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These are terms that aerospace engineers use to define the flight characteristics that is more associated with the Wing and not the airplane. The shape of a wing will produce different lift and drag for various flight conditions. One parameter is the Angle of Attack. This is the angle that the wing makes with the approaching air flow. A zero(0) Angle of Attack is when the nose of the wing is flying directly into the air flow. As the wing is turns the Nose up, this is a positive angle of attack and this generally results in an increase in Lift. Turning the wing in a nose DOWN is a negative angle of attack and reduces Lift or creates a negative Lift. If the Angle of Attack of the wing gets too large, the wing will stall. Stall occurs with the air flow over the wing is disrupted and does not flow smoothly over the wing. This reduces the Lift drastically. When an airplane pitches its nose up too much, the wing stalls and losses its lift and the airplane will begin to descend. Some airplanes will stall and one wing will drop over and the aircraft will go into a Spin. Modern airplanes, small ones and large passenger airplanes, are designed so that they easily stall into a spin.
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What has the author G J Hancock written?
G. J. Hancock has written: 'Problems of aircraft behaviour at high angles of attack' -- subject(s): Angle of attack (Aerodynamics), Stalling (Aerodynamics)
What is the landing angle of an aircraft?
Most aircraft have different landing angels dependent on weight, wing shape and stalling speed.
What is the difference between the Angle of Attack and th Angle of Incidence?
Hi!The angle of incidence is built into the aircraft, and cannot be changed. This angle is the angle that the wing makes with a level surface (such as if the ground if the aircraft were parked).The angle of attack (commonly abbreviated AoA), is the angle that the chordline of the airfoil makes with the relative wind. So if you were in straight and level flight, maintaining altitude, the angle of attack would be zero degrees.When an aircraft exceeds a critical angle of attack (which is determined by the design of the airplane), the airflow will peel off of the wing, causing the wing to stop producing lift. The aircraft is, in this scenario, stalled.Hope this helps.Source(s):PPL ASEL 6/17/08
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.
What is the difference between angle of attack and positive angle of attack?
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.
Why more lift is required when landing?
During landing, the purpose is to slow down the aircraft's ground speed as slow as you can without it stalling. You want to maintain Lift, not necessarily get more lift. At higher speeds, the aircraft has plenty of Lift. However during landing, the speed is slower and the angle of attack is increased to provide more Lift at lower speeds.
Relation between aspect ratio and stalling speed?
wings with smaller aspect ratio stall at higher angle of attack .. and wings with larger aspect ratio stall at a lower angle of attack ... stall can take place at any air speed but only a specific angle of attack.. my view says aspect ratio has no relation to stall speed.
What is the function of slats in aircraft?
Slats are used to reconfigure the wing in a high speed, or high angle-of-attack maneuover. When the units of angle of attack increase, the wing chord decreases. Slats compensate for this occurance.
What has the author J M Stifel written?
J. M. Stifel has written: 'Math model for NADC spin simulator and F-14 high angle of attack data base. Volume 1' -- subject(s): Angle of attack, Aircraft spin, Flight simulation, F-14 aircraft
What do elevators do on a plane?
An elevator is part of the control surfaces, usually at the rear of an aircraft, which changes the pitch or angle of attack of the aircraft. Basically it "makes" the aircraft nose up or nose down. See related link for an animated description.
What is the definition of stalling?
Stalling refers to an engine running too slowly to keep going, or to an aircraft losing it's airspeed enough to cease flying.
What is a loss of lift that can cause an airplane to crash?
A STALL, where the wing exceeds it's maximum angle of attack for the conditions (speed, g-force, etc>) under which the airplane is flying. Air separation over the top of the wing increases as angle of attack (angle of the wing compared to the airflow) increases, until the separation causes a decrease in lift. When under these conditions the amount of lift is less than the weight of the aircraft, the wing is stalled, and the aircraft descends. Since most aircraft don't seem to have an angle of attack meter, the airspeed indicator is usually marked with stall speeds experienced under various specific circumstances.
