the Aviation Dictionary

centervent system ceramic
centervent system - Use of the main rotorshaft as an
air-oil separator in place of a driven centrihgal device.
After separation, oil is scavenged back to the oil
reservoir and air, which was entrained in the oil, is
vented through the rotorshaft into the gas path in the
area of the turbine wheel.
centigrade - Formerly used for Celsius temperature.
centigrade temperature scale - Same as Celsius
temperature scale.
centimeter-gram-second (cgs) system - Metric system
of measurement using the centimeter as the basic unit
of measurement of length, the gram as the basic unit
for weight, and the second as the basic unit for time.
centistoke - A unit of viscosity measurement of both
fuels and oils. 11100 of a "stoke."
Central East Pacific - An organized route system
between the U.S. West Coast and Hawaii.
Central Processing Unit (CPU)- The main processing
portion of a computer. The CPU stores and operates on
data, provides time signals, and performs
arithmeticllogic functions.
constraining the object and that acts outwardly away
from the center of rotation.
centrifugal moment - A force that tries to produce a
rotation caused by the amount of centrifugal force
acting on an object.
centrifugal oil filter -A rotary filtering element used to
throw contaminants outward into sediment traps.
centrifugal pump - Any pump that uses a high-speed
impeller to throw the fluid outward by centrifugal
action.
centrifugal switch - An electrical switch mounted
inside of a rotating induction motor of a capacitorstarter.
The switch, actuated bv centrifugal - force.
disconnects the starter winding when the rotor is
turning at a predetermined speed.
centrifugal tachometer - A mechanical tachometer that
measures the speed of a rotating shaft. Flyweights are
mounted on a collar around the rotating shaft in such
away that centrifugal force pulls the flyweights away
from the shaft. As the flyweights move away from the
shaft, the collar moves up the shaft causing a pointer to
move over a dial registering the shaft speed.
'Ystern - An aircraft 'ystem in centrifugal histing force - The forces
which all tanks may be filled from one fueling point.
Also referred to as a single-point refueling system or a
pressure refueling system.
centrifugal -An apparent force that opposes centripetal
force, resulting from the effect of inertia during a turn.
centrifugal brake - A friction brake used to apply
friction if the unit rotating turns at a spced that is faster
than is permitted.
acting on a propeller blade. The twisting force is
present in all rotating propellers and always acts to
send the blades toward a lower - pitch - position.
Fentrihgal moment - The tendency of a
- propeller - blade to twist on its axis due to the
centrihgal forces acting on the blade. The twisting
moment is present in all rotating propellers and always
acts to send the blades toward a lower pitch position.
centrifugal breather - A centrifugal device through centrifugal-typc pump A pump that uses a high-speed
which oil laden air from the vent subsystem passes. Oil impeller to throw the fluid outward at a high velocity.
is returned to the reservoir and air exits back to the
centrifuge - A device used to separate a liquid mixture
atmosphere.
or a suspension into its various components that have
centrifugal clutch - A friction clutch that engages when different specific gravities.
a drive wheel reaches a predetermined speed. The
centrifuge action - A force that tends to separate
clutch is engaged by centrifugal force that acts on a
particles according to their density, or to pull an object
flyweight mechanism.
apart by rotating it rapidly about its center.
centrifugal filter - A filtering element that separates
centrifuging - A method of separating particles of
contaminants from a fluid by centrifugal action. It
varying density by spinning them in a centrifuge.
throws contaminants by rotary motion into traps that
hold them until they can be removed.
centrifugal flow compressor - An impeller-shaped
device that receives air at its center and slings air
outward at high velocity into a diffuser for increased
pressure. Also referred to as a radial outflow
compressor.
centrifugal force - The outward pull on a body as it
rotates or spins.
centrifugal force - The apparent force that an object
moving along a circular path exerts on the body
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centripetal force - The force within a body that opposes
the centrifugal force as the body rotates or spins.
centroid - The center of mass of a body or a point about
which all of its mass is concentrated.
ceramic - A clay-like material composed primarily of
magnesium and aluminum oxide, which may be
molded and fired to produce an excellent insulating
material.