SCHEMPP-HIRTH FLUGZEUGBAU GmbH., KIRCHHEIM/TECK
Ventus-2cM
FLIGHT MANUAL
5.2 LBA-approved
data
5.2.1 Airspeed indicator system calibration
Errors in indicated airspeed (IAS) caused by Pitot/Static pressure errors may be
read off from the calibration chart below. This chart is applicable to free flight with
•
propeller retracted (and flaps set at "-1") and
•
propeller extended (and flaps set at "0" resp. "+2")
PITOT pressure source
•
propeller retracted :
Near top of fin (lower port)
•
propeller extended :
Fuselage nose cone
STATIC pressure ports
•
Fuselage tail boom, 80 cm (31.5 in) forward of base of fin and 15 cm
(5.9 in) below main spar cut-out.
All airspeeds shown in this manual are indicated airspeeds (IAS) as registered by
the airspeed indicator.
November
2003
LBA-app.
Revision --
5.2.1
IN
DI
C
A
TE
D A
IRS
P
E
E
D
(
IAS
)
ρ
0
= 1.226 kg/m
3
all-up mass = 500 kg / 1102 lb
flap setting: -1
propeller retracted
177 154 285
V
NE
=
285 km/h
154 kt
177 mph
CALIBRATED AIRSPEED (CAS)
all-up mass = 500 kg / 1102 lb
flap setting: +2
propeller extended
ventilation OPEN
80
43
50
100
54
62
mph
kt
km/h
60
32
37
120
65
75
140
76
87
160
86
99
180
97
112
200
108
124
220
119
137
240
130
149
260
140
162
285
154
177
mph kt km/h
174 151 280
162 140 260
149 130 240
137 119 220
124 108 200
112 97 180
99 86 160
87 76 140
75 65 120
62 54 100
50 43 80
37 32 60
Summary of Contents for Ventus-2cM
Page 11: ......
