Piper Cherokee 140 Owner's Handbook Manual

O!av Kieserud

CHEROKEE I 40

OWNER'S HANDBOOK

753-584

Olav K jesecud

CHEROKEE 140

PA.28.l 40

Owner's Hondbook

Piper Aircraft Cotporotion, Vero Beoch, FlorUo

u.5. A.

NOTICI]

TIIIS IIANDI}OOK IS NO't DESIGNIiD, NOR CAN ANY

H^NDDOOK SERVE, ^S A SUBSTTTUTE FOR ADEQU^TE ^ND

coMpETENT FLIGHT INSTRUCTION, OR KNOWLEDGE OF THE

CURRENT AIRWORTHINES§ DIRECTIVES, THE APPLICABLE

FEDERAL AIR REGULATIONS, AND ADVISORY CTRCULARS. IT

IS NOT INTENDED TO IIE A GUIDI' OF ITASIC }'LIGHT

INSTRUCTION, NOR A TRAINING MANUAI,.

'l'ilrt il^NDD(x)K ls Drist(.;Ntil):

I. TO IIELID YOU OI'IiRA'I'E YOUR CHIIROKIiI' WITII

SA I.'ETY AND CONIIIDENCE.

2, TO MORE FULLY ^CQU^rNT yOU WITH THE BASIC

PERFORMANCE AND HANDLING CHARACTERISTICS

OFTHE AIRPLANE.

3. TO MORE FULLY EXPLAIN YOUR CHEROKEE'S

OPERÅTION THAN IS PERMISSIBLE TO SET FORTH IN

THE AIRPLANE FLIGHT MANUAL.

IF THERE IS ANY INCONSISTENCY BETIVEEN THIS

HANDBOOK AND THE AIRPLANE FLIGHT MANUAL APPROVED

BY THE F.A,A., THE AIRPLANE FLIGHT MANUAL SHALL

GOVERN.

Revised text and illustrations shall be indicated by a

black vertical line in the margin opposite the change,

A line opposite the page number will indicate that

materi al was relocated.

Additional copies of this manual, Part No. 753 584,

may be obtained from your Piper Dealcr.

Published by

PUB UCATIONS DEPARTMENT

Piper Aircraft Corporation

753 5U

Issu«l: Febnrary 1964

Revised: March l. l99l

SECT|ON I

SPECIFICATION FEATURES

Performance .

Weights

Power Planc.

FueI and Oil

Baggage

Dimens ions.

Landing Gear .

THE PIPER CHEROKEE SECTION

sEcfloN I

SPECIFICATION FEATURES

PERFORMANCE

Tetc-off Di.Btaræ Over 50 ft. Obsracle (fr.) (fl8ps up) lsm I r?00

Best Rate of CUmb Spæd (hph) 85 I Ss

Rrte of CUmD (ft. per mln.) I 820 i 660

Scrvtce Cetllug (ft.) 15, O0O r4,3OO

Absolute Ceiltng f7, OOO ,U. U*

Top $ced (mph) r r4t (r44.) i t39 (r42.)

ClutslnB Sp€ed (75% power, sea level) (mph) 'l r20 (f23.) ' tZt 1tU.1

Optlmum Crulstng Speed pSS potuer, 7000 It., mph) f30 (f33.) I f30 (f33.)

The gross $reighr o, l95O Pq.rnds ln the following perlårmance chÅrts appll,es ,o S{rUf Nos, 28-2OOOO

to 28-20939, uleas the airpleqe has been modilled t

Nos, 28-20940 snd llp hsvc bcen llcenircd from the fa

Perforrutrcq flgues ere for strnderd alrplanes

Ievel or ståld flhltudc. Any dcvistldl from Sta

GRO§S WEIGHTS

Telc-off Ru (It,) (flaps 14)

wer, sea level) 100 (102+) .l r00 (r02r)

. 7.e i 8.4

s.3 I s.o

) 5r5, { hEs. (r20, 6 hr8...) +fO, n frru[ (680, 6 hrs.rr)

) 560 (780..) i 535 (725.+)

Opttmu$ Grulslng Renge (55$ powrr, 10, 0m ft, ) 600 (840..) I 570 (790.r)

'\iltren Fenders Instålled

"With 50 gal. Resene Fæl

730I I 5

SECTION ITHE PIPER CHEROKEE

SPECIFICATION FEATURES: (cont)

PERFORMANCE

I

: lnetruciloul Pover Crutsltrg Range

(50%,pqwer, sea level)

Sta[ln-gSpeed (flaps doyn, mFh)

Landlng Roll (flaps down, fr.)

