Section 2 – Limitations
AIRSPEED INDICATOR MARKINGS
3. AIRSPEED INDICATOR MARKINGS
Airspeed indicator markings and their colour code are explained in the following
table.
MARKING KIAS EXPLANATION
White arc
40 – 71
Positive Flap Operating Range (lower limit
is V
SO
, at specified maximum weight and
upper limit is the maximum speed permissi-
ble with landing flaps extension).
Green arc
48 – 113
Normal Operating Range (lower limit is V
S1
at specified maximum weight and most for-
ward c.g. with flaps retracted and upper limit
is maximum structural speed V
NO
).
Yellow arc
113 – 145
Manoeuvres must be conducted with caution
and only in smooth air.
Red line
145
Maximum speed for all operations.
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