The Ship Model Forum

Pascal, convincing and beautiful indeed. My "interpretation" of the photo of the actual sub is this portion of the deck casing has no limber holes, but a gap between the sides and the rounded pressure hull? Difficult to tell in the photo but this was the usual setup on the fleet boats. But of course by the late 50's who knows!

Really love the weathering!

Best regards: Tom

Looks as if the limber holes and gap used along the top of the pressure hull changed and was of several configurations.

I included a photo of Bugara at launch (the only fleet boat on active duty I had any association) and one can see how a typical gap at the bottom of the casing looked. A photo later of Torsk has yet a different arrangement of the midships limber holes that she carried in some of your photos. I wonder what the reason for the "experimentation" was? The post war submarine modifications seemed to be a free for all!





Cheers: Tom

Thanks Tom,

On the museum version, the water drain holes are no longer visible, hidden by the hull plate which does not go down to the bilge, for hydrodynamic reasons?

I did not show it on my stand.

_________________
Pascal

•Battleship Bretagne 3D: https://vu.fr/FvCY
•SS Delphine 3D: https://vu.fr/NeuO
•SS Nomadic 3D: https://vu.fr/tAyL
•USS Nokomis 3D: https://vu.fr/kntC
•USS Pamanset 3D: https://vu.fr/jXGQ

The Museum version is of course the latest! The gap replaces the limber holes, not sure why the change, though perhaps a little less submerged drag. Part of a quick submergence is being able to flood rapidly, One wants the deck casing to expel any air quickly, which is the task of the spaced decking to allow air to escape and the gap or limber holes to allow water to rush in quickly. Interesting that Bugara at WWII launching had a similar setup to Torsk's final configuration. The other possible configuration changes may be related to resistance of the deck casing as a buffer to depth charging. Certainly by the 60's depth charges were mostly obsolete and torpedoes or projected weapons being the major issue. Though not used by US adversaries, the weapon Hedgehog had a contact fuze and a small shaped charge, and would be set off by casing contact rather than hull contact and possibly non fatal.

Cheers: Tom

It probably makes the submarine quieter underwater. Drag creates noise.

_________________
Pascal

•Battleship Bretagne 3D: https://vu.fr/FvCY
•SS Delphine 3D: https://vu.fr/NeuO
•SS Nomadic 3D: https://vu.fr/tAyL
•USS Nokomis 3D: https://vu.fr/kntC
•USS Pamanset 3D: https://vu.fr/jXGQ

With these post war conversions there are a lot of questions. I wonder what the story behind the manhole covers on the side of the hull are for, those could have been made lower drag. Your research has unearthed a lot of good information and also further questions.

Cheers: Tom

Pascal,

This is beautiful. I have enjoyed the posts. You have done an amazing job!!!!!!!

Thanks!

https://www.youtube.com/watch?v=S2_NFdy1EvU

_________________
Pascal

•Battleship Bretagne 3D: https://vu.fr/FvCY
•SS Delphine 3D: https://vu.fr/NeuO
•SS Nomadic 3D: https://vu.fr/tAyL
•USS Nokomis 3D: https://vu.fr/kntC
•USS Pamanset 3D: https://vu.fr/jXGQ

Fun and informative short video! Thanks!