The aircraft structure is designed to withstand certain bending moments and vibrations. To prevent excessive forces exerted on a structure, manufacturers regulate the weight of the load that is allowed in a given section of a fuselage. The limitation can apply to the whole hold space or only some designated part of it.

24.01.2023


In the Evionica’s Weight and Balance solution, the fuselage section can be arbitrarily defined together with a weight limitation that should be validated.

1. Hold Capacity check

Validates the maximum capacity of a given hold space, for example, the Main Deck Cabin of A321 P2F can accommodate a maximum of 59 525 lb of payload.

The capacity of the Main Deck is exceeded
The capacity of the Main Deck is exceeded

2. Shell Zone limit

Within a given hold there can be a separate zone defined (aka Shell Zone) having a certain capacity. For A321 PCF the forward section of the Main Deck can only accommodate 7000 kg.

Shell Zone limit defined in a forward part of the Main Deck
Shell Zone limit defined in a forward part of the Main Deck

3. Combined Shell Zone Limit

Combined Shell Zone Limit affects both the upper and lower deck at the same time meaning that it sums up the whole cargo in a given area of the aircraft loaded in the main deck and lower deck and validates it against the maximum.

Cumulative Load Limits apply to both Upper Cabin and Lower Deck
Cumulative Load Limits apply to both Upper Cabin and Lower Deck

Additionally, all Shell Zone Limits can depend on different load states:

1.The maximum capacity of a given area can be changed depending on Actual Zero Fuel Weight (AZFW)

For B747-400F owned by WGA the FWD section ( between stations 228in AND 525in) can accommodate:

  • 13675 kg if the AZFW <= 276 691 kg
  • but this is reduced to 7856 kg for AZFW > 276 691 kg
The higher limit for low AZFW
The higher limit for low AZFW
The limit is reduced when AZFW is higher
The limit is reduced when AZFW is higher

2. Maximum load allowed for a section can depend on actual mass loaded in the different area For example in B747-400 BDSF the rear part of the fuselage (between 1480 in and 2365 in) can accommodate:

  • only 112 000 lb if the total weight loaded in the over-wing area is lower than 60 000 lb
  • but this can be increased to 125 100 lb provided that a minimum of 60 001 lb is loaded over-wing
Low limit when the over-wing area is empty
Low limit when the over-wing area is empty
Higher limitation when 66 000 lbs loaded over-wing

For more information about our Weight and Balance solution for Cargo Airline


If you would like to DEMO our Weight and Balance (Mass and Balance) solution and see how it works and will support your operations, feel free to book a meeting with our CONSULTANTS.


ABOUT EVIONICA

Evionica delivers intelligent solutions to improve the operations of companies in the aviation industry. It offers features the Weight & Balance software solution, as well as a range of Computer-Based Training (CBT) courses to enhance the pilot training process. Evionica provides its services on all continents for clients such as Wizz Air, Western Global Airlines, Global Crossing Airlines, SmartLynx, LOT Polish Airlines, Lufthansa Aviation Training and Gulf Aviation Academy, to name a few.

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