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US cruiser submarines
http://67.205.157.234/forums/viewtopic.php?f=17&t=5292		 Page 2 of 3
Author:  acelanceloet [ May 21st, 2014, 3:49 pm ]
Post subject:  Re: US cruiser submarines
how did you size it miho? from the drawing or?
Author:  erik_t [ May 21st, 2014, 5:40 pm ]
Post subject:  Re: US cruiser submarines
Eight inch guns is a bit of an odd one to me. I can sort of kind of see the idea of a sizable 6" battery for something like a commerce raider, but if you've got no armor at all, you don't really want to be mixing it up with an opponent that requires an 8" battery.

Everybody had cruiser-sub ideas, though, so there must have been some merit to the concept.
Author:  Thiel [ May 21st, 2014, 9:36 pm ]
Post subject:  Re: US cruiser submarines
Some further info on the Tauhschiffe
http://dreadnoughtproject.org/plans/SM_Projekt_50_1918/
Apparently they actually ordered one.
Author:  heuhen [ May 21st, 2014, 9:53 pm ]
Post subject:  Re: US cruiser submarines
acelanceloet wrote:
how did you size it miho? from the drawing or?
under the keel. it stands 212. if it's in feet or meters is difficult to say.
Author:  Thiel [ May 21st, 2014, 9:58 pm ]
Post subject:  Re: US cruiser submarines
heuhen wrote:
acelanceloet wrote:
how did you size it miho? from the drawing or?
under the keel. it stands 212. if it's in feet or meters is difficult to say.
Those are frame numbers, not length.
Author:  MihoshiK [ May 21st, 2014, 10:12 pm ]
Post subject:  Re: US cruiser submarines
acelanceloet wrote:
how did you size it miho? from the drawing or?
EDIT: Oops, I might be wrong. Those are not meter measurements. She's closer to just over 100 meters.
Author:  erik_t [ May 21st, 2014, 10:53 pm ]
Post subject:  Re: US cruiser submarines
MihoshiK wrote:
acelanceloet wrote:
how did you size it miho? from the drawing or?
EDIT: Oops, I might be wrong. Those are not meter measurements. She's closer to just over 100 meters.
We might size based on the torpedoes shown aboard. If we presume them to be the 50cm G7, a popular WW1 unit of 7m overall length, we arrive at about 0.6m per frame. This would suggest a length of about 130m.
Author:  TimothyC [ May 22nd, 2014, 12:22 am ]
Post subject:  Re: US cruiser submarines
erik_t wrote:
Everybody had cruiser-sub ideas, though, so there must have been some merit to the concept.
Well, If everyone is running the subs under old cruiser rules for shipping interdiction then having surface guns makes sense - a shell is a lot less expensive than a gun, and if you have to surface to check the ship for war material anyway, then it makes sense to have the guns.
Author:  meyer [ May 22nd, 2014, 9:04 am ]
Post subject:  Re: US cruiser submarines
The exact length of UD 1 aka Projekt 50 was 125.80 meters.
Author:  bsmart [ May 22nd, 2014, 2:35 pm ]
Post subject:  Re: US cruiser submarines
TimothyC wrote:
Well, If everyone is running the subs under old cruiser rules for shipping interdiction then having surface guns makes sense - a shell is a lot less expensive than a gun, and if you have to surface to check the ship for war material anyway, then it makes sense to have the guns.
Except that you don't need nine 8" guns to go commerce raiding. A pair of 5" guns would be more than enough to sink an unarmored, unarmed merchant ship. Once you factor in the cost of designing a submarine to mount some of these guns and their turrets I doubt you'd ever save any money over just torpedoing everything. Never mind the engineering challenges of trying to make something like that submersible.

There's a reason cruiser submarines fell out of favor so quickly; everyone realized they were a really, really stupid idea.
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