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2. Quadcopter - Wikipedia

   en.wikipedia.org/wiki/Quadcopter

   For small-scale quadcopters, this makes the vehicles safer for close interaction. It is also possible to fit quadcopters with guards that enclose the rotors, further reducing the potential for damage. [2] However, as size increases, fixed propeller quadcopters develop disadvantages relative to conventional helicopters.

3. Helicron (automobile) - Wikipedia

   en.wikipedia.org/wiki/Helicron_(automobile)

   The Helicron is an open-wheel car that used a propeller as its drive. The Helicron was abandoned in the late 1930s, but was restored after its barn find in 2000. [1] In the same year, the car was permitted by the French government to drive on the French roads. [2] The car currently resides in the Lane Motor Museum and is on display, as a ...

4. Pusher configuration - Wikipedia

   en.wikipedia.org/wiki/Pusher_configuration

   1871 Planophore A Farman MF.11, showing the classic Farman configuration with engine between tail booms Buhl A-1 Autogyro, the first pusher autogyro The post-WWII Convair B-36 was unusual in its size, era, number of engines, and combining both propeller and jet propulsion, with six radial piston and four jet engines Typical of many UAVs, the General Atomics MQ-9 Reaper has a propeller at the ...

5. Inrunner - Wikipedia

   en.wikipedia.org/wiki/Inrunner

   A brushless, geared inrunner motor in a quadcopter. The term inrunner refers to an electric motor where the rotor (runner) is inside the stator. The term is in particular used for brushless motors to differentiate them from outrunners that have their rotor outside the stator. The vast majority of electric motors are inrunners. [citation needed]

6. List of pusher aircraft by configuration and date - Wikipedia

   en.wikipedia.org/wiki/List_of_pusher_aircraft_by...

   A pusher aircraft is a type of aircraft using propellers placed behind the engines. Pushers may be classified according to lifting surfaces layout (conventional or 3 surface, canard, joined wing, tailless and rotorcraft) as well as engine/propeller location and drive. For historical interest, pusher aircraft are also classified by date.

7. Blackbird (wind-powered vehicle) - Wikipedia

   en.wikipedia.org/wiki/Blackbird_(wind-powered...

   Rotor-powered vehicles are wind-powered vehicles that use rotors—instead of sails—which may have a shroud around them or constitute an unducted propeller, and which may adjust orientation to face the apparent wind. The rotor may be connected via a drive train to wheels or to a generator that provides electrical power to electric motors that ...

8. First-person view (radio control) - Wikipedia

   en.wikipedia.org/wiki/First-person_view_(radio...

   Multicopters, especially quadcopters, have fast been gaining popularity as agile camera platforms that can take high-quality video while hovering and maneuvering in tight spaces. This increase in popularity has come about mainly due to new manufacturing techniques and a reduction in component costs, making this side of the FPV hobby more ...

9. List of experimental aircraft - Wikipedia

   en.wikipedia.org/wiki/List_of_experimental_aircraft

   Convair XFY Pogo 1954 – Fixed propeller VTOL; Curtiss-Wright VZ-7 1958 – Quadcopter; Curtiss-Wright X-100 1963 – Tilt rotor VTOL (developed into X-200 and X-19) Custer Channel Wings 1953 – Blown half-barrel wings; Doak VZ-4 1958 – Tilt-fan VTOL; Douglas D-558-I Skystreak 1947 – Supersonic research; Douglas D-558-II Skyrocket 1948 ...