Assertion: airfoil's angle | /r/HasProperty | increased
Facets:
value: too much
type: MANNER
Source sentences:
text: Eventually, if the angle of attack is increased too much the air flowing over the top of the aerofoil creates such a low pressure region that the airflow across the top becomes turbulent.
text: As the angle of attack is increased, a point is reached where the boundary layer can no longer remain attached to the upper surface.
text: As the plane flies at this speed, the angle of attack must be increased to prevent any loss of altitude or gain in airspeed (which corresponds to the stall angle described above).
text: When the angle of attack is increased:
text: When the angle of attack is increased to develop positive lift, the vectors remain essentially opposite each other and the twisting force is not exerted.
text: Turbulent and laminar flow are separated by a point of transition or separation point; as the angle of attack is increased, the portion of the upper airflow that is turbulent also increases (it migrates forward from the trailing edge) and therefore produces increased drag.
text: In contrast, the centre of pressure moves forward as the angle of attack is increased until the critical angle of attack is achieved; when a stall occurs, the centre of pressure moves rearward, causing the instability associated with stall phenomena.
text: Stall strips are triangular strips placed on a portion of the leading edge of wing; they also have the effect of pacifying the stall characteristic of an aircraft—instead of the entire wing surface stalling uniformly, stall strips create a two-phase stall whereby those portions of the wing behind the strips stall first as the angle of attack is increased.