Surveillance and Air Traffic Management Systems | BULATSA

Surveillance and Air Traffic Management Systems

To perform its activities for provision of air traffic services (ATS), BULATSA has 5 radar complexes and 1 secondary en-route radar, allowing to achieve a developed radar network and obtain a reliable picture of the serviced by the Republic of Bulgaria airspace. Along the country are stationed:

  • 3 Terminal Approach Radars (TARs) at Sofia, Varna and Burgas. They consist of a primary ATCR 33MI type radar and a secondary SIR-M radar, manufactured by the Italian company Leonardo (at that time - SELEX ES). Through them, full surveillance of the respective airports’ area of responsibility is assured. They are also used in the creation of the multiradar picture of the whole air space.
  • 2 En-Route Radar Complexes, located near the peak Cherni Vrah and in the Varbitsa Pass. They consist of a primary TRAC2000N type radar and a monopulse secondary surveillance Mode S RSM970S radar, manufactured by THALES Air Systems SAS. These radar complexes cover the territory of the Republic of Bulgaria to a sufficient extent and play a significant role in the air traffic management.
  • At Plovdiv airport is situated a monopulse secondary surveillance radar CMSSR-401 of the company THALES (CARDION). It supplements the whole radar picture.

Within the initiative for modernization of BULATSA radar complexes, an entirely new radar complex was implemented at Sofia airport, including the delivery of a primary surveillance radar STAR2000P and a secondary surveillance Mode S RSM970S radar of the company THALES Air Systems SAS.

Two Meteor 306AC meteorological radars provided by the company Leonardo (at that time - GEMATRONIK) are deployed in Sofia Air Traffic Control (ATC) Centre and Varna ATC Centre. They provide current meteorological information for air traffic management purposes and were modernized in 2010.

At Sofia Airport, a new Advanced Surface Movement Guidance and Control System (A-SMGCS) has been installed and put into operation with the functions of surveillance and control of aircraft and other ground vehicles on the maneuvering area of the airport.

The air traffic management over the territory of the country is provided by utilizing modern systems for processing and displaying surveillance and flight information. In operational use at Sofia, Varna and Burgas ATC Centres is the air traffic management system SATCAS, provided by the company Leonardo (SELEX ES). Following the requirements of the National Programme for Implementation of the Single European Sky and the EU regulations on the tools and systems for provisioning of air traffic management services, BULATSA performed a modernization of its air traffic management system - SATCAS, which enabled the implementation of new functionalities, improvement of the system performance and increase of the level of safety in ATS.