Author Topic: Chris's Build of Battleship Ohio Engine  (Read 1623 times)

Offline tghs

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Re: Chris's Build of Battleship Ohio Engine
« Reply #30 on: August 05, 2022, 07:05:06 PM »
the foundry men in that time frame were masters of the art!! my normal searches found no photos of the engine,, west coast builds during this time seem to have less photos but one might try some sources local to San Francisco. The sectioned bed and crank most likely was done for installation reasons (reduced the size of holes in the decks above)  just to look at here's a photo of one the engines for the USS Cincinnati, circa 1894
what the @#&% over

Offline crueby

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Re: Chris's Build of Battleship Ohio Engine
« Reply #31 on: August 05, 2022, 08:05:28 PM »
the foundry men in that time frame were masters of the art!! my normal searches found no photos of the engine,, west coast builds during this time seem to have less photos but one might try some sources local to San Francisco. The sectioned bed and crank most likely was done for installation reasons (reduced the size of holes in the decks above)  just to look at here's a photo of one the engines for the USS Cincinnati, circa 1894
Nice shot!  Where did you find that picture? It shares some of the features of the Ohio engine, just a little smaller.

Offline tghs

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Re: Chris's Build of Battleship Ohio Engine
« Reply #32 on: August 05, 2022, 08:35:14 PM »
library of congress, but the search is kind of strange, if you try to search " USS Raleigh" you don't get much, if you search "cruiser Raleigh" much better results!!! some of the photos can be downloaded in tiff format, the enlargement resolution is great,,
what the @#&% over

Offline mklotz

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Re: Chris's Build of Battleship Ohio Engine
« Reply #33 on: August 05, 2022, 08:50:05 PM »
While trying to learn a bit more about the Ohio, I stumbled across this resource...

http://www.navsource.org/archives/01/12a.htm

which contains this fascinating, detailed description of the ship's layout...

http://navsource.org/archives/01/010/011060.jpg

Sadly, the engine is somewhat hidden, but still fun to explore.


A higher resolution view of the ship...

https://commons.wikimedia.org/wiki/File:Uss_ohio_bb-12.jpg

showing the later-installed "basket" masts and the array of side-mounted 6" guns.  It would appear that the notion of firing a broadside from a battleship was still in the Navy's mind.

More pictures of the ship here...

https://commons.wikimedia.org/wiki/Category:USS_Ohio_(BB-12)
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Offline steamer

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Re: Chris's Build of Battleship Ohio Engine
« Reply #34 on: August 06, 2022, 02:38:28 PM »
YUP    Marv beat me to it       Navsource is a great resource/


Dave
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Offline steamer

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Re: Chris's Build of Battleship Ohio Engine
« Reply #35 on: August 06, 2022, 02:42:16 PM »
While trying to learn a bit more about the Ohio, I stumbled across this resource...

http://www.navsource.org/archives/01/12a.htm

which contains this fascinating, detailed description of the ship's layout...

http://navsource.org/archives/01/010/011060.jpg

Sadly, the engine is somewhat hidden, but still fun to explore.


A higher resolution view of the ship...

https://commons.wikimedia.org/wiki/File:Uss_ohio_bb-12.jpg

showing the later-installed "basket" masts and the array of side-mounted 6" guns.  It would appear that the notion of firing a broadside from a battleship was still in the Navy's mind.

More pictures of the ship here...

https://commons.wikimedia.org/wiki/Category:USS_Ohio_(BB-12)

INTERESTING    Condensors were amidships between the engines!!!     Flies in the face of tradition.    This layout puts the engineers operation station outboard
"Mister M'Andrew, don't you think steam spoils romance at sea?"
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Offline crueby

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Re: Chris's Build of Battleship Ohio Engine
« Reply #36 on: August 06, 2022, 03:25:20 PM »
While trying to learn a bit more about the Ohio, I stumbled across this resource...

http://www.navsource.org/archives/01/12a.htm

which contains this fascinating, detailed description of the ship's layout...

http://navsource.org/archives/01/010/011060.jpg

Sadly, the engine is somewhat hidden, but still fun to explore.


