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.
A Sailor checks the propeller of a Landing Craft Air Cushion (LCAC) Hovercraft. An aircraft propeller (noun /prÉËpelÂ·Ér/) or airscrew converts rotary motion from an engine or other mechanical power source, to provide propulsive force. It comprises a rotating power-driven hub, to which are attached several radial airfoil-section blades such that the whole assembly rotates about a longitudinal axis.