I’ve never seen this addressed. Are they o rings? How do they keep water from coming into the sub via the prop shaft and rudder/dive plane couplings?
How Do Real Subs Keep Out Water?
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ĺThe stern gland assembly consists of a gunmetal bulkhead casting to which is secured a gland stuffing box containing seven turns bf Sterntite square section packing. A gunmetal lantern ring is inserted between the third and fourth turns of gland packing.
The glands are lubricated with grease supplied from Tecalemit spring feed reservoir lubricators one mounted as near as possible to each stern gland. The lantern ring is located by a locking plug, the bottom half of the ring being drilled to register with a test plug screwed into the bottom of the stuffing box.
The gland packing is compressed by a flanged gland ring tightened by four hexagon headed pinion nuts screwed
2 PhotosMake it simple, make strong, make it work!Comment
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Drwaing of a Type XXIII stuffing box
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