Power Plant Instrument Markings; Center Of Gravity Limits; Maneuver Limits; Flight Load Factor Limits - Cessna 1980 172RG Cutlass Pilot Operating Handbook

SECTION 2
LIMITATIONS

POWER PLANT INSTRUMENT MARKINGS

Power plant instrument markings and their color code significance
are shown in figure 2-3.
RED LINE
INSTRUMENT
MINIMUM
LIMIT
Tachometer:
S.L.
to 7500 Ft
- - -
7500 ft. and above
Manifold Pressure
- - -
Oil Temperature
- - -
Cylinder Head
- - -
Temperature
Fuel Pressure
0.5 psi
Oil Pressure
25 psi
Suction
Fuel Quantity E
(2 Gal. Unusable
Each Tank)
Figure 2-3. Power Plant Instrument Markings

WEIGHT LIMITS

Maximum Ramp Weight: 2658 lbs.
Maximum Takeoff Weight: 2650 lbs.
Maximum Landing Weight: 2650 lbs.
Maximum Weight in Baggage Compartment:
Baggage Area 1 - Station 82 to 108: 200 lbs. See note below.
2-6
CESSNA
MODEL 172RG
GREEN ARC
RED LINE
NORMAL
MAXIMUM
OPERATING LIMIT
2100 - 2500
2700 RPM
(inner arc)
2100 - 2700
(outer arc)
15 - 25 - - -
in. Hg
100° - 245°F 245°F
200° - 500°F 500°F
0.5 - 8.0 psi 8.0 psi
60 - 90 psi 100 psi
4.5 5.4
in. Hg
- _
1 July 1979
CESSNA
MODEL 172RG
Baggage Area 2 - Station 108 to 124: 50 lbs. See note below.
NOTE
The maximum combined weight capacity for baggage
areas 1 and 2 is 200 lbs.

CENTER OF GRAVITY LIMITS

Center of Gravity Range:
Forward: 36.0 inches aft of datum at 1950 lbs. or less, with straight line
variation to 39.5 inches aft of datum at 2650 lbs.
Aft: 46.5 inches aft of datum at all weights.
Moment Change Due To Retracting Landing Gear: +2424 lb.-ins.
Reference Datum: Front face of firewall.

MANEUVER LIMITS

This airplane is certificated in the normal category. The normal
category is applicable to aircraft intended for non-aerobatic operations.
These include any maneuvers incidental to normal flying, stalls (except
whip stalls), lazy eights, chandelles, and steep turns in which the angle of
bank is not more than 60°.
Aerobatic maneuvers, including spins, are not approved.

FLIGHT LOAD FACTOR LIMITS

Flight Load Factors:
*Flaps Up: +3.8g, -1.52g
*Flaps Down: +2.0g
*The design load factors are 150% of the above, and in all cases, the
structure meets or exceeds design loads.
1 July 1979
SECTION 2
LIMITATIONS
2 7
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