Glossary Papakupu

Explanations of abbreviations and acronyms.
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    E

    EASA
    European Union Aviation Safety Administration
    Ebbing
    Receding or outgoing tide, occurring between high- and low-tide times
    EDTO
    Extended Diversion Time Operation
    EECU
    Electronic Engine Control Unit
    Effectively stopped
    The speed over ground had reduced to 0.6 kt or less
    Elastic deformation
    Elastic deformation is a temporary deformation of a material’s shape that is self-reversing after removing the force or load.
    Elevation
    The primary unit of measurement of altitude and elevation or height is the metre. However, the most widely used unit of measurement in aviation is the foot. Metric altitudes and flight levels are used in some countries, such as China and Russia. AIPNZ GEN 2.1 states that the unit for measurement for altitudes, elevations and heights is feet.
    Emergency Locator Transmitter
    An emergency locator transmitter transmits a distress signal to the Cospas-Sarsat search and rescue satellite system.
    Emergency Locator Transmitter (ELT)
    An ELT transmits a distress signal to the Cospas-Sarsat search and rescue satellite system.
    Empennage
    The tail assembly, including the vertical fin, horizontal stabiliser and tail rotor.
    Empennage assembly
    A horizontal and vertical stabiliser that is located near the aft end of the tailcone. It is designed to provide stability during flight.
    End of daylight
    Civil Aviation Rules (CARs) 1: Definitions defines night beginning at the end of evening civil twilight, which is calculated from tables in AIPNZ GEN 2.7, s1.4 Daylight tables.
    Envelope
    The part of the balloon that holds the hot air and provides lift.
    EPIRB
    Emergency Position-Indicating Radio Beacon
    EPOD
    Electrical power outlet distribution
    Escort tug
    A tug that follows a ship to assist in manoeuvrability if required.
    ETA
    Estimated Time of Arrival
    ETAShip
    Estimated Time of Arrival for a ship
    ETCS
    European Train Control System standard for train signaling and control
    ETD
    Estimated Time of Departure
    ETP
    The point of equal flight time between two diversion airports. The point moves dependent on the wind – in a headwind the point is closer to the destination; in a tailwind it is closer to the point of departure.
    Evening civil twilight
    When the centre of the setting sun’s disc is 6° below the horizon
    Excursion
    When an aircraft departs a runway in use when landing or taking off, as either a veer-off or an overrun
    Exposition
    An exposition is a suite of manuals containing information about an operator’s general policies, duties, operational control policy and procedures, and the responsibilities of personnel. It is the main way of showing that the management and control systems required under the CARs are in place.