Limitations
POWER PLANT INSTRUMENT MARKINGS
AL250 Flight Manual
MEP
1-5 POWER PLANT INSTRUMENT MARKINGS
Red radial Yellow arc Green arc Red radial
Instrument
Minimum Caution Norm. op. range Max.
Tachometer 500 to 2700 rpm 2700 rpm
Oil Temperature 75° to 245°F245°F
Oil Pressure 25 psi 25 to 55 psi (idle) 55 to 100 psi 115 psi
100 to 115 psi
(warm-up, taxi, take-off)
Cylinder Head Temperature 200° to 500°F500°F
Table 1.1: Power Plant Instrument Markings
Figure 1.2: Tachometer Figure 1.3: Oil Temperature
Figure 1.4: Oil Pressure
Figure 1.5: Cylinder Head Temperature
Rev. 1.8 © 2021 ALSIM - All Rights Reserved 1-5
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