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A backpack helicopter is a helicopter motor and rotor and controls assembly that can be strapped to a person's back, so they can walk about on the ground wearing it, and can use it to fly. It uses a harness like a parachute harness and should have a strap between the legs (so the pilot does not fall out of the harness during flight). Some designs may use a ducted fan design to increase upward thrust. Several inventors have tried to make backpack helicopters, with mixed results. Typically, a backpack helicopter differs from a conventional helicopter in two main ways:

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  • Kleinsthubschrauber (de)
  • Backpack helicopter (en)
  • バックパック・ヘリコプター (ja)
  • Mochila-helicóptero (pt)
  • Ранец-вертолёт (ru)
rdfs:comment
  • Als Kleinsthubschrauber werden Hubschrauber bezeichnet, die dazu geeignet sind, lediglich eine Person ohne weitere Zusatzlasten zu transportieren. In der Literatur werden meist auch Kleinsttragschrauber zu dieser Kategorie gezählt. (de)
  • バックパック・ヘリコプター(英語: Backpack helicopter)は、ヘリコプターのモーターとローターであり、人の背中にストラップで固定できるコントロールアセンブリ。足の自由が利くので、パイロットはそれを身に着けたまま地上を歩き回ることもでき、そのまま飛行することもできる。パラシュートに使うようなハーネスを使用し、脚の間にストラップが必要である(パイロットが飛行中にハーネスから脱落しないようにするため)。一部の設計では、ダクテッドファンを使用して上向きの推力を増加させるものもある。何人かの発明者がバックパック・ヘリコプターを作ろうとしたが、結果はまちまちであった。 (ja)
  • Ранец-вертолёт — персональный летательный аппарат, состоящий из вертолётного винта, двигателя и крепления, которым прикрепляется к пилоту. В настоящее время это транспортное средство находится в стадии экспериментирования, но тем не менее, уже было создано несколько прототипов такого ранца. В настоящее время для ранца-вертолёта используются топливные двигатели, которые в перспективе могут быть заменены на электрические двигатели (это зависит от того насколько быстро развитие технологий сможет сократить размеры и вес аккумуляторов без уменьшения их электроёмкости). (ru)
  • A backpack helicopter is a helicopter motor and rotor and controls assembly that can be strapped to a person's back, so they can walk about on the ground wearing it, and can use it to fly. It uses a harness like a parachute harness and should have a strap between the legs (so the pilot does not fall out of the harness during flight). Some designs may use a ducted fan design to increase upward thrust. Several inventors have tried to make backpack helicopters, with mixed results. Typically, a backpack helicopter differs from a conventional helicopter in two main ways: (en)
  • Uma mochila-helicóptero é um equipamento que consiste em um motor, rotor e dispositivos de controle embutidos numa mochila, de modo que o usuário possa caminhar no solo o carregando em suas costas e levantar voo quando quiser. Seu arnês, assim como os arneses dos paraquedas, deve possuir um cruzamento passando por entre as pernas, para evitar que o piloto não se desprenda do equipamento durante o voo. Alguns modelos podem utilizar um para aumentar o empuxo. Vários inventores tentaram fabricar mochilas-helicópterosss, com resultados variados. (pt)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Aa_helibackpack.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Pentecost_Backpack_Helicopter.jpg
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  • A backpack helicopter is a helicopter motor and rotor and controls assembly that can be strapped to a person's back, so they can walk about on the ground wearing it, and can use it to fly. It uses a harness like a parachute harness and should have a strap between the legs (so the pilot does not fall out of the harness during flight). Some designs may use a ducted fan design to increase upward thrust. Several inventors have tried to make backpack helicopters, with mixed results. Typically, a backpack helicopter differs from a conventional helicopter in two main ways: First, there is no tail rotor, and the main rotors are contra-rotating. Yaw is controlled by fine adjustment of a differential gear in the rotor drive transmission. When one rotor is adjusted to spin slightly faster than the other, it induces yaw (turning motion). Second, the rotors are fixed pitch, which