Jabiru Aircraft
Pilot Operating Handbook
Model J170-D
JP-FM-13
Revision:
0
1
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28 Feb 2020
Page 0-11
•
CAS
Calibrated Airspeed:
the indicated speed of an aircraft corrected for position
and instrument error. Calibrated airspeed is equal to true airspeed in standard
atmosphere at sea level.
•
KCAS:
Calibrated Airspeed expressed in knots.
•
IAS
Indicated Airspeed:
the speed of an aircraft as shown on the airspeed
indicator. IAS values in this manual assume zero instrument error.
•
KIAS
Indicated Airspeed expressed in knots.
•
TAS
True Air Speed:
the airspeed of an aircraft relative to the undisturbed air
through which it passes.
•
T.O.S.S
Take-Off Safety Speed:
the airspeed chosen to ensure that adequate control
will exist under all conditions, including turbulence and sudden and complete
engine failure during the climb after take-off. It is the speed required at 50
feet.
•
V
A
Manoeuvring Speed:
the maximum speed at which application of full available
aerodynamic control will not damage or overstress the aircraft.
•
V
FE
Maximum Flap Extended Speed:
the highest speed permissible with wing
flaps in a prescribed extended position.
•
V
O
Operating Manoeuvring Speed:
the speed that an aircraft will stall in a nose-
up pitching manoeuvre before exceeding structural limits. V
O
cannot exceed
𝑉
𝑠
√𝑛
.
•
V
NE
Never Exceed Speed:
the limiting airspeed that may not be exceeded at any
time.
•
V
C
Maximum Structural Cruising Speed:
the speed that should not be exceeded
except in smooth air and then only with caution.
•
V
S
Stalling Speed:
or the minimum steady flight speed at which the aircraft is
controllable.
•
V
SO
Stalling Speed:
or the minimum steady flight speed at which the aircraft is
controllable in the landing configuration.
•
V
X
Best Angle-of-Climb Speed:
the airspeed which delivers the greatest gain of
altitude in the shortest possible horizontal distance.
•
V
Y
Best Rate-of-Climb Speed:
the airspeed which delivers the greatest gain in
altitude in the shortest possible time.
Meteorological Terminology
•
OAT
– Outside Air Temperature
–
the outside free air static temperature.