В.1.> Кого спускают на воду? Вроде как 1915 г.
Кроме того, что это "немец" спущенный на воду в 1915 г., ничего не нашёл.
С того ресурса:
The Russian Hotel-class nuclear submarine K-19 was crippled by a fire 800 miles off Newfoundland and had to be towed home in 1972.
An underwater photograph shows a portion of the nuclear-powered submarine USS Thresher, which sank off the coast of Cape Cod, Mass., with no survivors, in 1963.
The USS Nautilus, the world's first nuclear-powered submarine, enters New York Harbor during routine training operations in May 1956.