Central-city OSM extracts added 2026-10-10: Helsinki, St Petersburg, Moscow.
Source: OpenStreetMap contributors, ODbL. Queries saved alongside local raw responses.
Helsinki: 60.135,24.87 to 60.215,25.04
St Petersburg: 59.895,30.23 to 59.985,30.40
Moscow: 55.705,37.53 to 55.805,37.71
Only central districts are included, not entire metropolitan areas.
Building footprints and tagged heights come from OSM. Missing heights, roof forms,
facades and colours are illustrative. Terrain outside Bravalla is simplified/flat.
Eastern road extracts include motorway, trunk, primary, secondary and tertiary roads.
The downloadable city source archive contains derived GeoJSON, compact scene data,
conversion scripts and original Overpass queries; raw responses remain locally.
Airshows are fictional free simulator displays, independent from factual missions.