WEIGHTS

Gross U,eight (lbq. )

Empcy Wetght (Standard) (Ibs.)

USEFUL LOAD (Standard) (lbs.)

Empcy \Yeighr (AutoFlight) (lbs.)

UsEFUl, LOAD (Åu.oFligtrr) (lbs.)

POWER PI.ANT

EEgtne - L}æomlng

Rated Horsepryer md Speed (rpm)

Bore (lo:hes)

Stroke (inches)

. Displaæmetrt (cubic incheE)

CompEesslotr Ratib

Dry Weighr (poutrds)

Oit Sump Capaqity (qts. )

Propeller (Sensentch)

"Wirh 50 gal, Resefle Fuel

aRosri TErGr{Ts

I

640,1 6.s hrs. (89s,

I

t hrs. ti) d50, 6.5 hrs, (910, t hrs. r.)

52 54

48s 53s

r9 50 2r50

650630

o-320-E2A

140 ei 2450

5. r25

3.875

319.8

7:\

272

I

M74DM

2150

l20l

949

t24l

909

o-x20-E2A

150 at 2700

5, t25

3.875

319.8

7i7

8

M74DM

1950

,.180

770

1220

730

1

THE PIPER CHEROKEE SECTION I

SPECIFICATION FEAIURES: (conr)

GROSS WElerrrs

FUEI. AND OIL

Fuel Capaclty (gal. ) Srandard

Fuel Capacity (Sal.) Reserve

Oil Capaclty (qts. )

Fuel Aviation Gradc (Minimum Octenc)

(Spccified Octane)

(Altanctc Fuels)

BAGGAGE

Maximum Baggage (lbs.)

Baggaæ Space (cubic ft.)

DIMENStONS

Wtng Span (ft. )

Wing Area (sq. ft.)

trVing LoadinS Qbs. per sq. ft.)

Length (ft.)

Height (ft.)

Power Loading (lbs. per HP)

IANDING GEAR.

Wheel Base (fr.)

Wheel Tread (ft. )

Tlre kessure (lbs.)

36 36

50 .50

88

80187 80187

80147 80.187

See pegc 3O

200.*.

,'»

r950

30

r60

12.2

23.3

7.3

13. 9

2r50

100

,,

Nose

Main

6.2

10.0

24

30

r60

t3,4

23.3

7.3

r4.3

6.2

r0.0

24

'rtExcept when family seat and sefety belts are installed 340

lbs. ls permitæd.

770527

SECTIONI THE PIPER CHEROKEE

SECTION I

DESIGN INFORAAAT]ON

Engine and Propeller

Stnrctures

Landing Gear

Conrol System

Fuel System

Electrlcal system

Heating and Ventilating System

Cabin Feahrres

5

6

7

8

9

r0

r2

THE PIPER CHEROKEE SECTION II

sEcTtoN il

DESIGN INFORMATION

ENGINE AND PROPELI.ER

The Lycoming o-IZo.EzA enginc inselled in rhe Cherokce

PA-28-140 is ratcd ar l4O horsepowcr ar 2450 rpm or 150 horsepower

"t 27OO rpm..,This cngine has a compression ratio of 7 to I end

requires 8O/87 minimum octanc fucl. Rcfcr to Fuel Rcquiremenrs on

page 30 when using alrcrnarc fuels. The engiae is eguipped with a

gcared startcr, a 35 ampcre alternator, dual magnctos, vacuum pump

drive, a diaphragm-rypc fuel pump and a float carburetor.

Exhaust gases are carried through a system constructed

of heavy gauge stainless steel which incorporates a heater

shroud, to provide cabin heat and carburetor deicing.

