<< longitudinal axis | longitudinal stability | loss of control in flight >>
Back to: "L"
longitudinal stability
- Definição1
- Stability about the lateral axis. A desirable characteristic of an airplane whereby it tends to return to its trimmed angle of attack after displacement.
- Fonte1
- FEDERAL AVIATION ADMINISTRATION. Aircraft flying handbook. Washington, 2004. Disponível em: http://www.faa.gov/library/manuals/aircraft/media/FAA-H-8083-5.pdf. Acesso em: 09 maio 2012.
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Training manual. Part D-3: flight operations officers/flight dispatchers. 2nd ed. Montreal, 1998. (Doc. 7192-AN/857 Part D-3)
- Nota adicional1
- A horizontal stabilizer helps in longitudinal stability, with its efficiency greater the further it is from the center of gravity. It is also more efficient at higher airspeeds because lift is proportional to the square of the airspeed. Since the speed of a gyroplane is not very high, manufacturers can achieve the desired stability by varying the size of the horizontal stabilizer, chang- ing the distance it is from the center of gravity, or by placing it in the propeller slipstream.
- Nota adicional2
- Some aspects that might adversely affect longitudinal stability are weight and balance, airspeed, and abrupt aircraft control inputs.
- Contexto
- The trainee is expected to demonstrate adequate knowledge of load planning, calcu- lation of payload, including the optimum use of available payload space, loadsheet preparation, aircraft balance and longitudinal stability, calculation of centre of gravity, structural aspects of aircraft loading, and the issuing of loading instructions within laid- down restrictions and limitations, including those imposed by dangerous goods considerations.
- Subárea1
- Piloting
- Related Term
- stability
- Português
- estabilidade longitudinal