Power Plant Instrument Markings; Weight Limits; Center Of Gravity Limits; Maneuver Limits - Cessna 172N Pilot Operating Handbook

SECTION 2
LIMITATIONS
CESSNA CESSNA
MODEL 172N MODEL 172N
SECTION 2
LIMITATIONS
POWER PLANT INSTRUMENT MARKINGS
Power plant instrument markings and their color code significance
are shown in figure 2-3.
RED LINE GREEN ARC YELLOW ARC
INSTRUMENT
MINIMUM NORMAL CAUTION
LIMIT
OPERATING
RANGE
Tachometer
- - -
2200 - - - -
2700 RPM
Oil Temperature - - - 100°-245°F - - -
Oil Pressure 25 psi 60-90 psi -
- -
Carburetor Air
-
-
-
- - -
-15° to 5°C
Temperature
Figure 2-3. Power Plant Instrument Markings
WEIGHT LIMITS
NORMAL CATEGORY
Maximum Takeoff Weight: 2300 lbs.
Maximum Landing Weight: 2300 lbs.
Maximum Weight in Baggage Compartment:
RED LINE
MAXIMUM
LIMIT
2700 RPM
245°F
100 psi
- - -
Baggage Area 1 (or passenger on child's seat) - Station 82 to 108: 120
lbs. See note below.
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Baggage Area 2 - Station 108 to 142: 50 lbs. See note below.
NOTE
The maximum combined weight capacity for baggage
areas 1 and 2 is 120 lbs.
UTILITY CATEGORY
Maximum Takeoff Weight: 2000 lbs.
Maximum Landing Weight: 2000 lbs.
Maximum Weight in Baggage Compartment: In the utility category, the
baggage compartment and rear seat must be not occupied.
CENTER OF GRAVITY LIMITS
NORMAL CATEGORY
Center of Gravity Range:
Forward: 35.0 inches aft of datum at 1950 lbs. or less, with straight line
variation to 38.5 inches aft of datum at 2300 lbs.
Aft: 47.3 inches aft of datum at all weights.
Reference Datum: Lower portion of front face of firewall.
UTILITY CATEGORY
Center of Gravity Range:
Forward: 35.0 inches aft of datum at 1950 lbs. or less, with straight line
variation to 35.5 inches aft of datum at 2000 lbs.
Aft: 40.5 inches aft of datum at all weights.
Reference Datum: Lower portion of front face of firewall.
MANEUVER LIMITS
NORMAL CATEGORY
This airplane is certificated in both the normal and utility 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 turns in which the
angle of bank is not more than 60°. Aerobatic maneuvers, including spins,
are not approved.
UTILITY CATEGORY
This airplane is not designed for purely aerobatic flight. However, in
the acquisition of various certificates such as commercial pilot and flight
instructor, certain maneuvers are required by the FAA. All of these
maneuvers are permitted in this airplane when operated in the utility
category.
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