Vehicle Main Types
- Click the NEW button to create a new main type.
- Input the Name in the appropriate field.
- Enter the Shortcode in the appropriate field.
- Check the Active and/or Default checkboxes. The Default checkbox is optional.
- Click the SAVE button.

Dependent Prerequisites
Example:
Item | Description | Shortcode | Dependent Prerequisite |
| Main Type | Aircraft | AC | |
| Aircraft Category | Turbo Pop | TP | Main Type |
| Aircraft Type | British Aerospace Jetstream 32 | Main Type, Aircraft Category | |
| Aircraft Equipment | Standard J32 | J32 | Aircraft Type |
| Aircraft Configuration | Y19 | Y19 | Load Class |
| Aircraft Vehicle | F50-1 | F50-1 | Aircraft Type, Aircraft Configuration |
| Aircraft Registration | ABCDE | Owner (Company), Prefix, Aircraft Type, Aircraft Version |