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reverse pitch
- Definição1
- Special ground-only setting available on some propellers and ducted propulsors, including several variable-pitch turbofans, in which blades accelerate air forwards, creating retrothrust proportional to engine power without change in direction of rotation.
- Fonte1
- GUNSTON, Bill. The Cambridge aerospace dictionary. Cambridge: Cambridge University, 2004. vii, 740 p. (Cambridge aerospace series.)
- Fonte2
- ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 15971-4: aeronáutica – vocabulário – parte 4: propulsão aeronáutica. Rio de Janeiro, 2011. 44 p.
- Fonte3
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Annex 6 to the Convention on International Civil Aviation: operation of aircraft. Part I: international commercial air transport: aeroplanes. 9th ed. Montreal, 2010.
- Contexto
- Reverse pitch or reverse thrust are not used when establishing the landing distance using this method and field length factor. Ground fine pitch is used if the effective drag/weight ratio in the airborne part of the landing distance is not less satisfactory than that of conventional piston-engined aeroplane. Note: This does not mean that reverse pitch or reverse thrust, or use of ground fine pitch, are to be discouraged.
- Subárea1
- Aircraft
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