Perle.

This is coolbert:

HOW OFTEN HAS THIS BEEN AN ITEM FOR DISCUSSION? MATERIAL FOR A BLOG ENTRY?

SUBMARINES WHILE DOCKED, ANCHORED, IN PORT, NOT AT SEA, THE DANGER GREATER TO THE BOAT THEN WHEN SAILING AND SUBMERGED IT SEEMS!!

Once again with vigor so it seems!!

"French Nuclear Submarine Catches Fire in Mediterranean - Photo"

"PARIS (Sputnik) - A Rubis-class French nuclear submarine named Perle has caught fire while anchored on a naval base in the port-city of Toulon on the country's Mediterranean coast, the Maritime Prefecture of the Channel and the Mediterranean said on Friday, adding that the incident poses no threat of radioactive pollution."

No danger from radioactivity release so we are told. I hope so.

See previous blog entries with some additional embedded links as germane to the topic:

https://militaryanalysis.blogspot.com/2018/01/ins-arihant.html

https://militaryanalysis.blogspot.com/2017/11/orp-orzel.html

coolbert.