General - Beechcraft C23 SUNDOWNER 180 Pilot Operating Handbook

Section i BEECHCRAFT Sundowner
180
General
C23 (M-1285 and
After)
SYMBOLS, ABBREVIATIONS
AND
TERMINOLOGY
The
following
Abbreviations
and
Terminologies have been
listed
for
convenience
and
ready
interpretation
where
used
within
this handbook. Whenever possible,
they
have
been
categorized for
ready reference.
GENERAL
AIRSPEED TERMINOLOGY
AND SYMBOLS
CAS Calibrated
Airspeed is
the
indicated speed
of
an airplane, corrected for
position and
instrument
error.
Calibrated airspeed
is
equal
to
true
airspeed
in standard
atmosphere
at
sea level.
GS
Ground Speed
is
the speed of an airplane
relative to
the ground.
IAS
Indicated Airspeed
is the
speed of
an airplane
as shown
on
the airspeed indicator
when
corrected
for instrument
error. IAS
values
pubilshed in this handbook
assume
zero
instrument
error.
KCAS Calibrated
Airspeed expressed in "knots".
KIAS
Indicated Airspeed expressed in "knots".
TAS
True Airspeed
is the airspeed
of
an airplane
relative to undisturbed air
which
is
the CAS
corrected
for
altitude,
temperature,
and
compressibility.
1-12
February
1979