1-7
ALPHA Trainer LSA
Pilot Operating Handbook
POH-162-00-40-001
PAGE REV. 0
PAGE
SECTION 1
GENERAL
1.7. SYMBOLS, ABBREVIATIONS AND TERMINOLOGY
1.7.1. 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 stan-
dard 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 undis-
turbed air which is KCAS corrected for altitude and temperature.
VG
Best Glide Speed is the speed at which the greatest flight distance is at-
tained per unit of altitude lost with power idle.
VA
Operating Maneuvering Speed is the maximum speed at which applica-
tion of full control movement will not overstress the airplane.
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 ex-
ceeded except in smooth air, and then only with caution.
VNE
Never Exceed Speed is the speed that may not be exceeded at any time.
VAE
Maximum Airbrakes Extended Speed is the maximum speed at which the
airbrakes may be extended.
VSO
Stalling Speed is the minimum steady flight speed at which the aircraft is
controllable in the landing configuration (100% flaps) at the most unfavor-
able weight and balance.
V
X
Best Angle of Climb Speed is the speed at which the airplane will obtain
the highest altitude in a given horizontal distance. The best angle-of-climb
speed normally increases slightly with altitude.
V
Y
Best Rate of Climb Speed is the speed at which the airplane will obtain
the maximum increase in altitude per unit of time. The best rate-of-climb
speed decreases slightly with altitude.
SL
Sea Level.
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