the Aviation Dictionary

external tooth lock washer. eyelet
external tooth lock washer - A thin, spring steel,
shake-proof lock washer with
twisted teeth around its outside
circumference that holds pressure
between the head of a screw or
bolt and the metal surface to
prevent the fastener from
loosening.
external-control surface locks -
The locks applied on the exterior
of the control surfaces of a parked aircraft to prevent
movement in windy conditions.
external-load attaching - The structural components
used to attach an external load to an aircraft, including
external-load containers, the backup structure at the
attachment points, and any quick-release device used to
jettison the external load.
extinguishing agent - The agent used in a fire
extinguishing system to either cool the fuel below its
kindling point or to exclude oxygen from the surface of
the fire.
extra-flexible control cable - A special metal cable
flexible enough to pass around pulleys. It consists of
seven strands of wire with 19 wires in each strand.
extratropical cyclone - A macroscale low-pressure
disturbance that develops outside the tropics.
extrude - To form by forcing through a die of the
desired shape.
extrusion - A strip
of metal, usually
of aluminum or
magnesium, that
has been forced
through a die in
its plastic state.
This can produce
complex crosssectional
shapes
required for modem aircraft construction.
eye - 1. The hole of an eyebolt. 2. In meteorology, the
roughly circular area of calm or relatively light winds
and comparatively fair weather at the center of a
well-developed tropical cyclone. A wall cloud marks
the outer boundary of the eye.
eye wall - The cloudy region embedded with
cumulonimbus (CB) clouds immediately adjacent to
the eye of an intense tropical cyclone.
eyebolt - A bolt that has a flattened head with a hole in
it. An eyebolt is used to attach a cable to a structure.
eyebrow lights - Small shielded lights positioned over
the top comers of an instrument on an aircraft
instrument panel. The lights illuminate the dials of the
instrument, but they do not shine in the eyes of the
pilot.
eyelet - A flanged tubular fastener designed for securing
by curling or splaying the end.
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