Piper CHEROKEE TURBO ARROW III 1976 Pilot Operating Handbook page 13

PIPER AIRCRAFT CORPORATION
SECTION 1
PA-28R-201T, CHEROKEE TURBO
ARROW
III GENERAL
1.19 SYMBOLS, ABBREVIATIONS
AND
TERMINOLOGY
The following definitions
are of symbols,
abbreviations
and
terminology
used
throughout the
handbook and
those
which may
be
of added operational significance to the pilot.
(a)
General Airspeed Terminology and Symbols
CAS
Calibrated Airspeed
means
the indicated speed of an aircraft,
corrected for position and instrument error. Calibrated airspeed is
equal
to true
airspeed in standard atmosphere
at sea level.
KCAS
Calibrated Airspeed expressed in
"Knots."
GS Ground Speed is the speed of an airplane relative to the ground.
IAS Indicated Airspeed
is the
speed of an aircraft as shown on
the
airspeed
indicator
when corrected for instrument
error.
IAS
values
published in
this
handbook assume zero instrument
error.
KIAS
Indicated Airspeed expressed in
"Knots."
M Mach Number is
the
ratio of
true
airspeed
to the
speed of sound.
TAS True Airspeed is
the
airspeed of an airplane relative
to
undisturbed
air which is the CAS corrected for altitude,
temperature
and
compressability.
VA
Maneuvering
Speed is the maximum speed at which application of
full available aerodynamic control will not overstress the airplane.
VFE Maximum Flap Extended Speed is
the
highest speed permissible
with wing flaps in a prescribed extended position.
VLE
Maximum Landing
Gear
Extended
Speed is the maximum speed at
which an aircraft
can
be safely flown with
the
landing gear
extended.
VLO Maximum Landing Gear Operating Speed is
the
maximum speed at
which the landing gear can
be safely extended or retracted.
VNE/MNE
Never Exceed Speed
or
Mach Number is the speed limit
that
may
not
be
exceeded at any
time.
VNO
Maximum
Structural
Cruising
Speed is the
speed
that
should not
be exceeded except in smooth air and
then
only with caution.
ISSUED:
DECEMBER
20,
1976
REPORT: VB-800
1-5