2.1: Airspace introduction

Airspace at a glance:

The Sofia FIR (LBSR) ontains mostly class G (below FL90 outside CTR/TMAs) and class C (above FL90 outside TMAs). THere are 3 major airports, along with a number of other smaller fields:

ICAO Airport Name CTR TMA Elevation
LBSF Sofia Int’l Sofia Sofia 1742ft
LBWN Varna Int’l Varna Varna 230ft
LBBG Burgas Int’l Burgas Burgas 135ft
LBGO Gorna Gorna N/A 283ft
LBPD Plodiv Plodiv N/A 597ft