Cessna 1973 172 - Airspeed and Engine Limitations; Instrument Markings and Indicators

AIRSPEED LIMITATIONS (CAS).
The following is a list of the certificated calibrated airspeed (CAS)
limitations for the aircraft.
Never Exceed Speed (glide or dive, smooth air) 182 MPH
Maximum Structural Cruising Speed 145 MPH
Maximum Speed, Flaps Extended 100 MPH
•Maneuvering Speed 112 MPH
*The maximum speed at which you may use abrupt
control travel.
AIRSPEED INDICATOR MARKINGS.
The following is a list of the certificated calibrated airspeed mark-
ings (CAS) for the aircraft.
Never Exceed (glide or dive, smooth air) . . . .182 MPH (red line)
Caution Range 145-182 MPH (yellow arc)
Normal Operating Range 61-145 MPH (green arc)
Flap Operating Range 54-100 MPH (white arc)
ENGINE OPERATION LIMITATIONS.
Power and Speed 150 BHP at 2700 RPM
ENGINE INSTRUMENT MARKINGS.
OIL TEMPERATURE GAGE.
Normal Operating Range Green Arc
Maximum Allowable 245 "F (red line)
OIL PRESSURE GAGE.
Minimum Idling 25 psi (red line)
Normal Operating Range 60-90 psi (green arc)
Maximum 100 psi (red line)
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