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A ground-adjustable propeller is a simple type of aircraft variable-pitch propeller where the blade angle can be adjusted between pre-set limits of fine and coarse pitch. As its name implies, a ground-adjustable propeller may be adjusted only when the aircraft is on the ground and when the engine is not running. To adjust the propeller, the blades are loosened in the hub, a new angle set and then the hub tightened.

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  • A ground-adjustable propeller is a simple type of aircraft variable-pitch propeller where the blade angle can be adjusted between pre-set limits of fine and coarse pitch. As its name implies, a ground-adjustable propeller may be adjusted only when the aircraft is on the ground and when the engine is not running. To adjust the propeller, the blades are loosened in the hub, a new angle set and then the hub tightened. Ground-adjustable propellers, which tend to be found on light aircraft and very light aircraft, are much cheaper and lighter in weight than in-flight-adjustable propellers. Although a ground-adjustable propeller is much less versatile than an in-flight-adjustable equivalent, nevertheless, compared to a fixed pitch propeller, a ground-adjustable propeller means that pitch changes can be made on the ground to optimise the aircraft for current payload and flying conditions. (en)
  • Uma hélice ajustável é um modelo simples de hélice de passo variável, onde o ângulo da pá pode ser ajustado em limites predeterminados. Este tipo de hélice pode ser ajustado apenas quando a aeronave está em solo e com o motor desligado. Para ajustar a hélice, as pás são desapertadas do cubo e então um novo ângulo de pá pode ser apertado. Hélices ajustáveis são normalmente encontradas em aeronaves leves e ultraleves, sendo muito mais baratas e leves em peso do que hélices de passo variável. Apesar de ser muito menos versátil do que as hélices de passo variável, diferente de uma hélice fixa, pode ser otimizada para o peso e condições de voo atuais da aeronave. (pt)
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  • A ground-adjustable propeller is a simple type of aircraft variable-pitch propeller where the blade angle can be adjusted between pre-set limits of fine and coarse pitch. As its name implies, a ground-adjustable propeller may be adjusted only when the aircraft is on the ground and when the engine is not running. To adjust the propeller, the blades are loosened in the hub, a new angle set and then the hub tightened. (en)
  • Uma hélice ajustável é um modelo simples de hélice de passo variável, onde o ângulo da pá pode ser ajustado em limites predeterminados. Este tipo de hélice pode ser ajustado apenas quando a aeronave está em solo e com o motor desligado. Para ajustar a hélice, as pás são desapertadas do cubo e então um novo ângulo de pá pode ser apertado. (pt)
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  • Ground-adjustable propeller (en)
  • Hélice ajustável (pt)
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