Ch 2 - Aircraft Mass Definitions Flashcards Preview

Mass And Balance > Ch 2 - Aircraft Mass Definitions > Flashcards

Flashcards in Ch 2 - Aircraft Mass Definitions Deck (25):
1

BEM

Basic Empty Mass

Compromises:
- Empty clean aircraft
- Any unusable fuel/ liquids (lubrication and hydraulic fluids)
- Safety equipment
- Supplementary electronic equipment

Should remain constant between weighing unless modified or changed

2

The Variable Load

Compromises:
- Crew and their baggage
- Catering and other removable passenger service equipment
- Food and beverages
- Potable (drinking) water
- Lavatory chemicals
- Any other special operational equipment

3

The Traffic Load

Compromises:
- Passengers
- Baggage
- Cargo
- Non-revenue load (load transported to support company)

4

Fuel

Ramp Fuel (block fuel)- Usable fuel includes taxi fuel

T/O Fuel - End of the runway, start of take off (ramp fuel - taxi fuel)

Landing Fuel (T/O fuel - Landing Fuel = Trip Fuel) - can limit T/O mass

5

AUM

All Up Mass (Gross/Total mass)

- Total mass of the aircraft and decreases during flight (fuel burn)

Compromises:
- BEM
- The Variable Load
- The Traffic Load
- The Fuel

6

B,V,T,F

Big - BEM
Vans - The Variable Load
Travel - The Traffic Load
Fast - The Fuel

7

DOM

Dry Operating Mass

Compromises:
- BEM
- The Variable Load

8

Useful Load

Compromises:
- The Traffic Load
- Fuel

9

Operating Mass

Compromises:
- BEM
- The Variable Load
- Fuel

10

ZFM

Zero Fuel Mass

Compromises:
- BEM
- The Variable Load
- The Traffic Load

11

B,V,T,F,D,U in OZ

Big Vans Travel Fast Down Under in OZ

BEM
The Variable Load
The Traffic Load
Fuel

Dry Operating Mass
Useful Load

Operating Mass
Zero Fuel Mass

12

Fuel

Taxi Fuel
+
T/O Fuel - Trip Fuel = Landing Fuel
=
Block Fuel

13

T/O Fuel

= Block Fuel - Taxi Fuel (which is usually a given amount)

14

Traffic Load

= All Up Mass (AUM) - Operating Mass (OM)

15

Zero Fuel Mass

= Traffic Load + Dry Operating Mass (DOM)

16

MSTOM/MTOM

Maximum Structural Take-Off Mass / Maximum Take-Off Mass

Structural Limitation

17

MLM

Maximum Landing Mass

Structural Limitation

18

MZFM

Max. Zero Fuel Mass

Structural Limitation

19

MSTM

Max. Structural Taxi Mass

Structural Limitation

20

MRM

Maximum Ramp Mass

Structural Limitation

21

PLTOM

Performance Limited Take off Mass

Performance imposed limit


- Field Length
- Climb Limit
- ASDA (Aircraft Stopping Distance .....?)
- Obstacle Limit

22

PLLM

Performance Limited Landing Mass

23

Regulated Mass

Must employ the most limiting of either the performance or structural limitations.

24

RLM

Regulated Landing Mass

25

RTOM

Regulated Take off Mass