A higher resolution view of the ship...

https://commons.wikimedia.org/wiki/File:Uss_ohio_bb-12.jpg

showing the later-installed "basket" masts and the array of side-mounted 6" guns.  It would appear that the notion of firing a broadside from a battleship was still in the Navy's mind.

More pictures of the ship here...

https://commons.wikimedia.org/wiki/Category:USS_Ohio_(BB-12)

INTERESTING    Condensors were amidships between the engines!!!     Flies in the face of tradition.    This layout puts the engineers operation station outboard
I don't think so - that cutaway view is not just a straight centerline view, the starboard engine, prop shaft, and prop are shown in full, projecting out towards the viewer, as are a number of other smaller parts along the keel and at the deck.
That is a great drawing though! Found it on the website there, was able to download a high res copy of the image.
« Last Edit: August 06, 2022, 03:29:05 PM by crueby »

Offline crueby

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Re: Chris's Build of Battleship Ohio Engine
« Reply #37 on: August 07, 2022, 09:58:31 PM »
One other note on that cutaway view - in the plans, it explicitely calls out which is the inboard and outboard sides of the engine, and the controls are all on the inboard side, all the pipes/condensers are on the outboard side. So, I'm pretty sure that the cutaway is showing the engine in front of the centerline of the cutaway view, and the controls are in the normal place down the center between the two engines. The artist who drew that view took a little license in order to show parts that would have been buried behind the engine in a strict cutaway view.

Offline crueby

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Re: Chris's Build of Battleship Ohio Engine
« Reply #38 on: August 07, 2022, 10:03:41 PM »
Okay, after spending most of the day out at the pond playing boats with the RC subs and having a great time with the rest of the gang, late this afternoon was spent on the computer finishing up the rest of the CAD work on the engine beds (this has been going on in the background all week). Got to a major milestone with the engine beds all modeled up. The one thing that may change is the angle of the support tubes along the front edge - the plans don't specify the angle, so I put them at the 30 degrees that they looked like. Once the frames and cylinders are in place much later on I can measure the actual angle to the holes in the cylinder blocks. These tubes have support rods angling up and across to the back of the cylinders to stiffen the whole assembly.

So, here is what its looking like now, with the bearing blocks and bearings all in place. There is a little more to do on the cylinder caps, to add the oiling and water jacket openings (they apparently had water cooling on the main crankshaft bearings). The plans are a little hard to decipher on the exact shape of the jackets internally, but at least I can get the openings.




Offline steamer

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Re: Chris's Build of Battleship Ohio Engine
« Reply #39 on: August 07, 2022, 10:32:16 PM »
that is gorgeous!  That was a ton of work in and of itself!!

Dave
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Damned ijjit!

Offline cnr6400

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Re: Chris's Build of Battleship Ohio Engine
« Reply #40 on: August 07, 2022, 11:23:55 PM »
 :ThumbsUp: :ThumbsUp: :ThumbsUp: :popcorn: :popcorn: :popcorn:

Offline Dave Otto

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Re: Chris's Build of Battleship Ohio Engine
« Reply #41 on: August 08, 2022, 12:47:55 AM »
Ditto what Dave said!
That looks real nice!

Dave

Offline crueby

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Re: Chris's Build of Battleship Ohio Engine
« Reply #42 on: August 08, 2022, 01:40:04 AM »
Thanks guys!  Makes me wonder how many people spent how long at drafting tables 120+ years ago to design this engine originally. And made it work.

Offline steam guy willy

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Re: Chris's Build of Battleship Ohio Engine
« Reply #43 on: August 08, 2022, 02:52:32 AM »
Hi also with our models we can use a 36" or 12" ruler to measure everything from one datum end !! or did they have 45' rulers in those days ??!! :ROFL:


Willy

Offline john mills

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Re: Chris's Build of Battleship Ohio Engine
« Reply #44 on: August 08, 2022, 02:53:10 AM »
looking good
i think of the pattern makers and foundry moulders making the mould to produce a good casting.
john