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

Ch 2 - Aircraft Mass Definitions Flashcards

1
Q

BEM

A

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

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2
Q

The Variable Load

A

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
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3
Q

The Traffic Load

A

Compromises:

  • Passengers
  • Baggage
  • Cargo
  • Non-revenue load (load transported to support company)
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4
Q

Fuel

A

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

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5
Q

AUM

A

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
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6
Q

B,V,T,F

A

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

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7
Q

DOM

A

Dry Operating Mass

Compromises:

  • BEM
  • The Variable Load
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8
Q

Useful Load

A

Compromises:

  • The Traffic Load
  • Fuel
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9
Q

Operating Mass

A

Compromises:

  • BEM
  • The Variable Load
  • Fuel
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10
Q

ZFM

A

Zero Fuel Mass

Compromises:

  • BEM
  • The Variable Load
  • The Traffic Load
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11
Q

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

A

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

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12
Q

Fuel

A 
Taxi Fuel
\+
T/O Fuel - Trip Fuel = Landing Fuel
=
Block Fuel
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13
Q

T/O Fuel

A

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

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14
Q

Traffic Load

A

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

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15
Q

Zero Fuel Mass

A

= Traffic Load + Dry Operating Mass (DOM)

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16
Q

MSTOM/MTOM

A

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

Structural Limitation

17
Q

MLM

A

Maximum Landing Mass

Structural Limitation

18
Q

MZFM

A

Max. Zero Fuel Mass

Structural Limitation

19
Q

MSTM

A

Max. Structural Taxi Mass

Structural Limitation

20
Q

MRM

A

Maximum Ramp Mass

Structural Limitation

21
Q

PLTOM

A

Performance Limited Take off Mass

Performance imposed limit

  • Field Length
  • Climb Limit
  • ASDA (Aircraft Stopping Distance …..?)
  • Obstacle Limit
22
Q

PLLM

A

Performance Limited Landing Mass

23
Q

Regulated Mass

A

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

24
Q

RLM

A

Regulated Landing Mass

25
Q

RTOM

A

Regulated Take off Mass

Mass And Balance (12 decks)

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