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Angle of attack may be negative or positive - it's simply the angle between the wing chord line and the oncoming airflow.
If it's positive then the aircraft will benefit from the lift that is provided, if it's negative then there is no lift (but there's still drag). This is a potentially dangerous situation, unless you wish your aircraft to descend.
What else can I help you with?
What is an angle of attack?
An angle of attack is the angle between the chord line of an airfoil and the airflow over it.
What is decalage on a bi-plane?
Decalage on a fixed wing Biplane aircraft is the angle difference between the upper and lower wings of a fixed wing Biplane aircraft, i.e. the acute angle contained between the chords of the wings in question.The decalage is said to be positive when the upper wing has a higher total angle-of incidence than the lower wing, and negative when its total angle of incidence is lower. Positive decalage results in greater lift from the upper wing than the lower wing, the difference increasing with the amount of decalage.Uncle Fudd
What is the difference between a flat roof and a pitched roof?
The angle, in comparison to "level".
Difference between an arrowhead and a kite in maths?
The difference is surely that an arrowhead has one reflex internal angle where a kite does not.
What is difference between electrical angle and mechanical angle?
Electrical angle is half of mechanical angle in unipolar electrical machines. In multipolar electrical machines, the relationship between the mechanical angle and electrical angle is Electrical angle = (P/2) x Mechanical angle where: P = Number of poles.
What is the difference between the angle of attack and angle of incidence?
Zero degrees.
What is difference between positive and negative rake angle?
The clear difference between positive and negative rake angles is that for the positive rake angle,the leading edge of the cutting tool is behind the perpendicular of the material to be cut.While the tool leading edge is ahead or beyond the perpendicular for the negative rake angle.
What is the difference between angle of incidence and angle if attack?
The angle of incidence is the angle between a reference line, usually the chord line of a wing, and the oncoming airflow or relative wind. In contrast, the angle of attack is the angle between the chord line of a wing and the direction of the resultant lift vector. While the angle of incidence is a fixed design feature of the aircraft, the angle of attack can vary during flight and is crucial for determining lift and stall conditions.
What is an angle of attack?
An angle of attack is the angle between the chord line of an airfoil and the airflow over it.
Induced angle of attack in simple terms?
it is the difference between local flow direction and free stream direction of atmospheric air
What is the difference between a complete angle and right angle?
The difference is 270 degrees.
What is the difference between positive and negative angles?
Essentially, none. Every negative angle can be made positive by adding 2*pi radians (or 360 degrees, or a multiple).
What is the angle between the airplanes wing and the direction of airflow called?
The angle between the airplane's wing and the direction of airflow is called the angle of attack. This angle is important for generating lift and controlling the aircraft's flight.
What is the difference between negative work and zero work and positive work done?
If the angle between the displacement and force applied is less than a right angle, then it is Positive Work done. If the angle between the displacement and the force applied is greater than a right angle then it is Negative Work done. If the displacement and force are at right angles, or either is zero, then it is Zero Work done.
In a circle what is the difference between a central angle and an arc?
In a circle what is the difference between a central angle and an arc?Read more: In_a_circle_what_is_the_difference_between_a_central_angle_and_an_arc
What is the difference between an angle and a right angle?
A right angle is a specific type of angle. It is 90 degrees.
What is the angle of attack on an airplane?
The angle of attack is an aerodynamic term which refers to the angle between the mean wing chord of the airfoil and the direction of airflow. This is different from the pitch angle of the aircraft in that the pitch angle refers to the aircrafts position in relation to the horizon, whereas angle of attack refers to the aircrafts angle in relation to airflow.