The propeller used on the PA-28- I40 is a Sensenich M74DM

fixed-pitch aluminum alloy unit. Its diameter is 74 inches with

a standard pitch of 60* inches, All performance figures are

based on the srandard 60* inch pitch propeller.

Cowling on the Cherokee ts designed to cool the engine in

all normal flight conditions, including protracted climb, with-

out the use of cowl flaps or cooling ftanges.

The throttle is of the push-pull type and is located ir the

lower center of the instrument panel. A knurled friction lock

ls provlded toprevent creepingof the throttle from any desired

position. The mixture control, located in the lower right hand

side of the instrument panel, is a push-pull control llke the

throttle. The full rich posirion is obrained when the control is

full forward, whil.e the full aft position provides an idle cur-off

*58 lnch plrch propellers when gross weight is 2I50.

+*When gross weight is 2150

770527

SECTION II THE PIPER CHEROKEE

for stopping the engine. Intermediate posltlons are used for

leåning the mlxture at ahitudes above sea-level, The carbu-

retor heat control, located to the left of the thronle, provides

maximum carburetor heat when pul.led to its full aft position.

With carburetor heat off, all eugine air passes througtt a high-

efficiency dry-type filter. Therefore, prolonged ground oper-

atlon with carburetorheat"ON" should be avoided, particularly

on unlmproved ftelds as the alr is not flltercd.

STRUCTURES

All structures are of alumlnum alloy conatnrctlon and are

deslgned to ultlmate loed factors weU in excess of normal re-

quirement§. All exterior surfaces are prtmed with etchlng

prlmer and painted wlth acrylic enarnel.

The wlngs are attached to each elde of the fuselage by In-

serting the butt ends of the respective main spars into a spar

box carry through which is an integral part of the fuselage sfruc-

ture, provlding. ln effect, a contlnuoua main spar urith spllces

at each slde of the fuselage. There are also fore and aft at-

tachments at the rear spar and at an auxlliary frmt epar.

The wing airfoil section is a l,aminar flow type, NACA

652-4fS wlth the maximum thicknessabout 40% aft of the tread-

ing edge. This permlts the main spar carrythrough structure to

be located under the rear seat providlng unobstructed cabln

floor space ahead of the rear seat.

TANDING GEAR

The thtee landing gears use a Clevelaod 6O0 x 6 wheel' tbe

main wheels belng provtded with brake drums and Cleveland

single disc hydraul.ic brake assemblies. The nose wheel and the

67m3r

!.- -. - r.'

THE PIPER CHEROKEE SECTION II

main gear both use 600 x 6 four ply tires. All the tires have

tubes.

The nose gear is steerable through a 30 degree arc each

side of neutral by use of the rr.rdder pedals. A spring device is

lncoraorated in the rudderpedal torque tube assembly to aid in

nrdder centering and to provide rudder trim. The nose gear

steering mechanism also lncorporates a hydraulic shimmy

dampener.

The oleo struts are of the air -oil type with normal extension

being 3.25 inches for the nose gear and 4.50 inches for the main

gear under normal static (emptyweigfu of airplane plus full fueI

and oil) Ioad.

The brakes are actuated by a hand leverand master cylin-

der, which is located belowand behind the left centerof the in-

strument sub-panel. The brake fluid reservoir is installed on

the.top Ieft front face of the firavall. The parking brake is in-

corporated in the master cylinder and is actuated by pulting back

on the brake lever, depressirg theknob attached to the left side

of the handle and then releasing the brake lever. To release

theparking brake, puII backon the brakelever to dlsengage the

catch mechanism and allow the handle to swing fonrard.

CONTROT sYsTEM

Dual controls are provided as standard equipment with a

cable system used beEween the controls and the surfaces. The

horizontal tail is of the all movable slab type, with an anti -servo

tab which also acts as a longitudinal trim tab, actuated by a

control on the cabin ceiltng" The stå-bilator provides extra

sta-bility and ss slze, drag, and weiglt

than conventi allerons areprovlded with

a dlfferential eliminate adverse yaw in

ilrning mane the amount of coordlnation

I

67 103 r

SECTION II THE PIPER CHEROKEE

requtred in normal turns.

