Principles of flight rotary

Helicopters are capable of flight in what 5 manuevers?

The primary airfoil of the helicopter is ?

Unlike fixed wing , the main rotor produces both____ and _____.

The span of the rotor blade is the distance from ____ to _____.

The chord is the distance from _____ to ______.

The shape of the airfoil affects its________.

Many helicopters use a _______ airfoil

The _______ airfoil has the same curvature top and bottom

The ______ is the direction of the airflow with respect to the blade?

If the blade moves forward horizontally , the relative wind moves ______ horizontally

The rearward moving blade is the ______ blade

The forward moving blade is the _____ blade

Relative wind can be affected by 4 things?

The pitch angle is the acute angle between the rotor blade ______ and the _____ plane

Movement of the _____ changes pitch angle

The pitch angle is often confused with ?

The angle of attack is the acute angle between the _____ of the airfoil and the _______

The angle of attack is dependant on the _________ and the ______ angle

Lift is the force produced by the airfoil that is perpendicular to the ______ and that opposes _____

The force that tends to resist the airfoils passage through the air?

Drag varies as a square of the________?

The _______ is an imaginary point where the result of all the aerodynamic forces of the airfoil are considered to be concentrated.

Movement of the ______is common on most airfoils