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  2. List of human-powered aircraft - Wikipedia

    en.wikipedia.org/wiki/List_of_human-powered_aircraft

    Zaschka Human-Power Aircraft: Germany: 1934: Engelbert Zaschka: Zephyrus β: Japan: 1997: Ochanomizu Human-powered aircraft study group: Japanese female record set under the FAI rules, 1.004 km in 3 min 3 s. (16 Nov. 1997). Piloted by Chihiro Muraoka – current Japanese female records. Zinno Olympian ZB-1: USA: 1976: Lt.Col. Joe Zinno, USAF (Ret.)

  3. Cycloconverter - Wikipedia

    en.wikipedia.org/wiki/Cycloconverter

    The competitive power rating span of standardized CCVs ranges from few megawatts up to many tens of megawatts. CCVs are used for driving mine hoists, rolling mill main motors, [4] ball mills for ore processing, cement kilns, ship propulsion systems, [5] slip power recovery wound-rotor induction motors (i.e., Scherbius drives) and aircraft 400 Hz power generation. [6]

  4. Frequency changer - Wikipedia

    en.wikipedia.org/wiki/Frequency_changer

    Often airplanes use 400 Hz power so a 50 Hz or 60 Hz to 400 Hz frequency converter is needed for use in the ground power unit used to power the airplane while it is on the ground. Airlines might also utilize the converters to provide in-air wall current to passengers for use with laptops and the like.

  5. Human-powered aircraft - Wikipedia

    en.wikipedia.org/wiki/Human-powered_aircraft

    A human-powered aircraft (HPA) is an aircraft belonging to the class of vehicles known as human-powered transport.. As its name suggests, HPAs have the pilot not only steer, but power the aircraft (usually propeller-driven) by means of a system similar to a bicycle or tricycle: a pair of pedals, moved by the pilot's feet that turns a gear, which then moves a bicycle chain, which then rotates a ...

  6. MIL-STD-704 - Wikipedia

    en.wikipedia.org/wiki/MIL-STD-704

    MIL-STD-704 Aircraft Electrical Power Characteristics is a United States Military Standard that defines a standardized power interface between a military aircraft and its equipment and carriage stores, covering such topics as voltage, frequency, phase, power factor, ripple, maximum current, electrical noise and abnormal conditions (overvoltage and undervoltage), for both AC and DC systems.

  7. Electric power conversion - Wikipedia

    en.wikipedia.org/wiki/Electric_power_conversion

    Aircraft often use 400 Hz power internally, so 50 Hz or 60 Hz to 400 Hz frequency conversion is needed for use in the ground power unit used to power the airplane while it is on the ground. Conversely, internal 400 Hz internal power may be converted to 50 Hz or 60 Hz for convenience power outlets available to passengers during flight.

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