Nuclear Submarine Evolution

I recently came across the following images showing the evolution of American and Russian (Soviet) nuclear submarines posted by Naval Graphics on Twitter.The last image is for Russian/Soviet diesel attack submarines.

The graphics miss some subs (for example, the American SSN image doesn't have USS Nautilus), but overall are pretty complete. 

It is interesting to see the changes for both the US and Russian/Soviet submarines and I hope you enjoy looking at the graphics as much as I did. Note, you can click on an image to view a larger version.

American Nuclear Powered Attack Submarine (SSN) Evolution

American Nuclear Powered Ballistic Missile Submarine (SSBN) Evolution

Russian/Soviet Nuclear Powered Attack Submarine (SSN) Evolution

Russian/Soviet Nuclear Powered Ballistic Missile Submarine (SSBN) Evolution

 Russian/Soviet Nuclear Powered Guided Missile Submarine (SSGN) Evolution

Russian/Soviet Diesel/Electric Attack Submarine (SS) Evolution