SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
Ventus-3T „Sport“
FLIGHT MANUAL
April 2018
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
It is not allowed to fly in this speed
range by strong turbulence, moreover
maneuvers must be flown with caution.
Green arc
103 - 180 km/h
56 - 97 kt
64 - 112 mph
Normal operating range
lower limit is 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