Aviation

Aviation

Dealing with vehicles or machines used in flight or propulsion through the air.

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Aviation > Airplane flying

electrohydraulic

Aviation; Airplane flying

Hydraulic control which is electrically actuated.

elevator

Aviation; Airplane flying

The horizontal, movable primary control surface in the tail section, or empennage, of an airplane. The elevator is hinged to the trailing edge of the fixed horizontal stabilizer.

emergency locator transmitter

Aviation; Airplane flying

A small, selfcontained radio transmitter that will automatically, upon the impact of a crash, transmit an emergency signal on 121.5, 243.0, or 406.0 MHz.

empennage

Aviation; Airplane flying

The section of the airplane that consists of the vertical stabilizer, the horizontal stabilizer, and the associated control surfaces.

engine pressure ratio (EPR)

Aviation; Airplane flying

The ratio of turbine discharge pressure divided by compressor inlet pressure that is used as an indication of the amount of thrust being developed by a turbine engine.

environmental systems

Aviation; Airplane flying

In an aircraft, the systems, including the supplemental oxygen systems, air conditioning systems, heaters, and pressurization systems, which make it possible for an occupant to ...

equilibrium

Aviation; Airplane flying

A condition that exists within a body when the sum of the moments of all of the forces acting on the body is equal to zero. In aerodynamics, equilibrium is when all opposing ...