Clue | Source | Date |
---|---|---|
Warning during the Blitz | Thomas Joseph | 09 Jul 2025 |
Sortie signal | Premier Sunday | 16 Jun 2024 |
Noise heard during the London Blitz | New York Times | 07 Feb 2021 |
Warning during the Battle of Britain | New York Times | 05 Jun 2020 |
Signal to pilots | Premier Sunday | 22 May 2016 |
Wartime signal | ||
Signal that starts a scramble | ||
Pre-sortie signal | ||
Fighter squadron's signal | ||
Wartime warning | ||
Pre-sortie signal | ||
Sortie signal | ||
Signal to combat pilots | ||
Environmental warning | ||
Warning during wartime |