Cessna 152 1978, Pilot Operating Handbook

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CESSNA AIRCRAFT COMPANY FOR TRAINING USE ONLY
MODEL 152 1-8
SYMBOLS, ABBREVIATIONS AND TERMINOLOGY
GENERAL AIRSPEED TERMINOLOGY AND SYMBOLS
KCAS Knots Calibrated Airspeed is indicated airspeed corrected for position and
instrument error and expressed in knots. Knots calibrated airspeed is equal
to KTAS in standard atmosphere at sea level.
KIAS Knots Indicated Airspeed is the speed show on the airspeed indicator and
expressed in knots.
KTAS Knots True Airspeed is the airspeed expressed in knots relative to
undisturbed air which is KCAS corrected for altitude and temperature.
V
A
Maneuvering Speed is the maximum speed at which you may use abrupt
control travel.
V
FE
Maximum Flap Extended Speed
is the highest speed permissible with wing
flaps in a prescribed extended position.
V
NO
Maximum Structural Cruising Speed is the speed that should not be
exceeded except in smooth air, then only with caution.
V
NE
Never Exceed Speed is the speed limit that may not be exceeded at any
time.
V
S
Stalling Speed or the minimum steady flight speed at which the airplane is
controllable.
V
S0
Stalling Speed or minimum steady flight speed at which the airplane is
controllable in the landing configuration at the most forward center of
gravity.
V
X
Best Angle-of-Climb Speed is the speed which results in the greatest gain of
altitude in a given horizontal distance.
V
Y
Best Rate-of-Climb Speed is the speed which results in the greatest gain in
altitude in a given time.