There were many mentions of “hatches” made in the narrative. One “Port hatch” specifically. Nemo references multiple “hatches” on various occasions.
I placed a Forward Hatch just in front of the wheelhouse in lieu of a better location even though Verne made no mention of a ‘forward hatch’ specifically. Maybe that’s why Harper Goff put one there as well for the Disney film. I made this hatch as flat, inconspicuous and coincident with the deck plates as possible. I believe this particular hatch would have the release wheel somewhat recessed, again to help make it flush, not extended and interfere with any obstacles… such as a vessel being rammed.
I included the hatch to the dinghy compartment and, placed one in the dinghy itself, as Verne described; “double hatches” to enter the dinghy.
But, just including the forward hatch in front of the Wheelhouse didn’t resolve all the “hatches” references.
I placed Two Aft Hatches centered, in their own Aft Platform, well back of the Searchlight Cage and made extensive explanatory comments in the “Platforms” section.
For the Diving Chamber Exit Hatch I elected for one. This, although mention is made in Ch 24 of “double doors” exiting the chamber when they departed for the underwater funeral. I reviewed this possibility with great diligence, but decided to stay with the simpler method as did most other planners. A double door arrangement for that hatch would be cumbersome and impractical in the extreme. After all, this was an 1869 submarine, not the Grand Hotel du Palais Royal in Paris
I added a ladder fitted to the inside of the doorway, then added a handrail that fits through the portal and can be folded out of the way against the hull when closed.
Many of the other designers have the Diving hatch pivoting on its top hinges. This would allow no easy egress from the chamber to the sea floor, which may be many feet below the chamber floor or the hatch, and re-entering the boat might be problematic as well. Pivoting on its bottom hinges provides a ramp, or even possibly steps as in my case, for easily reaching the seabed and returning inside.
Although never addressed directly by Verne in the text, I think all these hatches can be easily justified.
In the narrative, the Armory was in the Diving Preparation Room with the diving suites. I took the liberty to relocate this to the Upper Deck for practical reasons. On the Upper Deck, the weapons needed for external attacks, such as the giant
squid, would be more readily handy. To descend all the way down to the Prep Room for the hatchets and/or harpoons when the need is on deck, would be impractical in the extreme. But there’s no reason some weapons couldn’t also be retained in the Diving Prep Room.
I originally had the Armory in the forward corridor just aft of the Wheelhouse and the Chart Room on the upper deck just aft of the Central Staircase. But I reverses these to make the charts more accessible to the Helmsman, Captain or other crew needing them near the Wheelhouse. This also placed the Armory nearer the wide opening at the Central Staircase and the Main Hatch, but could also quickly reach the two Aft Hatches if necessary. Again trying to stay with Verne’s practicality and Nemo’s simplicity.