About: Stick pusher

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A stick pusher is a device installed in some fixed-wing aircraft to prevent the aircraft from entering an aerodynamic stall. Some large fixed-wing aircraft display poor post-stall handling characteristics or are vulnerable to deep stall. To prevent such an aircraft approaching the stall the aircraft designer may install a hydraulic or electro-mechanical device that pushes forward on the elevator control system whenever the aircraft's angle of attack reaches the pre-determined value, and then ceases to push when the angle of attack falls sufficiently. A system for this purpose is known as a stick pusher.

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  • Sebuah stick pusher atau tongkat pendorong adalah sebuah perangkat yang dipasang di beberapa pesawat sayap tetap untuk mencegah pesawat memasuki sebuah stall aerodinamis. Beberapa karakteristik pesawat sayap tetap rentan terhadap stall yang mendalam. Untuk mencegah pesawat tersebut mendekati stall, desainer pesawat terbang dapat menginstal perangkat hidraulis atau elektro-mekanis pada sistem kontrol lift setiap kali sudut pesawat serangan mencapai nilai yang telah ditentukan, dan kemudian berhenti untuk mendorong ketika sudut serangan. Sebuah sistem untuk tujuan ini dikenal sebagai stick pusher pendorong tongkat. (in)
  • A stick pusher is a device installed in some fixed-wing aircraft to prevent the aircraft from entering an aerodynamic stall. Some large fixed-wing aircraft display poor post-stall handling characteristics or are vulnerable to deep stall. To prevent such an aircraft approaching the stall the aircraft designer may install a hydraulic or electro-mechanical device that pushes forward on the elevator control system whenever the aircraft's angle of attack reaches the pre-determined value, and then ceases to push when the angle of attack falls sufficiently. A system for this purpose is known as a stick pusher. The safety requirements applicable to fixed-wing aircraft in the transport category, and also to many military aircraft, are relatively demanding in the area of pre-stall handling qualities and stall recovery. Some of these aircraft are unable to comply with these safety requirements relying solely on the natural aerodynamic qualities of the aircraft. In order to comply with regulatory requirements, aircraft designers may opt to install a system that will constantly monitor the critical parameters and will automatically activate to reduce the angle of attack when necessary to avoid a stall. The critical parameters include the angle of attack, airspeed, wing flap setting and load factor. Action by the pilot is not required to recognise the problem or react to it. (en)
  • Lo Stick pusher, spingi barra è un dispositivo oleodinamico (o servo meccanico) che spinge in avanti il comando dell'equilibratore quando l'angolo di attacco raggiunge predeterminati valori. (it)
  • Stick pusher é um dispositivo instalado em algumas aeronaves de asa fixa para evitar que esta entre em um estol aerodinâmico. Algumas grandes aeronaves de asa fixa possuem características de controlabilidade ruins após um estol ou são vulneráveis a um estol profundo. Para prevenir que a aeronave chegue ao estol, o fabricante pode instalar um dispositivo hidráulico ou eletro-mecânico que empurra o sistema de controle do profundor para frente sempre que o ângulo de ataque da aeronave atinge um valor pré-determinado e então pára de empurrar quando este ângulo de ataque diminuir suficientemente. Um sistema para este propósito é conhecido como stick pusher. Os requisitos de segurança operacional aplicável a aeronaves de asa fixa na categoria "transporte" e também para muitas aeronaves militares, são muito exigentes nas qualidades de manobrabilidade em pré-estol e na recuperação de um estol. Algumas destas aeronaves não são capazes de cumprir os requisitos unicamente com as qualidades aerodinâmicas "naturas", dependendo então de um sistema que monitore constantemente os parâmetros críticos e ative automaticamente para reduzir o ângulo de ataque quando necessário para evitar um estol. Os