Cessna 172 Skyhawk SERIES Installationsanleitung

CESSNA 172 TRAINING MANUAL

by D. Bruckert & O. Roud 2006 29

Illustration 3c Control Y

CESSNA 172 TRAINING MANUAL

Trim System

The Cessna 172 aircraft has a manually o erated rudder and elevator trim

system.

One trim tab is rovided on the right side of the elevator, s anning most of the

the rear section of the right elevator. The trim tab moves o osite to the control

surface, reducing the aerodynamic force on the control surface in order to hold

the selected osition. Trimming is accom lished through the elevator trim tab by

turning the vertically mounted trim control wheel. Forward (u ) rotation of the

by D. Bruckert & O. Roud 2006 30

ELEVATOR TRIM:

NEW MODELS ELEVATOR TRIM:

OLDER MODELS

Illustration 3d Trim tab Travel

Illustration 3e Trim Wheel

CESSNA 172 TRAINING MANUAL

trim wheel will trim nose-down, conversely, aft (down) rotation will trim nose-

u . The trim tab control wheel de ending on the model may be mounted on the

centre console or in the cock it floor. A ortion of the wheel extends through the

control wheel cover and when rotated, o erates the tab through roller chains,

cables, an actuator, and a ush- ull rod. A osition indicator at the trim tab

control wheel indicates nose attitude of the aircraft.

A rudder trim system

is installed in later

models to rovide a

means of directional

trim. The

system increases

directional stability

and is es ecially

useful during climb-

out o erations

when the engine is

o erating at nearly

full ower and the

aircraft forward s eed

relatively low. The

trim com ensates for

engine torque by

a lying slight rudder

control in

the direction

necessary for

maintaining straight

forward flight. During

cruise, the rudder

trim may be adjusted to maintain balance for any ower setting and airs eed.

The rudder trim, if installed, is o erated by either a rudder trim control tab or

control wheel mounted on the centre control edestal.

With a rudder trim control wheel, rotation of the control wheel to the right

rovides "NOSE RIGHT" trim, and left rotation rovides "NOSE LEFT" trim. A

rudder trim osition indicator indicates the trim setting when the trim control

wheel is adjusted.

With a trim lever, trimming is accom lished by lifting the trim lever u to clear a

detent, then moving it either left or right to desired trim osition (as shown in

the icture below). Moving the trim to the right will trim nose-right, conversely,

moving the lever to the left will trim nose-left.

The rudder trim control is connected via a bell crank to a bungee, which is

directly connected to the rudder edal control bar and thus to the rudder itself.

by D. Bruckert & O. Roud 2006 31

Illustration 3f Trim Connections

CESSNA 172 TRAINING MANUAL

Typical IFR Ra io Installation (Conventional Aircraft)

The icture below illustrates a full IFR avionics stack on older models of aircraft.

From to : Audio Selector, GPS, Com 1/Nav 1, Com 2/Nav 2, Trans onder, ADF

by D. Bruckert & O. Roud 2006 84

Illustration 10e IFR Radio Stack

CESSNA 172 TRAINING MANUAL

FLIGHT OPERATIONS

PRE-FLIGHT CHECK

The reflight ins ection should be done in anticlockwise direction as indicated in

the flight manual, beginning with the interior ins ection.

by D. Bruckert & O. Roud 2006 85

CESSNA 172 TRAINING MANUAL

Cabin

Ensure the required documents (certificate of airworthiness, maintenance

release, radio license, weight and balance, flight folio, flight manual, and any

other flight s ecific documents) are on board and valid.

Ensure the aircraft flight manual, and su orting documents are available and

accessible in flight.

Check all required emergency equi ment for condition, location, and

serviceability.

Perform a visual ins ection of the anel from right to left to ensure all

instruments and equi ment are in order, including the following items.

Control lock – REMOVE

Ignition switch – OFF

Lights – OFF exce t beacon

Master switch – ON

Fuel quantity – CHECK

Fla lever – full DOWN (electrical)

Master switch – OFF

Fuel selector valve – CORRECT TANK

G1000 Mo els

Additionally for G1000 equi ed aircraft the following items need to be checked

after selecting the master switch on:

Ensure PFD dis lay visible, check the required annunciators are dis layed.

Confirm both avionics fans are o erational – turn on each of the avionics buses

se arately and confirm the fan can be heard.

Turn the master switch OFF

Test the standby battery – hold in the TEST osition for a rox 20 seconds

ensure green light remains on. (This test is described before start in the POH,

however if the standby bettery is required for flight it is referable to com lete

the test now).

C172RG

Confirm gear is down before turning master switch on.

Operational Check of Lights

Before turning the master switch off, if lights are required, switch all lights on,

confirm visually that all are o erational, then turn all off again exce t beacon.

This is required for a night flight and a good idea for all flights.

by D. Bruckert & O. Roud 2006 86

CESSNA 172 TRAINING MANUAL

Exterior Inspection

Visually check the air lane for general condition during the walk-around

ins ection, ensuring all surfaces are sound and no signs of structural damage,

worked rivets, missing screws, lock wires or loose connections.

Tail Section

Check to , bottom, and side surfaces

for any damage, ensure balance weights

and fairings secure.

Ensure elevator and trim secure and

undamaged, linkages free and

unobstructed, check full and free

movement of elevator.

Check rudder linkages and turn-buckles

secure, unobstructed, and elevator has

free movement (do not check full

movement with nose wheel on the

ground).

Check lower tail and tie down for any

sign of tail strike.

Check beacon, aerials and rear

navigation light undamaged and

secure.

by D. Bruckert & O. Roud 2006 87

Andere Handbücher für 172 Skyhawk SERIES

Inhaltsverzeichnis

Andere Cessna Flugzeug Handbücher

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Cessna 1977 F 172N Bedienungsanleitung

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Cessna 182 Installationsanleitung

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Cessna 172R Betriebsanleitung

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MAULE M-7-235B Technische Daten

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