1-8
P/N 11934-003
Section 1
Cirrus Design
General
SR20
Symbols, Abbreviations and Terminology
General Airspeed Terminology and Symbols
KCAS
Knots Calibrated Airspeed
is the indicated airspeed
corrected for position and instrument error. Calibrated
airspeed is equal to true airspeed in standard atmosphere at
sea level.
KIAS
Knots Indicated Airspeed
is the speed shown on the
airspeed indicator. The IAS values published in this
handbook assume no instrument error.
KTAS
Knots True Airspeed
is the airspeed expressed in knots
relative to undisturbed air which is KCAS corrected for
altitude and temperature.
V
G
Best Glide Speed
is the speed at which the greatest flight
distance is attained per unit of altitude lost with power off.
V
O
Operating Maneuvering Speed
is the maximum speed at
which application of full control movement will not overstress
the airplane.
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, and then only
with caution.
V
NE
Never Exceed Speed
is the speed that may not be
exceeded at any time.
V
PD
Maximum Demonstrated Parachute Deployment Speed
is
the maximum speed at which parachute deployment has
been demonstrated.
V
S
Stalling Speed
is minimum steady flight speed at which the
aircraft is controllable.
V
S
50%
Stalling Speed
is minimum steady flight speed at which the
aircraft is controllable with 50% flaps.
Revision A5
Summary of Contents for SR20
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