Ch 4 - Maximum Traffic And Fuel Load

Question 1

Useful Load

Answer 1

Also known as Disposable Load

Includes:

• Passengers (pax)
• Cargo
• Fuel

Useful load = difference between the DOM and ATOM

*Long flights which require large amounts of fuel can limit the mass of pax and cargo allowed on board

Question 2

Underload

Answer 2

The difference between the actual load and the allowed (maximum) traffic load

• Cannot exceed any performance or structural limitations

Allowed Traffic Load - Actual Traffic Load = Underload

Question 3

Determining the Maximum Traffic Load

Answer 3

Max Traffic Load = ATOM (allowed t/o mass) - DOM (dry operating mass)

Can be worked out using the 3 column model

• MZFM + T/O Fuel
• RTOM
• RLM + Trip Fuel

Question 4

Determining the Traffic Load in regard to Fuel

Answer 4

• Airlines usually carry the minimum amount of fuel required for sector
• Sometimes extra is carried for use on the next sector (save refuelling in destination for cost reasons)

Question 5

Carriage of Extra Fuel =

Answer 5

Tankering