9.
ACRONYMS
AND
TERMINOLOGY
KCAS
KIAS
KTAS
Vo
Vs
Vso
Vx
Calibrated Airspeed is the indicated airspeed expressed in knots,
corrected taking into account the errors related to the instrument
itself
and its installation.
Indicated Airspeed is the speed shown on the airspeed indicator
and
it
is
expressed
in
knots.
True Airspeed is the KCAS airspeed corrected taking into ac-
count altitude and temperature.
Design Manoeuvring speed is the speed above the which it is not
allowed to make full
or
abrupt control movement.
Maximum Flap Extended speed
is
the highest speed permissible
with flaps extended.
Maximum Structural Cruising Speed is the speed that should not
be exceeded, except in smooth air and only with caution.
Never
Exceed Speed is the speed limit that may not be exceeded
at any time.
Operating Manoeuvring speed is the speed above the which it is
not allowed to make full
or
abrupt control movement
Stall Speed.
Stall Speed
in
landing configuration (flaps and landing gear
ex-
tended).
Stall speed
in
clean configuration (flaps 0°).
Best Angle-of-Climb Speed is the speed which results
in
the
greatest gain
of
altitude with respect to a given horizontal dis-
tance.
Vv Best Rate-of-Climb Speed is the speed which results
in
the great-
est gain
in
altitude
in
a given time.
VR
Rotation speed: is the speed at which the aircraft rotates about
the pitch axis during
takeoff
VwF Lift
off
speed:
is
the speed at which the aircraft generally lifts
off
from the ground.
V
oo.
Obstacle speed (screen speed. V
son}:
is the speed at which the
aircraft flies over a I
5m
obstacle during
takeoff
or
landing.
V
6
1;c1c
Glide speed: is the speed
of
maximum efficiency (to fly the long-
est distance per unit
of
altitude lost)
Page I - 9
Section
1 -
General
2""
Edition. Rev. 9
ACRONYMS
AND
TERMINOLOGY
To Next Page
Loading...
