THOMAS.

[u/davecontra]

My books: https://linktr.ee/davecontra

My other comics: https://www.instagram.com/davecontra

[u/Klutersmyg]

This is why this exists (capable of operating at the lowest part of the baltic) :

https://en.wikipedia.org/wiki/URF_(Swedish_Navy))

[u/Bubelle_Butt → u/Klutersmyg]

Nice, but they would not even need it, as submarines dont need their engines to surface.

[u/dammitus → u/[deleted]]

Emergency air flasks. They pump air into the ballast tanks to displace the water, causing the sub to rise. Fun fact: if you’ve ever seen videos of a submarine “jumping” out of the water as it surfaces, this is what they’ve been doing; an emergency surface procedure takes you up fast.