Inglês/Português
<< angle of approach indicator | angle of attack | angle of attack boundary >>
Back to: "A"angle of attack
- Definição1
- The acute angle between the chord line and the relative airflow. Often referred to as an angle of incidence - which it is not. The angle of attack should not be confused with the pitch angle or attitude of aircraft, which are angles relative to the horizontal while the angle of attack is in respect to the relative airflow. It is referred to also as alpha.
- Fonte1
- KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
- Definição2
- The acute angle between the direction of the relative wind and the chordline of an airfoil.
- Fonte2
- SCHAFER, Joe. Helicopter maintenance. Englewood: Jeppesen Sanderson, Inc., c2007. viii, 343 p.
- Definição3
- The angle between the airfoil's chord line and the relative wind.
- Fonte3
- FEDERAL AVIATION ADMINISTRATION. Rotorcraft flying handbook (FAA-H-8083-21). Washington, DC: FAA, 2000. Disponível em: http://www.faa.gov/library/manuals/aircraft/media/faa-h-8083 -21.pdf. Acesso em: 10 fev. 2012.
- Fonte4
- LESCEU, Xavier. AIRBUS. Update on stall procedure. 17thPerformance and Operations Conference in Dubai. May 2011.
- Nota adicional1
- Acronym in English: AOA.
- Contexto
- Generic Stall Recovery Procedure 2. a) Nose down pitch control…Apply until out of stall (nolonger have stall indications) b) Nose down pitch trim…….………………………………………..As needed Rationale: a) The priority is reducing the angle of attack. There have been numerous situations where flight crews did not prioritize this and instead prioritized power and maintaining altitude. This will also address autopilot induced full back trim. b) If the control column does not provide the needed response, stabilizer trim may be necessary. However, excessive use of trim can aggravate the condition, or may result in loss of control or in high structural loads. 3. Bank………………………….…………………………………….….Wings Level Rationale: This orientates the lift vector for recovery.
- Português
- ângulo de ataque
- Imagem
The black lines represent the flow of a fluid around a two-dimensional airfoil shape. The angle a is the angle of attack.
Fonte: http://en.wikipedia.org/wiki/File:Angle_of_attack.svg
