Free air traffic control simulator for Windows. Work Frankfurt on real German airspace, speak real ICAO phraseology, and the pilots read back.https://echodelta.app/https://echodelta.app/changelog/2026-09-15-v0-1-0/https://echodelta.app/changelog/2026-09-15-v0-1-0/The first playable build. Work Delivery, Ground and Tower at Frankfurt, by voice.Tue, 15 Sep 2026 00:00:00 GMTDeliveryGroundTowerVoiceFree Play