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Seydlitz Magazine Flood -- effect on speed?

 
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jwduquette1



Joined: 20 Dec 2005
Posts: 90

PostPosted: Mon Mar 05, 2007 10:02 pm    Post subject: Seydlitz Magazine Flood -- effect on speed? Reply with quote

Rereading "Castles of Steel" -- I can't help myself as I really enjoy this book.

Apparently the magazines of Seydlitz were flooded with some 600-tons of sea water during Dogger Bank. What sort of effect might this have on the speed of the ship? 600-tons seems like a lot of additional weight. But is it -- I mean relative to the inherent weight of the ship and such? I presume the ship would be slightly lower in the water and the sectional area presented would be greater. So more drag. But is it a lot or a little?
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Jefgte



Joined: 27 Feb 2007
Posts: 65
Location: France

PostPosted: Tue Mar 06, 2007 6:37 pm    Post subject: Reply with quote

I made a SpringSharp Test on a personnal 24000T German BC - 1910,
(I have not the Seydlitz)


The seaboat quality decrease from 1.11 to 1.09.

Original speed was 26.5kts - Composite Strenght 1.0
with 600T overload, the speed is reduce to 25.4kts to have Composite Strenght 1.0, without reduction: 0.94



Just to see

Jef
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Current 1/700 WL Scratchbuilt:
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Last edited by Jefgte on Wed Mar 07, 2007 12:01 pm; edited 1 time in total
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jwduquette1



Joined: 20 Dec 2005
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PostPosted: Wed Mar 07, 2007 8:51 am    Post subject: Reply with quote

Interesting. Thanks for your reply.

Is this a model test you are describing?
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Jefgte



Joined: 27 Feb 2007
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PostPosted: Wed Mar 07, 2007 12:04 pm    Post subject: Reply with quote

On my SpringSharp BC, I just increase the "Miscellaneous Weight" from 50 to 650T.



Jef
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Current 1/700 WL Scratchbuilt:
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jwduquette1



Joined: 20 Dec 2005
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PostPosted: Wed Mar 07, 2007 2:50 pm    Post subject: Reply with quote

Interesting. Thanks again. I had never heard of this program before this moment. I have not downloaded it yet -- can the effects of list on speed be modeled?
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Jefgte



Joined: 27 Feb 2007
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Location: France

PostPosted: Wed Mar 07, 2007 5:32 pm    Post subject: Reply with quote

The effect of the list is not use in the model.

When the ship is correct , Spring Sharp made this final comment

"Ship has slow, easy roll, a good, steady gun platform"
" Good seaboat, rides out heavy weather easily".


Jef
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Current 1/700 WL Scratchbuilt:
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- HMS Lion
- SMS Friedrich dre Grosse
- USS Arkansas
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jwduquette1



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PostPosted: Fri Mar 09, 2007 10:23 am    Post subject: Reply with quote

Ok -- I see that now. I started playing about with the program last night.
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