SECTION 1
GENERAL
CESSNA
MODEL 172A (180 HP)
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 KT AS in standard atmosphere at sea level.
KIAS
Knots Indicated Airspeed
is the speed shown 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.
VA
Maneuvering Speed
is the maximum speed at which
full or abrupt control movements may be used without
overstressing the airframe.
VFE
Maximum Flap Extended Speed
is the highest
speed permissible with wing flaps in a prescribed
extended position.
VNo
Maximum Structural Cruising Speed
is the speed
that should not be exceeded except in smooth air,
then only with caution.
VNE
Never Exceed Speed
is the speed limit that may not
be exceeded at any time.
Vs
Stalling Speed or the minimum steady flight speed
is the minimum speed at which the airplane is
controllable.
1-8
Stalling Speed or the minimum steady flight speed
is the minimum speed at which the airplane is
controllable in the landing configuration at the most
forward center of gravity.
Nov 24/99
Summary of Contents for 172R180HP
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