688 SSN Sub Brief
51:17
Alfa SSN
34:59
USS Scorpion SUBLOSS SUBSUNK
38:34
The Incredible Engineering of the Battleship Yamato
2:51:57
Forgotten Prototypes: 1950s Experimental Planes | Full Documentary
2:23:27
Dornier Do X | The History Of The Giant 12-Engine Flying Ship
28:21
The History and Development of the 5"/38 - Turns out you can take the sky from someone
1:09:18
Charlie SSGN Sub Brief
1:08:50