Related time notes
- WWII Submarines that served the Polish, Greek, Dutch & Norwegian Navys1:00:18Advanced O 21 boats and Dutch experiments with Allied typesChapter
- 'S' Class Submarines: The Royal Navy's All Rounders for WWII - Key Ship Series 7 Ship 749:09Sturgeon's friendly-fire scare exposes signal confusionChapter
- 'S' Class Submarines: The Royal Navy's All Rounders for WWII - Key Ship Series 7 Ship 758:22Sturgeon's patrol tempo and transfer to the Dutch NavyChapter
- 'S' Class Submarines: The Royal Navy's All Rounders for WWII - Key Ship Series 7 Ship 759:22Why submarine commanders varied torpedo salvo sizeNotable Point