Symbols Abbreviations And Terminology; General Terminology And Symbols - Cessna 172S NAV III Pilot Operating Handbook

CESSNA
MODEL 172S NAV III
SECTION 1
GENERAL
SYMBOLS, ABBREVIATIONS AND TERMINOLOGY
GENERAL AIRSPEED TERMINOLOGY AND SYMBOLS
KCAS
KIAS
KTAS
Vs
Vso
Vx
Vy
Knots Calibrated Airspeed is indicated airspeed
corrected for position and instrument error and
expressed in knots. Knots calibrated airspeed is equal
to KT AS in standard atmosphere at sea level.
Knots Indicated Airspeed is the speed shown on the
airspeed indicator and expressed in knots.
Knots True Airspeed is the airspeed expressed in
knots relative to undisturbed air which is KCAS
corrected for altitude and temperature.
Maneuvering Speed is the maximum speed at which
full or abrupt control movements may be used without
overstressing the airirame.
Maximum Flap Extended Speed is the highest
speed permissible with wing flaps in a prescribed
extended position.
Maximum Structural Cruising Speed is the speed
that should not be exceeded except in smooth air,
then only with caution.
Never Exceed Speed is the speed limit that may not
be exceeded at any time.
Stalling Speed or the minimum steady flight speed
is the minimum speed at which the airplane is
controllable.
Stalling Speed or the minimum steady tlight speed
is the minimum speed at which the airplane is
controllable in the landing configuration at the most
forward center of gravity.
Best Angle-ot-Climb Speed is the speed which
results in the greatest gain of altitude in a given
horizontal distance.
Best Rate-ot-Climb Speed is the speed which results
in the greatest gain in altitude in a given time.
172SPHAUS-OO
U.S. 1-9