AIRCRAFT OPERATING INSTRUCTIONS – VIRUS 912 S-LSA GLIDER
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10. Required Placards and Markings.
10.1 Airspeed Indicator Markings.
Airspeed indicator calibration (IAS to CAS) - Pitot tube’s
mounting point and construction makes IAS to CAS correction values insignificant. Therefore
pilots should regard IAS to be same as CAS. IAS = CAS.
MARKING IAS [kts]
Definition
White
band
36 -70
Full Flap Operating Range. Lower limit is the
maximum weight VS0 in landing configuration. Upper
limit is maximum speed permissible with flaps
extended.
Green
band
42 -76
Normal Operating Range Lower end is maximum
weight VS1 at most forward C.G. with flaps retracted.
Upper limit is maximum structural cruising speed.
Yellow
band
76 - 120
Maneuver the aircraft with caution in calm air only.
Red line
120
Maximum speed for all operations
Blue line
70
Best climb rate speed (V
Y
)
10.2 Operating Limitations on instrument panel.
Instrument
Red line
(minimum)
Green arc
(normal)
Yellow arc
(caution)
Red line
(maximum)
Tachometer (RPM)
Oil temperature
Cylinder head temp.
Oil pressure
1600
50°C (122°F)
1.0 bar (14.5 psi)
1600-5500
90-110°C
(194-230°F)
5500-5800
110-140°C
(230-284°F)
110-120°C
(230-248°F)
5800
140°C (284°F)
120°C (248°F)
6.0 bar (87.0 psi
)
10.3 Passenger warnings.