assists with simplicity; this means, however, that in the event of engine failure autorotation is impossible. Usually, a ballistic parachute would be incorporated for safety. An edition of Popular Science magazine in 1969 featured a backpack helicopter that used small jet engines in a tip jet configuration instead of contra-rotating rotors. This design could function in autorotation. Related are devices like a backpack helicopter which also include a seat and leg supports, which are small, open-topped helicopters. In theory, a helicopter would be more efficient than a rocket-powered jetpack, possessing a greater specific impulse, and being more suited to hovering, due to the lower velocities of the propelled gases. Australian electric company CopterPack had developed "an electric backpack helicopter with a self-levelling autopilot", and released test videos in June 2021. However, the device consists of two rotors with diameters around 3 feet (0.91 m) connected via carbon fiber tubes to a backpack with battery packs, and a pair of armrests with hand controls on them. Later video analysis revealed operator and equipment were at the end of a drop cable that was edited out using post-production software. (en)
  • Als Kleinsthubschrauber werden Hubschrauber bezeichnet, die dazu geeignet sind, lediglich eine Person ohne weitere Zusatzlasten zu transportieren. In der Literatur werden meist auch Kleinsttragschrauber zu dieser Kategorie gezählt. (de)
  • バックパック・ヘリコプター(英語: Backpack helicopter)は、ヘリコプターのモーターとローターであり、人の背中にストラップで固定できるコントロールアセンブリ。足の自由が利くので、パイロットはそれを身に着けたまま地上を歩き回ることもでき、そのまま飛行することもできる。パラシュートに使うようなハーネスを使用し、脚の間にストラップが必要である(パイロットが飛行中にハーネスから脱落しないようにするため)。一部の設計では、ダクテッドファンを使用して上向きの推力を増加させるものもある。何人かの発明者がバックパック・ヘリコプターを作ろうとしたが、結果はまちまちであった。 (ja)
  • Uma mochila-helicóptero é um equipamento que consiste em um motor, rotor e dispositivos de controle embutidos numa mochila, de modo que o usuário possa caminhar no solo o carregando em suas costas e levantar voo quando quiser. Seu arnês, assim como os arneses dos paraquedas, deve possuir um cruzamento passando por entre as pernas, para evitar que o piloto não se desprenda do equipamento durante o voo. Alguns modelos podem utilizar um para aumentar o empuxo. Vários inventores tentaram fabricar mochilas-helicópterosss, com resultados variados. Normalmente, uma mochila-helicóptero difere de um helicóptero tradicional em dois aspectos. Primeiro, não há rotor de cauda, e os principais rotores são contrarrotatórios. A guinada é controlada pelo ajuste suave de um motor diferencial na direção de transmissão do rotor. Quando um rotor é ajustado para girar ligeiramente mais rápido que o outro, tem-se a indução à guinada, ou movimento rotatório. Segundo, os rotores são pinos fixos para fins de simplicidade, mas isto implica que em casos de falência do rotor, a autorrotação é impossível. Normalmente, um paraquedas balístico é embutido para garantir a segurança. Uma publicação centífica popular em 1969 descreveu uma mochila-helicóptero que utilizava pequenos motores a jato na ponta dos rotores ao invés de rotores contrarrotatórios. Este design permitiria a autorrotação. Um dispositivo relacionado é a mochila-helicóptero que inclui um assento e suporte para as pernas o que torna este tipo de aparelhos um verdadeiro helicóptero aberto em pequena escala. Teoricamente, um helicóptero seria mais eficiente que um propulsor a jato, possuindo maior impulso específico, e sendo mais adequado para pairar no ar devido à menor velocidade dos gases propelidos. (pt)
  • Ранец-вертолёт — персональный летательный аппарат, состоящий из вертолётного винта, двигателя и крепления, которым прикрепляется к пилоту. В настоящее время это транспортное средство находится в стадии экспериментирования, но тем не менее, уже было создано несколько прототипов такого ранца. В настоящее время для ранца-вертолёта используются топливные двигатели, которые в перспективе могут быть заменены на электрические двигатели (это зависит от того насколько быстро развитие технологий сможет сократить размеры и вес аккумуляторов без уменьшения их электроёмкости). (ru)
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