Cessna 150 1974 User manual

For Training Purposes Only

For Training Purposes Only

CONGRATULATIONS .
Welcome to the ranks of Cessna owners! Your Cessna has been designed and con-
structed to give you the most in performance, economy, and comfort. It is our de-
sire that you will find flying it, either for business or pleasure, a pleasant and
profitable experience.
This Owner's Manual has been prepared as a guide to help you get the most pleasure
and utility from your Model 150. It contains information about your Cessna's equip-
ment, operating procedures, and performance; and suggestions for its servicing and
care. We urge you to read it from cover to cover, and to refer to it frequently.
Our interest in your flying pleasure has not ceased with your purchase of a Cessna.
World-wide, the Cessna Dealer Organization backed by the Cessna Service Depart-
ment stands ready to serve you. The following services are offered by most Cessna
Dealers:
THE CESSNA WARRANTY -- It is designed to provide you with the most
comprehensive coverage possible:
a. No exclusions
b. Coverage includes parts and labor
c. Available at Cessna Dealers world wide
d. Best in the industry
Specific benefits and provisions of the warranty plus other important
benefits for you are contained in your Customer Care Prograni book
supplied with your aircraft. Warranty service is available to you at
any authorized Cessna Dealer throughout the world upon presentation
of your Customer Care Card which establishes your eligibility under
the warranty.
FACTORY TRAINED PERSONNEL to provide you with courteous expert
service.
FACTORY APPROVED SERVICE EQUIPMENT to provide you with the
most efficient and accurate workmanship possible.
A STOCK OF GENUINE CESSNA SERVICE PARTS on hand when you
need
them. ·
THE LATEST AUTHORITATIVE INFORMATION FOR SERVICING
CESSNA AIRPLANES,
since Cessna Dealers have all of the Service
Manuals and Parts Catalogs, kept current by Service Letters and
Service News Letters, published by Cessna Aircraft Company.
We urge all Cessna owners to use the Cessna Dealer Organization to the fullest.
A current Cessna Dealer Directory accompanies your new airplane. The Directory
is revised frequently, and a current copy can be obtained from your Cessna Dealer.
Make your Directory one of your cross-country flight planning aids; a warm welcome
awaits you at every Cessna Dealer.
For Training Purposes Only

ii
*
Maximum height of airplane with nose gear depressed, all tires and nose strut
properly inflated, and optional flashing beacon installed.
**Maximum wing span if optional conical camber wing tips and optional strobe.
lights are installed. If standard wing tips without strobe lights are installed,
wing span is 32'-81/2",
PRINCIPAL
DIMENSIONS
0
r-
' -----**33·_4"------
-~,==~~~~~~-,-~~~~-
For Training Purposes Only

TABLE OF CONTENTS
============================================= Page =
SECTION I - OPERA TING CH ECK LIST -------- 1-1
SECTION II - DESCRIPTION AND
OPERATING DETAILS ------------- 2-1
SECTION Ill - EMERGENCY PROCEDURES----- 3-1
SECTION IV - OPERA TING LIM IT A TIONS -------- 4-1
SECTION V - CARE OF THE AIRPLANE ________ 5-1
SECTION VI - OPERATIONAL DA TA ______________ 6-1
SECTION VII- OPTIONAL SYSTEMS ______________ 7-1
This manual describes the operation and performance of
the Model 150, the Trainer, and the Commuter. Equipment
described as "Optional" denotes that the subject equipment
is optional on the Model 150. Much of this equipment is stand-
ard on the Trainer and Com muter.
iii
For Training Purposes Only

For Training Purposes Only

Section I
------------------------------ .Snr ..... -...
_______________________________________________________ .,,, ..... ___
OPERATING CHECK LIST
One of the first steps in obtaining the utmost performance, service,
and flying enjoyment from your Cessna is to familiarize yourself with your
airplane's equipment, systems, and controls. This can best be done by
reviewing this equipment while sitting in the airplane. Those items whose
function and operation are not obvious are covered in Section II.
Section I lists, in Pilot's Check List form, the steps necessary to
operate your airplane efficiently and safely. It is not a check list in its
true form as it is considerably longer, but it does cover briefly all of the
points that you should know for a typical flight. An abbreviated check list
covering the "Before Take-Off" and "Before Landing" phases of aircraft
operation is provided on a plastic card and normally stowed in the map
compartment. This abbreviated check list is a convenient reference of key
items to be rechecked immediately prior to taxiing into position for take-
off and before entering the final approach for landing.
The flight and operational characteristics of your airplane are normal
in all respects. There are no unconventional characteristics or oper-
ations that need to be mastered. All controls respond in the normal way
within the entire range of operation. All airspeeds mentioned in Sections
I, II and III are indicated airspeeds. Corresponding calibrated airspeeds
may be obtained from the Airspeed Correction Table in Section VI.
BEFORE ENTERING THE AIRPLANE.
(1) Make an exterior inspection in accordance with figure 1-1.
1-1
For Training Purposes Only

