the Aviation Dictionary

taxi weight. temverature ratio
taxi weight - The maximum weight allowed for ground
maneuvering. Also referred to as ramp weight.
taxiway - Airport pavement that allows aircraft to taxi
from the terminal or parking area to the runway.
taxonomy of educational objectives - A system of
sorting learning outcomes into the three domains of
cognitive, affective and psychomotor and rank ordering
learning levels from least to most complex within each
domain.
TCAS I - A TCAS (traffic collision avoidance system)
that utilizes interrogations of, and replies from,
airborne radar beacon transponders and provides traffic
advisories to the pilot.
TCAS I1 -A TCAS (traffic collision avoidance system )
that utilizes interrogations of, and replies from airborne
radar beacon transponders and provides traffic
advisories and resolution advisories in the vertical
plane.
TCAS 111 - A TCAS (traffic collision avoidance
system) that utilizes interrogation of, and replies from,
airborne radar beacon transponders and provides traffic
advisories and resolution advisories inthe vertical and
horizontal planes to the pilot.
teaching - The systematic and deliberate creation of
practical instructional events (experiences) that are
conducive to learning.
teaching lecture - An oral presentation that is directed
toward desired learning outcomes. Some student
participation is allowed.
teardown area - The area in an overhaul shop where
equipment is received, inventoried, cleaned, and
disassembled for overhaul.
technician - Aviation Maintenance Technician (AMT).
A person skilled in repairing aircraft who has been
issued a certificate from the FAA authorizing the
holder to repair aircraft.
Tedlaro - In composites, a material used on the surface
as a waterproof barrier.
tee fitting - A plumbing
connector in the shape of a
T.
teetering hinge - In
rotorcraft. a hinge - that
permits the rotor blades of
a semirigid rotor system to flap as a unit.
Teflon - A proprietary name for a fluorocarbon resin
used to make hydraulic and pneumatic seals and
backup rings.
teleflex cable - A cable used to connect engine
accessories to cockpit controls. Also used as a feedback
cable.
telegraphing - In composites, dimpling of the fabric
into the honeycomb core.
telemetering - A system of sending data over great
distances by radio.
telephone information briefing service (TIBS) -
Telephone recording of weather andor aeronautical
information.
telescope - To extend or collapse a series of
interconnecting sections in order to make a longer or
shorter linear assembly.
telescoping gauge - A precision measuring device that
consists of a spring-loaded rod telescoping inside a
tube. The gauge is adjusted to the width of a bore or a
hole and locked. It is then removed fiom the hole and
the length is measured with a micrometer.
telling and doing technique - A technique of flight
instruction that consists of the instructor first telling
about and demonstrating the new procedure. This is
followed by the student telling and the instructor doing.
Third, the student talks about the new procedure while
doing it. Last, the instructor evaluates while the student
accomplishes the procedure.
temper - The condition of hardness or softness of metal.
temperature - In general, the degree of hotness or
coldness as measured on some definite temperature
scale by means of any of various types of
thermometers. Also, a measure of the direction heat
will flow proportional to the mean kinetic energy of the
molecules.
temperature amplifier - An electronic device used to
amplify the exhaust temperature signal before being
passed on to the fuel control. Used to assist in
scheduling fuel flow.
temperature bulb - A temperature sensor installed at
points such as the air intake or exhaust manifold.
Output is transmitted to temperature gauges in the
aircraft cockpit or to the fuel control.
temperature coefficient of resistance - The rate of
change in resistance per degree centigrade of
temperature change.
temperature datum system - An electronic circuit in
an electrohydromechanical fuel control. Used to assist
in scheduling fuel flow.
temperature gradient - The change of temperature
divided by the distance over which the change occurs.
temperature inversion - In meteorology, an increase in
temperature with height - a reversal of the normal
decrease with height in the troposphere.
temperature ratio - A ratio of two engine temperatures
used in certain performance calculations.
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