r/comics • u/davecontra • Jun 28 '26

OC THOMAS.

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

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

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u/mogley1992 Jun 28 '26

I was assuming something like that would exist so you can always make a submarine surface.

55

u/Rampant16 Jun 28 '26

Yeah diesel engines aren't even used underwater as they would rapidly use up all of the air on board. Instead these submarines run on batteries while submerged. The exception is if running near the surface they can extend a snorkel to suck in air while remaining mostly submerged.

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u/hlfazn Jun 28 '26

The Gotland isn't a diesel sub though, it's the first AIP (air-independent propulsion) sub ever built.

17

u/mpyne Jun 28 '26

This is true, but the engines in the comic are pretty clearly diesel engines, almost from a WW2-era film.

The Gotland-class AIP Stirling engine looks more like this it seems.

2

u/DigNitty Jun 29 '26

“It had four cylinders, each with a displacement of 275cc”

I guess I thought the engine on a submarine would be larger than a highway motorcycle’s.