Aeropro A220 - 8. Required Placards and Markings; 8.5 Airspeed Indicator Range Markings

Aeropro CZ - A220 taildragger - Pilot Operating Handbook and Flight Training Supplement
March 21, 2020
43
Required placards and markings
8.5 Airspeed indicator range markings
Marking
MPH (Indicated Air Speed)
Signification
White arc
41 - 93
Flaps operating range. The lower limit is the maximum-weight
zero thrust stall speed in the landing configuration. The upper
limit is the maximum speed allowable with flaps extended.
Green arc
50 - 109
Normal operating range. The lower limit is the maximum-
weight zero thrust stall speed with flaps retracted, and the
upper limit is maneuvering speed.
Yellow arc
109 - 143
Caution range – operation must be conducted with caution
and only in smooth air.
Red line
143
Never exceed speed. Maximum speed for all operation.
Overview of speed limits:
Speed
MPH (Indicated
Air Speed)
Remarks
V
NE
Never exceed
speed
143
Do not exceed this speed in any operation.
V
A
Maneuvering
speed
109
Do not make full or abrupt control movements -- the
maximum is 1/3 deflections of control surfaces above this
speed or the aircraft might be overstress.
V
FE
Maximum flaps
extended speed
93
Do not exceed this speed with wing flaps extended.
V
S0
Minimum steady
flight speed
43
with extended wing flaps
V
S1
Minimum steady
flight speed
50
wing flaps retracted