Ultra

Related time notes

1. Western Approaches Tactical Unit(WATU)22 Jun 2023
   0:17WATU within the anti-submarine systemChapter
2. Western Approaches Tactical Unit(WATU)22 Jun 2023
   2:59Why staff work disappears from the story of warNotable Point
3. Western Approaches Tactical Unit(WATU)22 Jun 2023
   9:41The Submarine Tracking Room turns reports into decisionsChapter
4. County Class P4: The Norfolk class… and why they stopped - extended (Long Patrol)2 Mar 2022
   17:20Dorsetshire's anti-raider work from Graf Spee to PythonChapter
5. PQ17: An Introduction to the Convoy war & the Perfect Storm of PQ17… P3/327 Aug 2020
   20:56Ultra, high command, and the pressure on PoundChapter