Introduction

This document describes the FIR Definition structure and file formats implemented in IVAC v2.xx and can be used for the development of new FIR Definitions.

Similar to the MTL (Multiplayer Traffic Library), the FIR Definitions are maintained on a central IVAO server(s). On startup IVAC will query the central repository for new or updates to FIR Definitions and other data files used in IVAC.

There are a lot of advantages:

• Unordered List Itemcentral management of IVAC data (single source)
• users will always have the latest version available
• local divisions are able to provide the latest and correct information
• ability to provide very detailed information to users
• global navigation data is provided by Logistics Dept.
• navigational data is separated from visual data
• no endless searches for an often outdated or incorrect sectorfile

The user will be able to select a FIR and ATC position to use from the FIR definition.