Dissymmetry of Lift - Effects

Effects

Unless countered, dissymmetry causes the helicopter to roll to the retreating side.

When dissymmetry causes the retreating blade to experience less airflow than required to maintain lift, a condition called retreating blade stall occurs. This causes the helicopter to roll to the retreating side and pitch up (due to gyroscopic precession). Once this dangerous condition arises, control may be lost, resulting in loss of the aircraft.

Read more about this topic:  Dissymmetry Of Lift

Famous quotes containing the word effects:

    “Society’s double behavioral standard for women and for men is, in fact, a more effective deterrent than economic discrimination because it is more insidious, less tangible. Economic disadvantages involve ascertainable amounts, but the very nature of societal value judgments makes them harder to define, their effects harder to relate.”
    —Anne Tucker (b. 1945)

    “The best road to correct reasoning is by physical science; the way to trace effects to causes is through physical science; the only corrective, therefore, of superstition is physical science.”
    —Frances Wright (1795–1852)

    “Oh that my Pow’r to Saving were confin’d:
    Why am I forc’d, like Heav’n, against my mind,
    To make Examples of another Kind?
    Must I at length the Sword of Justice draw?
    Oh curst Effects of necessary Law!
    How ill my Fear they by my Mercy scan,
    Beware the Fury of a Patient Man.”
    —John Dryden (1631–1700)