CD a.
b.
c.
d.
Note
Refer to inside back cover of this manual
for quantities, materials, and specifications
of frequently used service items.
Visually check aircraft for general condition during walk-
around inspection. In cold weather, remove even small
accumulations of frost, ice or snow from wing, tail and
control surfaces. Also, make sure that control surfaces
contain no internal accumulations of ice or debris. If
night flight is planned, check operation of all lights, and
make sure a flashlight is available.
Remove control wheel lock.
Check ignition switch "OFF.
11
Turn on master switch and check fuel quantity indicators, then
turn master switch "OFF.
11
Check fuel shutoff valve handle "ON."
........................................................... Figure
1-2
For Training Purposes Only

@a.
b.
c.
@ a.
© a.
b.
c.
®a.
b.
c.
d.
e.
f.
g.
h.
®
a.
b.
0
a.
b.
c.
d.
®
a.
1-1.
Remove rudder gust lock, if installed.
Disconnect tail tie-down.
Check control surfaces for freedom of movement and security.
Check aileron for freedom of movement and security.
Disconnect wing tie-down.
Check main wheel tire for proper inflation.
Visually check fuel quantity, then check fuel filler cap secure.
Check oil level. Do not operate with less than four quarts.
Fill to six quarts for extended flight.
Before first flight of the day and after each refueling, pull out
strainer drain knob for about four seconds to clear fuel sys-
tem of possible water and sediment. After draining, make
sure that strainer drain is closed. If water is observed in
this check, the system may contain additional water, and the
wing tank sump drain plugs and fuel line drain plug should be
removed to check for the presence of water.
Check propeller and spinner for nicks and security.
Check carburetor air filter for restrictions by dust or other
foreign matter.
Check landing light for condition and cleanliness.
Check nose wheel strut and tire for proper inflation.
Disconnect nose tie-down.
Inspect flight instrument static source opening on left side
of fuselage for stoppage.
Visually check fuel quantity, then check fuel filler cap secure.
Check main wheel tire for proper inflation.
Remove pi tot tube cover, if installed, and check pitot tube
opening for stoppage.
Check stall warning vent opening for stoppage.
Check fuel tank vent opening for stoppage.
Disconnect wing tie-down.
Check aileron for freedom of movement and security.
1-3
For Training Purposes Only

BEFORE STARTING THE ENGINE.
(1) Seats, Seat Belts, and Shoulder Harnesses -- Adjust and lock.
(2) Fuel Shutoff Valve Handle -- "ON.
11
(3) Brakes -- Test and set.
(4) Radios and Electrical Equipment -- "OFF.
11
STARTING THE ENGINE.
(1) Carburetor Heat -- Cold.
(2) Mixture -- Rich.
(3) Primer -- As required.
(4) Throttle -- Open 1/4 inch.
(5) Master Switch -- "ON."
(6) Propeller Area -- Clear.
(7) Ignition Switch -- "START" (release when engine starts).
(8) Oil Pressure -- Check.
BEFORE TAKE-OFF.
(1) Cabin Doors -- Latched.
(2) Flight Controls -- Check for free and correct movement.
(3) Elevator Trim Control Wheel -- "TAKE-OFF
1'
setting.
(4) Throttle Setting -- 1700 RP.M.
(5) Engine Instruments -- Within green arc.
(6) Suction "'Gage -- Check in green arc (4. 6 to 5. 4 inches of mercury).
(7) Magnetos -- Check (RPM drop should not exceed. 150 RPM on
either magneto or 75 RPM differential between magnetos).
(8) Carburetor Heat -- Check operation.
(9) Flight Instruments and Radios - - Set.
(10) Throttle Friction Lock -- Adjust.
TAKE-OFF.
NORMAL TAKE-OFF.
1-4
(1) Wing Flaps - - Up.
(2) Carburetor Heat - - Cold.
(3) Throttle - Full "OPEN. "
For Training Purposes Only

