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Pipistrel Virus 912 User Manual

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14
VIRUS
www.pipistrel.si
REV. 0
15
VIRUS
www.pipistrel.si
REV. 0
Limitations
200 108
210 113
220 119
230 124
240 130
250 135
260 140
270 146
280 151
290 156
300 162
310 167
320 173
330 178
340 184
350 189
360 194
370 200
380 205
390 211
400 216
0
3000 6000 9000 12000 15000 18000 21000 24000 27000 30000
1000 2000
3000
4000
5000
6000
7000
8000
9000
km/h kts
pressure altitude
True AirSpeed (TAS)
IAS=220 km/h (119 kts)
IAS=240 km/h (130 kts)
m
ft
100 54
110 59
120 65
130 70
140 76
150 81
160 86
170 92
180 97
190 103
200 108
210 113
220 119
230 124
240 130
250 135
260 140
270 146
280 151
0
3000 6000 9000 12000 15000 18000 21000 24000 27000 30000
1000 2000
3000
4000
5000
6000
7000
8000
9000
km/h kts
pressure altitude
Indicated AirSpeed (IAS)
m
ft
TAS=225 km/h (122 kts)
TAS=250 km/h (135 kts)
The graph below shows which indicated airspeed (IAS) must be maintained to keep the true air-
speed (TAS) constant Note that true airspeed (TAS) is constant along the entire servicable altitude
range! (VNE for Virus is 249 km/h (134 kts) TAS. Note how VNE decreases at higher altitudes!)
IAS & TAS graphs (standard ICAO atmosphere)
WARNING! Above pressure altitude of 1000 meters (3300 ft) all speed limits (see
previous page) MUST be treated as True AirSpeed (TAS).
Indicated AirSpeed (IAS) MUST be reduced accordingly (see graphs above)!!!
Hint: You can draw your own lines for other speeds on these graphs. At 0 meters (0 feet) start at the desired
IAS (1
st
graph) or TAS (2
nd
graph) and follow the same line curvature.
The graph below shows how TAS changes in relation to pressure altitude. Note that the indicated air-
speed (IAS) is constant along the entire servicable altitude range!
(Vmax for Virus is 240 km/h (130 kts) TAS)
dierence between IAS and TAS. Be aware of this eect especially when ying at high altitude at high
speeds, not to exceed VNE unawarely. Bear in mind this can happen even with the indicator still pointing
within the yellow arc! However, for ight planning purposes TAS is the most accurate speed, which then
can be corrected by eventual tail/head wind component to obtain the aircrafts ground speed (GS).

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Pipistrel Virus 912 Specifications

General IconGeneral
BrandPipistrel
ModelVirus 912
CategoryAircrafts
LanguageEnglish

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