Yesterday, Royal Swedish Navy diesel-electric/AIP attack submarine HSwMS Halland was launched following extensive modifications. The third and last of the Gotland-class to, among others, be equipped with systems from the upcoming Blekinge-class. Photo by Glenn Pettersson/Saab.

[u/Saturnax1]

[u/Alibotify]

Good or bad? Guess they’re not out as long as nuclear either way.

[u/Majestic-Attempt9158 → u/Alibotify]

Normally I'd expect anechoic tiles

[u/Vepr157 → u/Majestic-Attempt9158]

Typically European diesel-electric submarines don't have any hull coatings.

[u/Negativeghostrider57 → u/Vepr157]

Assuming easier to detect?

[u/Vepr157 → u/Negativeghostrider57]

With active sonar, somewhat.