(4) Elevator Control -- Lift nose wheel at 55 MPH.
(5) Climb Speed - - 70 to 80 MPH.
MAXIMUM PERFORMANCE TAKE-OFF.
(1) Wing Flaps -- Up.
(2) Carburetor Heat - - Cold.
(3) Brakes -- Hold.
(4) Throttle -- Full "OPEN."
(5) Brakes -- Release.
(6) Elevator Control -- Slightly tail low.
(7) Climb Speed -- 70 MPH (with obstacles ahead).
ENROUTE CLIMB.
(1) Airspeed -- 75 to 85 MPH.
NOTE
If a maximum performance climb is necessary, use speeds
shown in the Maximum Rate-Of-Climb Data Chart in Section
VI.
(2) Throttle -- Full "OPEN."
(3) Mixture -- Rich (unless engine is rough).
CRUISING.
(1) Power -- 2000 to 2750 RPM.
(2) Elevator Trim Control Wheel - - Adjust.
(3) Mixture -- Lean to maximum RPM.
BEFORE LANDING.
(1) Mixture -- Rich.
(2) Carburetor Heat -- Apply full heat before closing throttle.
(3) Airspeed -- 70 to 80 MPH (flaps up).
(4) Wing Flaps -- As desired below 100 MPH.
(5) Airspeed -- 60 to 70 MPH (flaps extended).
1-5
For Training Purposes Only

BALKED LANDING (GO-AROUND).
(1) Throttle -- Full "OPEN."
(2) Carburetor Heat - - Cold.
(3) Wing Flaps -- Retract to 20°.
( 4) Upon reaching an airspeed of approximately 65 MPH,
retract flaps slowly.
NORMAL LANDING.
(1) Touchdown -- Main wheels first.
(2) Landing Roll -- Lower nose wheel gently.
(3) Braking -- Minimum required.
AFTER LANDING.
(1) Wing Flaps - - Up.
(2) Carburetor Heat -- Cold.
SECURING AIRCRAFT.
1-6
(1) Parking Brake -- Set.
(2) Radios and Electrical Equipment - - "OFF. "
(3) Mixture -- Idle cut-off (pulled full out).
(4) Ignition and Master Switches - "OFF."
(5) Control Lock -- Installed.
For Training Purposes Only

1-7
For Training Purposes Only

1-8
INSTRUMENT PANEL
234567 89
1. Turn Coordinator (Opt.)
2. Airspeed Indicator
3. Directional Gyro (Opt.)
4. Gyro Horizon (Opt.)
5. Clock (Opt.)
6. Aircraft Registration Number
7. Vertical Speed Indicator (Opt.)
8. Altimeter
9. Marker Beacon Indicator
Lights and Switches/Radio
Transmitter Selector Switch
(Opt.)
10. Omni Course Indicator (Opt.)
11. ADF Bearing Indicator (Opt.)
12. Rear View Mirror and Control
(Opt.)
l:l. Radios (Opt.)
14. Tachometer
15. Optional Instrument Space
16. Fuel and Oil Gages
17. Suction Gage (Opt.)
18. Ammeter
19. Over-Voltage Warning Light
20. Map Compartment
21. Cabin Air/Heat Control Knobs
22. Wing
Flap Switch
Figure 2-1.
23. Cigar Lighter (Opt.)
24. Mixture Control Knob
25. Throttle (With Friction Lock)
26. Microphone (Opt.)
27. Elevator Trim Control Wheel
28.
Carburetor Heat Control Knob
29.
Electrical Switches
30. Fuses
31. Radio Dial Light Rheostat
32. Panel Lights Rheostat
33. Ignition/Starter Switch
34.
Master Switch
35. Primer
36. Parking Brake Knob
For Training Purposes Only

