Today we take a look at the first inter-war 'cruiser' submarine and its capabilities.
Sources:
"X1-Cruiser Submarine" - Warship. Vol. VI
https://www.amazon.co.uk/X-1-Royal-Navys-Mystery-Submarine/dp/1848321619
https://www.amazon.co.uk/Encyclopedia-British-Submarines-1901-1955-Akermann/dp/1904381057
Naval History books, use code 'DRACH' for 25% off - https://www.usni.org/press/books?f%5B0%5D=subject%3A1966
Free naval photos and channel posters - www.drachinifel.co.uk
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'Legionnaire' by Scott Buckley - released under CC-BY 4.0. www.scottbuckley.com.au
