Germany's Super Sub, the Type XXI U-Boat | Sails and Salvos
German WWII Type XXI Submarine Walkthrough & Tour - The Wilhelm Bauer/U2540
Was the most innovative submarine design of WWII successful? The German Type XXI submarine
British Scientists Examined Type XXI Silent-Running Motors — and Realized Why They Were Untouchable
Walter and Electro-Boots - U-Boats of the Future, Today(ish)
German WWII Submarine Type XXI (Elektroboot) - Design, construction & assembly
The U-Boat That Could Stay Underwater for Weeks
The Nazi Submarines That Could Cross the Globe Without Surfacing
What Was The Type XXI German U-boat? - Germany Made Simple
Every Submarine Used in WWII
Type XXI: The WW2 U-Boat That Shaped Modern Submarines
German Type XXI Submarine Tested by British Engineers | Fatal Flaws Revealed
Hitler's Secret Submarine – The U-Boat XXI That Was 20 Years Ahead of Its Time
The U-boats That Time Forgot
Legendary Salvage & Restoration — Type XXI, the German U-Boat Lost in a Norwegian Fjord for 80 Years
Military Loadout Archive and WW2 Tales
Hitler’s WWII Super Submarine — The U-Boat That Could Cross The World Without Surfacing
German U-Boat Ace Tests Type XXI for 8 Hours — Then Understands Why Allied Air Power Ruled Atlantic
German U‑Boat Ace Tests Type XXI for 8 Hours - Then Realizes Why America Had Already Won
Type XXI submarines - Wonder U-boat of German Navy (1943-1945)