Section II
---------------------------- .tnz .............
----~-------------------------------------------- __ ,,, ......... _
DESCRIPTION AND OPERATING DETAILS
The following paragraphs describe the systems and equipment whose
function and
operation is not obvious when sitting in the airplane. This
section also covers in somewhat greater detail some of the items listed
in Check List form in Section I that require further explanation.
FUEL SYSTEM.
Fuel is supplied to the engine from two tanks, one in each wing.
From these tanks, fuel flows by gravity through a fuel shutoff valve and
fuel strainer to the carburetor.
Refer to figure 2-2 for fuel quantity data. For fuel system servicing
information, refer to Servicing Requirements on the inside back cover.
LONG RANGE FUEL TANKS.
Special wings with long range fuel tanks are available to replace the
FUEL QUANTITY DATA (U.S. GALLONS)
USABLE FUEL
UNUSABLE
TOTAL
TANKS
ALL FLIGHT
FUEL
FUEL
CONDITIONS VOLUME
TWO, STANDARD WING
22.5
3.5
26.0
(13 GAL. EACH}
TWO, LONG RANGE WING
35.0
3. 0
38.0
{19 GAL. EACH}
Figure 2-2.
2-1
For Training Purposes Only

FUEL SYSTEM
SCHEMATIC
VENT
2-2
LEFT FUEL TANK
FUEL SHUTOFF
VALVE
Due to cross-feeding between fuel
tanks, the tanks should be re-
topped after each refueling to
assure maximum capacity.
rFu~
I 22.5 GALS I
i ON c::::::ID:
I I
L--~
:::::::-:::::
CODE
ENGINE
PRIMER
!::::::::::::! FUEL SUPPLY
c:::::::J VENT
MECHANICAL
LINKAGE
CARBURETOR
TO ENGINE
CYLINDERS
•
Figure 2-3.
RIGHT FUEL TANK
THROTTLE
MIXTURE
CONTROL
KNOB
For Training Purposes Only

standard wings and fuel tanks for greater endurance and range.
ELECTRICAL SYSTEM.
Electrical energy is supplied by a 14-volt, direct-current system
powered by an engine-driven alternator (see figure 2-4). A 12-volt
battery is located on the right, forward side of the firewall just inside the
cowl access door. Power is supplied through a single bus bar; a master
switch controls this power to all circuits, except the engine ignition sys-
tem, optional clock and optional flight hour recorder (operative only when
the engine is operating).
MASTER SWITCH.
The master switch is a split- rocker type switch labeled "MASTER, "
and is "ON" in the up pos~tion and "OFF" in the down position. The right
half of the switch, labeled "BAT," controls all electrical power to the
airplane. The left half, labeled "ALT," controls the alternator.
Normally, both sides of the master switch should be used simulta-
neously; however, the "BAT" side of the switch could be turned "ON"
separately to check equipment while on the ground. The "ALT" side of
the switch, when placed in the "OFF" position, removes the alternator
from the electrical system.' With this switch in the "OFF" position, the
entire electrical load is placed on the battery. Continued operation with
the alternator switch "OFF" will reduce battery power low enough to open
the battery contactor, remove power from the alternator field, and pre-
vent alternator restart.
AMMETER.
The ammeter indicates the flow of current, in amperes, from the al-
ternator to the battery or from the battery to the aircraft electrical sys-
tem. When the engine is operating and the master switch is "ON," the
ammeter indicates the charging rate applied to the battery. In the event
the alternator is not functioning or the electrical load exceeds the output
of the alternator, the ammeter indicates the discharge rate of the battery.
2-3
For Training Purposes Only

ELECTRICAL SYSTEM
OVER-
VOLTAGE
WARNING
LIGHT
..:..
/
-
BATTERY
GROUND SERVICE
PLUG RECEPTACLE (OPT)
CODE
@ CIRCUIT BREAKER (AUTO-RESET)
Q) CIRCUIT BREAKER (PUSH.TO-RESET)
• FUSE * DIODE /1111'1 RESISTOR
~ ~ CAPACITOR (NOISE FILTER)
MAGNETOS
Figure 2-4.
2-4
SCHEMATIC
TO IGNITION /STARTER
SWITCH
TO WING FLAP SYSTEM
TO LANDING
LIGHT (OPT)
TO WING TIP STROBE
LIGHTS (OPT)
TO FLASHING
BEACON (OPT)
TO PITOT HEAT
SYSTEM (OPT)
TO NAVIGATION LIGHTS
AND OPTIONAL CONTROL
WHEEL MAP LIGHT
TO .TRANSMITTER RELAY
TO DOME LIGHT
TO RADIO (OPT)
TO RADIO (OPT)
TO OPTIONAL TURN
COORDINATOR OR
OPTIONAL TURN-AND.
BANK INDICATOR
TO INSTRUMENT AND
COMPASS LIGHTS
TO FUEL QUANTITY
INDICATORS
For Training Purposes Only