parâmetros críticos incluem o ângulo de ataque, velocidade em relação ao ar, seleção de flap e carga alar. Não é requerida nenhuma ação do piloto para reconhecer o problema ou reagir a ele. Os fabricantes de aeronave que instalam estes sistemas reconhecem que há um risco deste ser acionado erroneamente quando não desejado. Desta forma, eles devem também fornecer aos tripulantes uma provisão para lidar com a ativação indesejada do stick pusher. Em algumas aeronaves equipadas com esse sistema, o stick pusher pode ser contrariado pelo piloto. Em outras, o sistema pode ser manualmente desativado por ele. O stick pusher não deve ser confundido com stick shaker, um dispositivo que avisa ao piloto de um estol iminente através de vibrações rápidas e ruidosas do manche (o "stick"). (pt)
  • Толка́тель штурва́льной коло́нки — механизм отклонения ручки управления самолётом или штурвала в случае критического режима полёта. Сопровождается звуковым предупреждением и вибротряской органа ручного управления. Устанавливается в крупных самолётах, особенно с . Толкатель штурвала является компонентом системы защиты самолёта от сваливания. Бортовой компьютер получает входные данные от датчиков углов атаки этой системы. При вхождении самолёта в сваливание компьютер активирует тряску штурвала, подаёт звуковой сигнал для пилота и включает механизм активной защиты, когда активируется мотор, отдающий штурвальную колонку на пикирование от пилота, таким образом, снижая угол атаки и помогая предотвратить опрокидывание. (ru)
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  • Sebuah stick pusher atau tongkat pendorong adalah sebuah perangkat yang dipasang di beberapa pesawat sayap tetap untuk mencegah pesawat memasuki sebuah stall aerodinamis. Beberapa karakteristik pesawat sayap tetap rentan terhadap stall yang mendalam. Untuk mencegah pesawat tersebut mendekati stall, desainer pesawat terbang dapat menginstal perangkat hidraulis atau elektro-mekanis pada sistem kontrol lift setiap kali sudut pesawat serangan mencapai nilai yang telah ditentukan, dan kemudian berhenti untuk mendorong ketika sudut serangan. Sebuah sistem untuk tujuan ini dikenal sebagai stick pusher pendorong tongkat. (in)
  • Lo Stick pusher, spingi barra è un dispositivo oleodinamico (o servo meccanico) che spinge in avanti il comando dell'equilibratore quando l'angolo di attacco raggiunge predeterminati valori. (it)
  • A stick pusher is a device installed in some fixed-wing aircraft to prevent the aircraft from entering an aerodynamic stall. Some large fixed-wing aircraft display poor post-stall handling characteristics or are vulnerable to deep stall. To prevent such an aircraft approaching the stall the aircraft designer may install a hydraulic or electro-mechanical device that pushes forward on the elevator control system whenever the aircraft's angle of attack reaches the pre-determined value, and then ceases to push when the angle of attack falls sufficiently. A system for this purpose is known as a stick pusher. (en)
  • Толка́тель штурва́льной коло́нки — механизм отклонения ручки управления самолётом или штурвала в случае критического режима полёта. Сопровождается звуковым предупреждением и вибротряской органа ручного управления. Устанавливается в крупных самолётах, особенно с . (ru)
  • Stick pusher é um dispositivo instalado em algumas aeronaves de asa fixa para evitar que esta entre em um estol aerodinâmico. Algumas grandes aeronaves de asa fixa possuem características de controlabilidade ruins após um estol ou são vulneráveis a um estol profundo. Para prevenir que a aeronave chegue ao estol, o fabricante pode instalar um dispositivo hidráulico ou eletro-mecânico que empurra o sistema de controle do profundor para frente sempre que o ângulo de ataque da aeronave atinge um valor pré-determinado e então pára de empurrar quando este ângulo de ataque diminuir suficientemente. Um sistema para este propósito é conhecido como stick pusher. (pt)
rdfs:label
  • Stick pusher (in)
  • Stick pusher (it)
  • Stick pusher (pt)
  • Stick pusher (en)
  • Толкатель штурвальной колонки (ru)
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