Load Factor Import/Export

Import and export load factors for passenger and cargo load calculations.

Staff
Last verified: January 28, 2026

The Load Factor importer and exporter let you bulk manage load factors. Load factors control how passenger and cargo loads are calculated for flights, using statistical distributions to create realistic variation.

Import Before Airports/Routes

Load Factors can be assigned to Airports and Routes. Create your Load Factors before importing Airports or Routes that reference them.

Accessing Import/Export

In Orwell, go to Data → Exports to download your load factors as CSV, or Data → Imports to upload changes.

Column Reference

Column

Required

Description

ID

For updates

vAMSYS record ID. Leave empty when creating. Include when updating or deleting.

Type

Yes

Load factor type: pax, pax-luggage, cargo, or cargo-volume

Name

Yes

Display name. Must be unique per type within your airline.

Min %

Yes

Minimum load percentage (0-100). Must be less than Max.

Max %

Yes

Maximum load percentage (1-100). Must be greater than Min.

Average %

No

Target average percentage (1-100)

Bias

No

Distribution skew factor (0.0-1.0)

Deviation (SD)

Yes

Standard deviation for load variation (0-100)

Is Default

No

TRUE to use as default for this type. Only one default per type.

_delete

Yes

Set to TRUE to delete, FALSE otherwise

Load Factor Types

Type

Description

pax

Passenger count calculation

pax-luggage

Passenger luggage weight calculation

cargo

Cargo weight calculation

cargo-volume

Cargo volume calculation

Default Handling

When you set a load factor as default, all other load factors of the same type are automatically set to non-default. Only one load factor per type can be the default.

Creating Load Factors

  1. Leave the ID column empty

  2. Fill in required columns: Type, Name, Min %, Max %, Deviation (SD)

  3. Set _delete to FALSE

Updating Load Factors

  1. Export existing load factors

  2. Modify the columns you need to change

  3. Keep the ID column intact

  4. Ensure _delete is FALSE

Deleting Load Factors

  1. Export the load factors you want to delete

  2. Set _delete to TRUE for those rows

  3. Import the file

Check References First

Before deleting a load factor, ensure no airports or routes are using it. Reassign them to a different load factor first.

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