HUGE German Type XXI - Will it ever be done!?
Was the most innovative submarine design of WWII successful? The German Type XXI submarine
Type XXI - Guide 408
Massive RC German Type XXI Submarine Build Log #1
The U-boats That Time Forgot
Massive German Type XXI RC Submarine Build Blog #3
Hitler's Secret Submarine – The U-Boat XXI That Was 20 Years Ahead of Its Time
Massive German Type XXI RC Submarine Build Blog #4
Massive RC German Type XXI Submarine Build Blog #2
World of Warships PTS 0.10.7 Type XXI(21) U-Boat
Submarines Size Comparison
The Nazi Submarines That Could Cross the Globe Without Surfacing
Type XXI Elektroboot - The Electric U-Boat
German Type XXI U-Boat - search patrol
Modelling - 3D-print - Type XXI Submarine - "U 2540" - 1/72 - U-Boot Modell U2540
Uboat Type XXI U2524
Why Germany's Most Advanced U-Boat Was Sealed For 81 Years
Revell 1/144 U-Boat Type XXI with Interior added led lighting , figures and rails
German Submarine Type XXI U-2540 with interior
1:30 scale German Type XXI RC submarine - continued!
