some radio-controlled helicopters have photo or video cameras installed and are used for aerial imaging or surveillance. Newer "3d" radio-control helicopters can fly inverted with the advent of advanced swash heads, and servo linkage that enables the pilot to immediately reverse the pitch of the blades, creating a reverse in thrust.

5. List of unmanned aerial vehicles - Wikipedia

   en.wikipedia.org/wiki/List_of_unmanned_aerial...

   Yakovlev ALBATROS-EXPERT — vertical start and landing remote-piloted vehicle (RPV) intended for television (infra-red vision) air reconnaissance of the underlying surface in the day-time and at night, EXPERT is the integrated system comprising three RPV, ground control station, launcher and servicing equipment. [236]

6. Helicopter flight controls - Wikipedia

   en.wikipedia.org/wiki/Helicopter_flight_controls

   A typical helicopter has three flight control inputs: the cyclic stick, the collective lever, and the anti-torque pedals. [2] Depending on the complexity of the helicopter, the cyclic and collective may be linked together by a mixing unit , a mechanical or hydraulic device that combines the inputs from both and then sends along the "mixed ...

7. Intermeshing-rotor helicopter - Wikipedia

   en.wikipedia.org/wiki/Intermeshing-rotor_helicopter

   Unmanned, remote control or optionally piloted variant An intermeshing-rotor helicopter (or synchropter ) is a helicopter with a set of two main rotors turning in opposite directions, with each rotor mast mounted with a slight angle to the other, in a transversely symmetrical manner, so that the blades intermesh without colliding.