the Aviation Dictionary

copper brazing corrugation
copper brazing - A method of joining metals where
molten copper is used to stick to and flow between two
or more metallic objects. Differs from welding in that
the object metals are not melted and fused together.
copper crush gasket - A copper gasket with a fiber core
that crushes when tightened between mating surfaces.
Takes the shape of the mating surfaces for the purpose
of creating a leakage-free seal.
copper steel - When any minimum copper content is
specified, the steel is classed as copper steel. The
copper is added to enhance corrosion resistance of the
steel.
copper-constantan thermocouple - A low-temperature
thermocouple that has a copper positive element and a
constantan reference element.
copper-oxide rectifier - A rectifier that utilizes a
copper-oxide coating to restrict the flow of electrons to
one direction and not the other. Such a device is used
to convert alternating current to direct current.
copperweld - An electrical conductor that uses a steel
core for strength and copper coating for good
conductance of electricity.
copter - Slang expression for helicopter
cord body - The diagonal layers of rubber-coated nylon
cord fabric (running at right angles to one another),
which provide the strength to a tire.
core - In composites, the central member of a sandwich
part (usually foam or honeycomb). Produces a
lightweight, high strength component when laminated
with face sheets.
core crush - In composites, compression damage of the
core.
core depression - In composites, a gouge or indentation
in the core material.
core engine - The basic portion of a turbine engine
consisting of the compressor that supplies air for
combustion, the combustor section, and the turbine
section.
core orientation - In composites, the placement of the
honeycomb core to line up the ribbon direction,
thickness of the cell depth, cell size, and transverse
direction.
core separation - In composites, a breaking of the
honeycomb core cells.
core speed sensor - Same as tachometer generator
speed (N2 speed on a dual spool engine).
core splicing - In composites, joining two core
segments by bonding them together, usually with a
foaming adhesive.
coriolis effect - In rotorcraft, the tendency of a rotor
blade to increase or decrease its velocity in its plane of
rotation when the center of mass moves closer or
further from the axis of rotation.
Coriolis force - The apparent force that is produced
when an object moves in relation to a surface that is
rotating beneath it. Used to explain why the wind
moves in a counter-clockwise direction around a lowpressure
area (in the Northern Hemisphere).
cork - A lightweight wood used for gaskets and
sometimes as an insulator.
cornice brake - A large sheet metal forming tool used
to make straight bends. Also referred to as a leaf brake.
corona - The discharge of electricity from a wire when
it has a high potential.
corrected altitude - Altitude corrected for temperature.
Approximately the same as true altitude.
correction - An error has been made in the transmission
and the correct version follows.
correlation -A basic level of learning where the student
can associate what has been learned, understood, and
applied with previous or subsequent learning.
correlation box - Correlator. A device to automatically
add power to a helicopter engine as the collective pitch
control is raised.
corrosion - An electrochemical process in which a
metal is transformed into chemical compounds that are
powdery and have little mechanical strength.
corrosion inhibiting primer - A primer formulated to
stop, slow down, or prevent corrosion on the surface of
the material to which the primer is applied..
corrosion inhibitor - A substance added to a coating
that slows down, stops, or prevents corrosion on the
surface of the material to which the coating is applied.
corrosion prevention compound - An oil that has
special corrosion prevention properties that is added to
a reciprocating engine to prevent corrosion while the
engine is in storage.
corrosion resistant steel - Stainless steel. A steel that
has resistance to corrosion.
corrugated fastener - A fastener made up of wrinkles
or folds that is used to hold two pieces of wood
together in a butt joint.
corrugated sheet metal - Metal sheets that have been
formed into wrinkles or folds in order to increase
rigidity.
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corrugation - Parallel wrinkles or folds in a material
that increase the material's rigidity.
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A
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