General history of submarine warfare – https://youtu.be/lxV9fQO4O1U
Sources:
https://www.amazon.co.uk/Depth-Charge-Charges-Underwater-1914-1945/dp/1526796430/
https://www.cnrs-scrn.org/northern_mariner/vol03/tnm_3_1_45-58.pdf
https://maritime.org/doc/degreecharge9/index.php#pg19
http://www.dreadnoughtproject.org/tfs/index.php/Cruiser_Mine_(UK)
http://www.dreadnoughtproject.org/tfs/index.php/Type_D_Depth_Charge_(UK)
Naval History Books, use code “DRACH” for 25% off – https://www.usni.org/press/books?f%5B0%5Dsubject%3A1966
Naval photos and free channel posters – www.drachinifel.co.uk
Would you like to support the channel? – https://www.patreon.com/Drachinifel
Do you want to talk about ships? https://discord.gg/TYu88mt
'Legionnaire' by Scott Buckley – published under CC-BY 4.0. www.scottbuckley.com.au
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