Cessna 1980 172RG Cutlass Pilot Operating Handbook Download

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CESSNA

SECTION 5

MODEL 172RG

PERFORMANCE

SECTION 5

PERFORMANCE

TABLE OF CONTENTS

Page

Introduction ........................................................................................................ 5-3

Use of Performance Charts ............................................................................. 5-3

Sample Problem .................................................................................................5-3

Takeoff..........................................................................................................5-4

Cruise............................................................................................................5-5

Fuel Required ..............................................................................................5-5
Landing.........................................................................................................5-7

Demonstrated Operating Temperature.........................................................5-7
Figure 5-1, Airspeed Calibration - Normal Static Source ........................5-8

Airspeed Calibration - Alternate Static Source.....................5-9

Figure 5-2, Temperature Conversion Chart ...............................................5-10
Figure 5-3, Stall Speeds................................................................................. 5-11
Figure 5-4, Takeoff Distance - 2650 Lbs ......................................................5-12

Takeoff Distance - 2500 Lbs And 2300 Lbs ............................ 5-13

Figure 5-5, Maximum Rate Of Climb..........................................................5-14
Figure 5-6, Time, Fuel, And Distance To Climb -

Maximum Rate Of Climb................................................... 5-15

Time, Fuel, And Distance To Climb -

Normal Climb .......................................................................5-16

Figure 5-7, Cruise Performance - 2000 Feet ...............................................5-17

Cruise Performance - 4000 Feet...............................................5-18
Cruise Performance - 6000 Feet...............................................5-19
Cruise Performance - 8000 Feet...............................................5-20
Cruise Performance - 10,000 Feet............................................5-21
Cruise Performance - 12,000 Feet............................................5-22

Figure 5-8, Range Profile - 44 Gallons Fuel .............................................. 5-23

Range Profile - 62 Gallons Fuel .............................................. 5-24

Figure 5-9, Endurance Profile - 44 Gallons Fuel ...................................... 5-25

Endurance Profile - 62 Gallons Fuel ...................................... 5-26

Figure 5-10, Landing Distance......................................................................5-27

1 July 1979

5-1/(5-2 blank)

CESSNA

SECTION 5

MODEL 172RG

PERFORMANCE

I NTRODUCTION

Performance data charts on the following pages are presented so that

you may know what to expect from the airplane under various conditions,
and also, to facilitate the planning of flights in detail and with reasonable
accuracy. The data in the charts has been computed from actual flight tests
with the airplane and engine in good condition and using average piloting
techniques.

It should be noted that the performance information presented in the

range and endurance profile charts allows for 45 minutes reserve fuel at
the specified cruise power. Fuel flow data for cruise is based on the
recommended lean mixture setting. Some indeterminate variables such as
mixture leaning technique, fuel metering characteristics, engine and
propeller condition, and air turbulence may account for variations of 10%
or more in range and endurance. Therefore, it is important to utilize all
available information to estimate the fuel required for the particular

flight.

USE OF PERFORMANCE CHARTS

Performance data is presented in tabular or graphical form to illus-

trate the effect of different variables. Sufficiently detailed information is
provided in the tables so that conservative values can be selected and used
to determine the particular performance figure with reasonable accuracy.

SAMPLE PROBLEM

The following sample flight problem utilizes information from the

various charts to determine the predicted performance data for a typical
flight. The following information is known:

AIRPLANE CONFIGURATION

Takeoff weight

2600 Pounds

Usable fuel

44 Gallons

TAKEOFF CONDITIONS

Field pressure altitude

1500 Feet

Temperature