OVER-VOLTAGE SENSOR AND WARNING LIGHT.
The aircraft is equipped with an automatic over-voltage protection
system consisting of an over-voltage sensor behind the instrument panel
and a red warning light, labeled "HIGH VOLTAGE", near the ammeter.
In the event an over-voltage condition occurs, the over-voltage sen-
sor automatically removes alternator field current and shuts down the
alternator. The red warning light will then turn on, indicating to the
pilot that the alternator is not operating and the aircraft battery is sup-
plying all electrical power.
The over-voltage sensor may be reset by turning the master switch
off and back on again. If the warning light does not illuminate, normal
alternator charging has resumed; however, if the light does illuminate
again, a malfunction has occurred, and the flight should be terminated
as soon as practical.
The over-voltage warning light may be tested by momentarily turning
off the "ALT" portion of the master switch and leaving the "BAT" portion
turned on. ·
FUSES AND CIRCUIT BREAKERS.
Fuses on the left lower portion of the instrument panel protect the
majority of electrical circuits in the airplane. Labeling below each fuse
retainer indicates the circuits protected by the fuses. Fuse capacity is
shown on each fuse retainer cap. Fuses are removed by pressing the
fuse retainers inward and rotating them counterclockwise until they dis-
engage. The faulty fuse may then be lifted out and replaced. Spare fuses
are held in a clip inside the map compartment.
NOTE
A special "SLO-BLO" fuse protects the wing flaps circuit.
If this fuse is replaced, care should be taken to assure
that the replacement fuse is oI the proper type and capa-
city. A "SLO-BLO" fuse is identified by an integrally
mounted spring encircling the fuse element.
Two additional fuses are located adjacent to the battery; one fuse pro-
tects the battery contactor closing circuit, and the other fuse protects the
optional clock and optional flight hour recorder circuits.
The airplane utilizes three circuit breakers for circuit protection. A
2-5
For Training Purposes Only

"push-to-reset" ci~cuit breaker (labeled "ALT") is located on the left
side of the instrument panel near the fuses and protects the alternator cir-
cuit. The alternator field and wiring is protected by an automatically re-
setting circuit breaker mounted behind the left side of the instrument
panel. The cigar lighter has a manually reset type circuit breaker mount-
ed directly on the back of the lighter behind the instrument panel.
When
more than one radio is installed, the radio transmitter relay
(which is a part of the radio installation) is protected by the fuse labeled
"NAV-DOME." It is important to remember that any malfunction in other
systems protected by this fuse (navigation lights, dome light, or optional
control wheel map light) which causes the fuse to open will de-activate
these systems and the transmitter relay. In this event, the switches for
these lighting systems should be turned off to isolate the circuits; then
replace the "NAV-DOME" fuse to re-activate the transmitter relay and
permit its usage. Do not turn on any of the lights protected by the fuse
until the malfunction has been corrected.
LIGHTING EQUIPMENT.
EXTERIOR LIGHTING.
Conventional navigation lights are located on the wing tips and top of
the rudder. Optional lighting includes a single landing light or dual land-
ing/taxi lights in the cowl nose cap, a flashing beacon on the top of the
vertical fin, and a strobe light on each wing tip. All exterior lights are
controlled by rocker type switches on the left switch and control panel.
The switches are "ON'' in the up position and "OFF" in the down position.
The flashing beacon should not be used when flying through clouds or
overcast; the flashing light reflected from water droplets· or particles in
the
atmosphere, particularly at night, can produce vertigo and loss of
orientation.
The two high intensity strobe lights will enhance anti-collision pro-
tection. However, the lights should be turned off when taxiing in the
vicinity
of other aircraft, or during flight through clouds, fog or haze.
INTERIOR LIGHTING.
Illumination of the instrument panel is provided by red flood lighting
in the forward portion of the overhead console. The magnetic compass
2-6
For Training Purposes Only