Search found 21 matches

by pasoleati
Thu Aug 08, 2019 4:25 am
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

Re: 3-shaft propulsion

As an alternative, perhaps a document was purchased from a private collection. Does that then obligate the purchaser to thereafter provide free copies to everyone who might want one? Bill Jurens How did the assumed private collector acquire the document? Again, as far as I know, any 3rd Reich offic...
by pasoleati
Thu Aug 08, 2019 4:18 am
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

Re: 3-shaft propulsion

Dear pasoleati, Wow ..... a great deal of fire and passion on your part. I'm just wondering why you are directing such ire toward Bill Jurens. Bill did not write the rules of the academic research game; all he has done is describe how they currently work. Without academic credentials connecting you...
by pasoleati
Wed Aug 07, 2019 7:20 pm
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

Re: 3-shaft propulsion

Mr. Jurens's response flies against everything that solod historiography is. For example, the very basic foundation of the reference noting system in serious academic works is that every source must be open to checking by anyone so willing. I don't think any doctoral thesis could pass the bar if the...
by pasoleati
Wed Aug 07, 2019 1:39 pm
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

Re: 3-shaft propulsion

No need to compute Bismarck hull resistance from scratch. The towing tank test results have survived. I'm not at liberty to post them, though, and I'm not entirely sure it would be productive to do so. Bill Jurens A bit strange statement for how could someone have any legal reason to prevent anyone...
by pasoleati
Fri Aug 02, 2019 6:14 am
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

Re: Battleship Bismarck: A Design and Operational History

Aa far as I know, the USN was the only one to adopt double-reduction gearing in their steam plants in large scale by WW2.
by pasoleati
Thu Aug 01, 2019 10:10 pm
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

Re: Battleship Bismarck: A Design and Operational History

Folks, the Richelieu's machinery gave 155,000 shp on 4 shafts and the machinery weighed 2875 tons (=53 shp/ton). Steam conditions were 27 kg/cm2 and 350 deg C.
by pasoleati
Wed Jul 31, 2019 3:39 pm
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

Re: Battleship Bismarck: A Design and Operational History

As far as I remember what Whitley says, even Scharnhorst and Gneisenau had slight differences in their machinery.
by pasoleati
Mon Jul 29, 2019 9:13 pm
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

3-shaft propulsion 2

No, as I don't have the books with me now. I do recall it being mentioned at least in Whitley that German marine steam plants were relatively inefficient.
by pasoleati
Mon Jul 29, 2019 8:43 pm
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

Re: Battleship Bismarck: A Design and Operational History

And despite high pressures and temperatures, German powerplants weren't particularly fuel-efficient. Question is why not.
by pasoleati
Mon Jul 29, 2019 7:46 pm
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 3906

Re: Battleship Bismarck: A Design and Operational History

Does Herr Nilsson have primary sources to support his theory? After all, to be logical, Germans should have been world leaders in large warship propulsion engineering which I doubt as e.g. Whitley's books mention plenty of inefficiencies and serious reliability issues with German powerplants.
by pasoleati
Sat Jul 27, 2019 8:03 pm
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 9689

Re: Battleship Bismarck: A Design and Operational History

Does the book discuss why Germans adopted 3-shaft propulsion? In detail discussing prod and cons. I think the way to accommodate everyone's wishes would have been a two-volume set. One volume concentrating on the design and engineering while the other on operations. Those not interested in machinery...
by pasoleati
Sat Jul 27, 2019 5:01 pm
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 9689

Re: Battleship Bismarck: A Design and Operational History

Marcel, also Agassiz, Bartolomeo Colleoni, Intrepid, Alliance and Fairmile D have good machinery coverage.
by pasoleati
Sat Jul 27, 2019 2:49 pm
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 9689

Re: Battleship Bismarck: A Design and Operational History

But isn't 3rd Reich era official state materials public domain ever since the end of the war?

I my opinion, for 3 authors with decades worth of not-minimum-wages job 750 euros is peanuts. I have spent over 10,000 € on my book and comics collection.
by pasoleati
Sat Jul 27, 2019 11:40 am
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 9689

Re: Battleship Bismarck: A Design and Operational History

Mr. Jurens, why would delving into primary sources be prohibitely expensive? Are the archives possessing the blueprints some sort of robber barons or extortionists?
by pasoleati
Fri Jul 26, 2019 4:49 am
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 9689

Re: Battleship Bismarck: A Design and Operational History

Thank you Bill Jurens for the interjection. A couple of points are still due. For example, Jurens mentions "Anatomy of the Ship" -type texts in existence. May I ask which texts he refers to? As far as I know, the AotS-series has/has had two Bismarck titles so far published by the different authors (...