Revision

Question 1

What is AUM

Answer 1

All Up Mass

Question 2

How to convert US Gallon - Imp Gallon

Answer 2

/1.2

Question 3

How to convert Imp Gal - US gal

Answer 3

X 1.2

Question 4

How to convert US Gal - Litres

Answer 4

X 3.785

Question 5

How to convert Imp Gal - Litres

Answer 5

/ 4.546

Question 6

Convert Imp Gal - Kgs

Answer 6

X 10 x SG

Question 7

Convert litres - Kgs

Answer 7

X SG

Question 8

Convert Lbs - Kgs

Answer 8

X 0.454

Question 9

Convert Kgs - Lbs

Answer 9

X 2.205

Question 10

Low pressure = which direction of air

Answer 10

Anti clockwise in northern hemisphere

Question 11

Who are load sheets prepared by and approved by

Answer 11

Prepared by the dispatcher

Approved by commander

Question 12

How long are load sheets kept for

Answer 12

3 months

Question 13

What is BEM

Answer 13

Basic empty mass. This is the mass of the aeroplane

Question 14

What is BEM

Answer 14

Mass of a basic empty aeroplane plus standard items e.g safety equipment full quantity of operating fluids e.g oils hydraulic fluid and supplementsry electronic equipment e.g EFB

Question 15

What is DOM

Answer 15

Dry operating mass. Consists of;

Everything required for the operation of the flight minus fuel.

Crew - catering - passenger service equipment - potable water

Question 16

What is OM

Answer 16

Operating mass is the mass of the plane ready to operate a flight.

So DOM + take off fuel

Question 17

What is ZFW

Answer 17

This is the zero fuel mass total mass of the plane minus fuel.

So DOM + Traffic load (passengers and cargo)

Question 18

What is TOM

Answer 18

Take off mass. Mass of plane at take off

Question 19

What is useful load

Answer 19

Useful load also called disposable load is the revenue part of mass.

Traffic load + take off fuel

Question 20

What is contingency fuel

Answer 20

5% of trip fuel, allowances in case of small changes to fuel burn en route

Question 21

What is regulated TOM

Answer 21

Regulated TOM is lowest of PLTOM and MSTOM

Question 22

Define 3 methods of carrying cargo

Answer 22

Pallets
ULD
Bulk

Question 23

What is area load limit

Answer 23

Mass limit for a specific area in the hold

Area load known as intensity

Intensity = weight/surface area

Question 24

How to calculate surface area of an object in the hold?

Answer 24

L x W

Assume objects will always stands on the length and width side

Question 25

What is running load and how is it calculated

Answer 25

Running load is the mass of the object as it is moved along the hold. It is calculated from its longest side; Running load = Mass / longest length

Question 26

Equation to calculate moment?

Answer 26

Moment = mass x distance

Question 27

Define balance arm

Answer 27

Distance from datum to the centre of mass of an object

Question 28

How to find CG

Answer 28

CG= Total moments / Total mass

Question 29

What is MAC

Answer 29

Mean aerodynamic chord

Question 30

Define MAC

Answer 30

Is is the wing of an aircraft taken into a rectangular shape with similar lifting properties

Question 31

Why do we use MAC to find a % of CG

Answer 31

So we can quickly and easily find our Stab Trim and find out if the aircraft is within CG limits

Question 32

How to calculate CG position within MAC as a %

Answer 32

CG as a % of MAC = (CG arm x LEMAC) / Total MAC length x 100

Question 33

How to adjust CG position

Answer 33

Remove and move load

Question 34

Primary method for deciding how much and how far to move load?

Answer 34

m = d - - M. D Small m = mass you are moving Big M = total mass of plane Small d = Distance CG needs to be moved Big D = Distance a given mass has been moved

Question 35

Stresses experienced by an airframe

Answer 35

Tension, compression, shear, torsion

Question 36

If the total moments is less that the minimum moments allowed what needs to happen?

Answer 36

Forward load items must be reduced

Question 37

New Mass with old Cg methods to be used when

Answer 37

When adding or removing load

Question 38

What is meant by neutrally stable

Answer 38

When an aircrafts CG is toward to rear limit

Question 39

What whill an AFT CG do to static stability

Answer 39

Will decrease

Question 40

What is an index

Answer 40

The moment divided by a constant

Question 41

Mass for individual passengers may be determinded from a verbal statement by or on behalf of pax if?

Answer 41

Passenger seats available is less than 6