SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
Ventus-3M „Performance“
FLIGHT MANUAL
March 2019
CS 22
Revision –
2.3.1
2.3
Airspeed indicator markings
Airspeed indicator markings and their colour code significance are shown below:
MARKING
IAS
SIGNIFICANCE
Red line at
280 km/h
151 kt
174 mph
Maximum permitted speed
Yellow arc
180 – 280 km/h
97 – 151 kt
112 – 174 mph
Manoeuvres must be conducted with
caution and operating in rough air is
not permitted.
Green arc
102 - 180 km/h
56 – 97 kt
64 – 112 mph
Normal operating range
lower limit is the speed 1.1 times V
S1
at maximum mass, with c/g in the
most forward position and flaps at the
neutral position;
upper limit is the max. allowed speed
in rough air
White arc
94 - 180 km/h
51 – 97 kt
58 – 112 mph
Positive flap operating range
Lower limit is the speed 1.1V
S0
at
maximum mass and in landing
configuration;
upper limit is the max. permissible
speed with flaps extended positive
Yellow triangle at
110 km/h
59 kt
68 mph
Recommended approach speed at
maximum mass without water ballast
Blue line at
100 km/h
54 kt
62 mph
Speed V
Y
for best rate of climb
