Английская Википедия:Hoppi-Copter

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Шаблон:Short description

The Hoppi-Copter was a functional backpack helicopter developed by the American company Hoppi-Copters Inc. founded by Horace T. Pentecost in the 1940s.[1] The original Hoppi-Copter consisted of two contra-rotating rotors on a pole attached to a motorized backpack.[2] Although it was capable of flight, it was extremely hard to control.[3]

Later prototypes of the Hoppi-Copter included versions with the pilot in a sitting position, and were in effect miniature one-man helicopters of a more conventional design, though retaining the contra-rotating rotors and thus obviating a tail rotor.[1][4] Despite interest from the British Ministry of Supply in the 102 and 104 models,[5] none were adopted commercially.[3]

Variants

Pentecost HX-1 Hoppi-Copter (Hoppi-Copter 100)
original back-pack version.
Hoppi-Copter 101
equipped with a seat and landing gear, proved that more development was necessary.[6]
Hoppi-Copter 102
framed, with seat for pilot.[4]
Hoppi-Copter 103
as the 102, but lighter with a more powerful engine and slightly greater rotor diameter
Hoppi-Copter 104
as the 103, with even greater rotor diameter[5]
Hoppi-Copter Firefly

Specifications (Hoppi-Copter 102)

Шаблон:Aircraft specs

See also

References

Шаблон:Reflist

  1. 1,0 1,1 Шаблон:Cite web
  2. Шаблон:Citation
  3. 3,0 3,1 Шаблон:Cite web
  4. 4,0 4,1 Ошибка цитирования Неверный тег <ref>; для сносок JAWA48 не указан текст
  5. 5,0 5,1 Шаблон:Cite book
  6. Шаблон:Cite book