The flaps are manually operated, balanced for light oper-

ating forces and spriog loaded to turn to the up position- A

past-center lock incorporated in the actuating linkageholds the

flap when it is in the up position so that it may be used as a

step on the rlght side. The flap will not support a step load ex-

cept when in the full up position, so it must be completely re-

tracted when useda§ a step, The flaps have threeextended po-

sitions, 10, 25 and 40 degrees.

FUEL SYSIEM

Fuel is stored in two twenty-five gallon tanks whlch are

secured to the leading edge structure of each wing by screws

and nut plates. This allows easy removal for service or in-

spection.

The standard quantity of fuel is 36 gallons for the Cherokee

140. Toobtain the standard quantity of fuel, fill the tanks tothe

bottom of the filler neck indicator.

An auxiliary electric fuel pump lsprovided for use in case

of failure of the engine driven pump. The electric pump should

be on for all take-offs and landings. The fuel strainer, which

is equipped with a quick drain,

is located on the front Iower

left corner of the firewall.

This strainer should be draln-

ed regularly to check for rvater

or sediment accumulation. To

drain the lines from the tanks,

650630

THE PIPER CHEROKEE SECTION II

the tank selector valve must be switched to each tank in turn,

with the electric pump on, and the gascolatordrainvalve open-

ed. Each tank has an individual qulck drain located at the bot-

tom, inboard, rear corner.

Fuel quantity and pressure are indicated ongauges located

in the engine gauge cluster on the right side of the instrument

panel,

ELECTRICAT SYSTEM

The Cherokeeisequippedwith thepiper F.T.p. (Full Time

Power) Electrical System, ICs 12 volt alternatorprovides elec-

trical power at all engine speeds and results in improved per-

formance for radlo and electrical equipment and longerbattery

life. In additionto thealternator, the electrical system includes

a 25 ampere-hour baEery, a voltage regulator and a master

switch relay. The battery and relay are mounted beneath the

baggage compartment floor. Access for service or inspection

is obtained by raising the hinged baggage compartment floor

panel. The battery box is designed to accommodate a Larger

capacity battery for extreme cold weather operation.

Electrical switches, fuses

and fuse spares are located on

the lower left side of the in-

strument panel.

Standard electrical acce s -

sories, in additiontothose al-

ready Iisted, include a starter,

stall warning indicator, cigar

lighter and ammeter. Mvi-

gation lights, anti-collision

light, landing Iight, instrumenr

lighting and a cabin dome light

are offered as optional acces-

6s0630

SECTION tr THE PIPER CHEROKEE

sorles.

Circult provlslons are made to handle optlonal commun-

lcatlons and navlgational equipment.

In conventlonal generator systems, the ammeter indicates

battery discharge. In the Piper FullTime Powerelectrlcal sys-

tem, the ammeter displays the load in amperes placed on the

system at any given time. Wtth all electricalequlpment except

the master switch in the "OFF" positionr the ammeter will in-

dicate the amount ofcharging current demandedby the battery.

This amount will vary and depends on the percentage of full

clørge on the battery at tåe time. When the banery becomes

charged, the current dlsplaeed on the ammeter will reduce to

a mlnimum value of about two amperes. As each unit of elec-

trical equlpment ls swltched on the amount of current ir draws

will be shown on the ammeter. The maximum cqltlnuous load

for nlght flight with all equipment on is approximately thirty

amperes, Thts thlrty ampere s plus approximately two amperes

for the futly charged batterywill appear conriouously under these

flight condittoos.

Because of the mechanical simpliclty of the alternator,

matnteoance should prove to be a minor factor as compared

to prevlous systems. Should service be requlred, contact your

local Piper dealer.

HEATING AND VENTII.ATING SYSTEM

Heat for the cabln lnterlor and the defroster system is pro-

vided by a heater muff attached to the exbaust system. Con-

trols fof these systems are locatedon the lower right hand side

of the instrument panel. A third confrol in this area regulates

a large fresh air vent located on the left hand stde of the cabin

near the pllot's feet. In addition, two side vents are provided

one at each seat location. Th"y may be tndependentlyregulated

as desired by the seat occupant.

IO 6s0630

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Piper Cherokee 140 Owner's Handbook Manual

Piper Cherokee 140 Owner's Handbook Manual

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