good photos of surfacing submarine

[Kapitan]

Funnily enough the shots i have seen of the mike yes they have had welds like these.

[John Pancoast]

Originally Posted by Kapitan

Funnily enough the shots i have seen of the mike yes they have had welds like these.

Ah, ok, that answers that, thanks !

[lesrae]

Originally Posted by John Pancoast

Ah, ok, that answers that, thanks !

Bear in mind that this dodgy looking weld is on the fin, not the pressure hull so it's a free-flood area with no pressure on it, just mechanical forces caused by drag.

[Kapitan]

Yes its true about the flooding of the sail the only part left not flooded is the escape pod.

Also that album is very nice collection.

[John Pancoast]

Originally Posted by lesrae

Bear in mind that this dodgy looking weld is on the fin, not the pressure hull so it's a free-flood area with no pressure on it, just mechanical forces caused by drag.

True, but I assume the tower/control room hatch(es) are inside the same area, and if so, they'd be exposed (suddenly) to the full pressure of the depth the sub was at ?

I'm sure they're (hatches) built to take pressure, but again, just seems like a bass ackward way of doing things.

[lesrae]

Originally Posted by John Pancoast

True, but I assume the tower/control room hatch(es) are inside the same area, and if so, they'd be exposed (suddenly) to the full pressure of the depth the sub was at ?

I'm sure they're (hatches) built to take pressure, but again, just seems like a bass ackward way of doing things.

The hatch is inside there, but it wouldn't suddenly be exposed to any pressure; as the fin is free flooding it has the full sea pressure both inside and outside it's structure from the moment the boat dives - in the same way as the casing structure. They're there to protect periscopes, masts etc when they're extended and to smooth out the hull which is in reality covered in loads of pipes, hull glands, exhaust pipework etc.

I don't disagree that that weld looks awful, it looks to me like it could even be a gap that's filled with some type of epoxy and then painted, this would agree with Kapitan's explanation that the fin splits to release the escape pod - as could the conveniantly split handrail around the fin.

[John Pancoast]

Originally Posted by lesrae

The hatch is inside there, but it wouldn't suddenly be exposed to any pressure; as the fin is free flooding it has the full sea pressure both inside and outside it's structure from the moment the boat dives - in the same way as the casing structure. They're there to protect periscopes, masts etc when they're extended and to smooth out the hull which is in reality covered in loads of pipes, hull glands, exhaust pipework etc.

I don't disagree that that weld looks awful, it looks to me like it could even be a gap that's filled with some type of epoxy and then painted, this would agree with Kapitan's explanation that the fin splits to release the escape pod - as could the conveniantly split handrail around the fin.

Thanks for the info., sounds good.