Define angle of attack?

Define angle of attack?
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1 Answer

Answer :

The angle between the chord line of an airfoil and the relative wind is defined as the angle of attack.
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Related questions

What is critical angle of attack and what will happen when it is exceeded?

Description : What is critical angle of attack and what will happen when it is exceeded?

Last Answer : The angle of attack which produces the maximum lift coefficient is called as the critical angle of attack. It is also called as the "stall angle of attack". At the critical angle of attack ... becomes more and more fully separated and the airfoil produces less coefficient of lift and will stall.

Tell something about differential and integral approach?

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Description : What do you mean by aerodynamics?

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What factors affect descent angle in a glide? a. Configuration and altitude b. Configuration and angle of attack c. Mass and altitude d. Mass and configuration

Description : What factors affect descent angle in a glide? a. Configuration and altitude b. Configuration and angle of attack c. Mass and altitude d. Mass and configuration

Last Answer : b. Configuration and angle of attack

What true airspeed and angle of attack should be used to generate the same amount of lift as altitude is increased? a. A higher true airspeed for any given angle of attack b. The same true airspeed and angle of attack c. A lower true airspeed and higher angle of attack d. A constant angle of attack and true airspeed

Description : What true airspeed and angle of attack should be used to generate the same amount of lift as altitude is increased? a. A higher true airspeed for any given angle of attack b. The same true ... c. A lower true airspeed and higher angle of attack d. A constant angle of attack and true airspeed

Last Answer : a. A higher true airspeed for any given angle of attack

To maintain altitude, what must be done as Indicated Airspeeed (IAS) is reduced? a. Decrease angle of attack to reduce the drag b. Increase angle of attack to maintain the correct lift force c. Deploy the speed brakes to increase drag d. Reduce thrust

Description : To maintain altitude, what must be done as Indicated Airspeeed (IAS) is reduced? a. Decrease angle of attack to reduce the drag b. Increase angle of attack to maintain the correct lift force c. Deploy the speed brakes to increase drag d. Reduce thrust

Last Answer : b. Increase angle of attack to maintain the correct lift force

What flight condition should be expected when an aircraft leaves ground effect? a. A decrease in parasite drag permitting a lower angle of attack b. An increase induced drag and a requirement for a higher angle of attack c. An increase in dynamic stability d. A decrease in induced drag requiring a smaller angle of attack

Description : What flight condition should be expected when an aircraft leaves ground effect? a. A decrease in parasite drag permitting a lower angle of attack b. An increase induced drag and a requirement ... increase in dynamic stability d. A decrease in induced drag requiring a smaller angle of attack

Last Answer : b. An increase induced drag and a requirement for a higher angle of attack

By changing the angle of attack of a wing, the pilot can control the aeroplane’s: a. Lift and airspeed, but not drag b. Lift, gross weight and drag c. Lift, airspeed and drag d. Lift and drag, but not airspeed

Description : By changing the angle of attack of a wing, the pilot can control the aeroplane’s: a. Lift and airspeed, but not drag b. Lift, gross weight and drag c. Lift, airspeed and drag d. Lift and drag, but not airspeed

Last Answer : c. Lift, airspeed and drag

Which stall has the greatest angle of attack? a. Low speed stall b. High speed stall (shock stall) c. Deep stall d. Accelerated stall

Description : Which stall has the greatest angle of attack? a. Low speed stall b. High speed stall (shock stall) c. Deep stall d. Accelerated stall

Last Answer : c. Deep stall

To recover from a spin, the elevators should be: a. Moved up to increase the angle of attack b. Moved down to reduce the angle of attack c. Set to neutral d. Allowed to float

Description : To recover from a spin, the elevators should be: a. Moved up to increase the angle of attack b. Moved down to reduce the angle of attack c. Set to neutral d. Allowed to float

Last Answer : b. Moved down to reduce the angle of attack

If the angle of attack is increased beyond the critical angle of attack, the wing will no longer produce sufficient lift to support the weight of the aircraft: a. Unless the airspeed is greater than the normal stall speed b. Regardless of airspeed or pitch attitude c. Unless the pitch attitude is on or below the natural horizon d. In which case, the control column should be pulled-back immediately

Description : If the angle of attack is increased beyond the critical angle of attack, the wing will no longer produce sufficient lift to support the weight of the aircraft: a. Unless the airspeed is greater ... below the natural horizon d. In which case, the control column should be pulled-back immediately

Last Answer : b. Regardless of airspeed or pitch attitude

Which statement is true relative to changing angle of attack? a. A decrease in angle of attack will increase pressure below the wing and decrease drag b. An increase in angle of attack will decrease pressure below the wing and decrease drag c. An increase in angle of attack will increase drag d. An increase in angle of attack will decrease the lift coefficient

Description : Which statement is true relative to changing angle of attack? a. A decrease in angle of attack will increase pressure below the wing and decrease drag b. An increase in angle of attack will ... of attack will increase drag d. An increase in angle of attack will decrease the lift coefficient

Last Answer : c. An increase in angle of attack will increase drag

The angle of attack of a fixed pitch propeller: a. Depends on forward speed only b. Depends on forward speed and engine rotational speed c. Depends on engine rotational speed only d. Is constant for a fixed pitch propeller

Description : The angle of attack of a fixed pitch propeller: a. Depends on forward speed only b. Depends on forward speed and engine rotational speed c. Depends on engine rotational speed only d. Is constant for a fixed pitch propeller

Last Answer : b. Depends on forward speed and engine rotational speed

What factors affect descent angle in a glide? a. Configuration and altitude b. Configuration and angle of attack c. Mass and altitude d. Mass and configuration

Description : What factors affect descent angle in a glide? a. Configuration and altitude b. Configuration and angle of attack c. Mass and altitude d. Mass and configuration

Last Answer : b. Configuration and angle of attack