Hostility is seen as form of emotionally charged angry behavior. In everyday speech it is more commonly used as a synonym for anger and aggression.It appears in several psychological theories.ostility is seen as form of emotionally charged angry behavior. In everyday speech it is more commonly used as a synonym for anger and aggression. It appears in several psychological theories.
In the Popular Rotorcraft Association, ârotorcraftâ includes anything that uses rotor blades to produce the lift needed to fly, such as helicopters and gyroplanes. A ârotorcraftâ is a specific US FAA âcategoryâ of aircraft. âHelicoptersâ and âGyroplanesâ are specific U.S. FAA âclassesâ of rotorcraft.
Rotor and Rotor Blades: An Overview. The rotor is the heart of a wind turbine. It consists of multiple rotor blades attached to a hub. The rotor converts the wind energy into a rotation. In the following, the structure and operation of rotors are discussed and concepts of power control presented.