Gone for diving
Contributor
From what I can tell by picturesSo, basically the hatch is the viewport at the horizontal position of the submersible?
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The hinge is yellow,
And the whole dome swings open, red
I don't think the veiw dome is removed it swings with the door.
I saw pictures of a ring being glued on. Then the dome mounts on the ring, with the hinge and the bolts everyone complains about.
If you have ever read the story about Pisces lll where before they lifted them off the sea bed. They were instructed to release the inside hatch lock mechanism. So if they where unconscious or dead they could open it up from the outside....
That fact that someone has to open it from the outside is just part the physics, and probably the best.
I'll take bolts over a latch that penetrates the hull.
Besides
Water pressure is doing a pretty good job of it. Once underwater you don't need bolts,
(if it floods you don't care. The bolts only will keep the door closed when it equalize, and bodies inside.)