This is the best place to put the snorkel. It's not sticking out of the top of the turm that much and it's barely sticking out of the side of the bottom of the boat:
With it extended you can go to ~15m depth and run diesels (in calm water - small waves)
Where is the exhaust port on this sucker? I have to add smoke exhaust to it! Also have to add water splash from it cutting through the water.
Should I move it back (towards rear of the sub) more?