Talk:German battleship Tirpitz

K-21

On July 5th, 1942 the Russian submarine K-21 located the German escort of Operation Rösselsprung and claimed to have hit Tirpitz with two torpedoes. However, the ship's war logs report no such incident, and she reportedly wasn't damaged. One Russian theory dictates that the Tirpitz was indeed damaged, but was quietly brought in to berth and repaired to avoid the Führer's wrath. This seems somewhat far-fetched, however.—Preceding unsigned comment added by 206.213.157.4 (talk • contribs) 17:57, 29 March 2005 (UTC)

Western historians tryed to prove that K-21 missed. How they did it ? Look in the book of David Irving "The Destruction of Convoy PQ-17" http://www.fpp.co.uk/books/PQ17/2009edition.pdf at this map http://zhurnal.lib.ru/img/t/tonina_o_i/tirpitz-lunin-01shtml/002.jpg Mr.Irving so aspired to pull a CONDOM on an ELEFANT that HAS crossed out ALL GEOGRAPHICS! At this map the point 23°40′E is to the west from the point 23°10′E. That is mr.Irving, in struggle against Russians, has decided to change ALL GRID of GEOGRAPHICAL COORDINATES ON MOTHER EARTH!195.26.84.250 (talk) 20:52, 9 April 2011 (UTC)Arthur

There's simply no evidence that the torpedoes hit - the Germans would have recorded the maintenance done to repair the alleged damage, as they did in every other instance. I don't know what you're trying to prove with the link to Irving's book. Can you be more specific? Parsecboy (talk) 03:00, 10 April 2011 (UTC)

The Wikipedia http://en.wikipedia.org/wiki/Bismarck_class_battleship wrote the Tirpitz after the operation "Knight's Move" about : "a large caisson was built to allow the rudders to be replaced.[52] Naval historians William Garzke and Robert Dulin stated that "the repairs to this ship were one of the most difficult naval engineering feats of World War II." The replace of the rudders was finished in jan.1943. And at what here K-21? The rudders were cracked itself.:)

You may not be aware, but ships require periodic maintenance to keep them operational. As for the refit for Tirpitz, it happened in October, the K-21 attack occurred in June. How do you explain the 4 month gap? And do you mean to tell me the two alleged hits forced the replacement of the water tubes in the boilers as well? Parsecboy (talk) 03:00, 10 April 2011 (UTC)

General Characteristics

There seems to be some confusion over the units and notation. For example "Length: 253,6 m overall". Shouldn't this read "2,536 m" (two kilometers long) or should it read "253.6 m"? There are similar problems else where, for example speed is given as "30,8 knots" rather than "30.8". Curioulsy the crews complement is listed as "2.608,", in other words just over two and a half men! But others areas appear correct such as "3 three-blade propellers, 4.70 m ". This needs sortign out as the article looses credibility. --ManInStone 10:22, 16 May 2007 (UTC)

The continental system has now bene changed to the English notation. GraemeLeggett 11:38, 16 May 2007 (UTC)

FYI, German switches the . and the , like 203,8 (203.8) and 2.123.234 (2,123,234) Cyborg999 21:43, 21 May 2008 (UTC) —Preceding unsigned comment added by Cyborg999 (talk • contribs)

german navy flag

the picture needs to be decreased in size, it's quality is WAY to low for it to be displayed at that size.

British attempts to sink Tirpitz

I have added descriptions (some minor) of various attacks on the Tirpitz. It arguable that these should be described individually in separate articles. Could do this, but some are very minor and being together they show the progression and linkage between the attempts. Or should I expand the major ones into articles? Folks at 137 17:30, 28 October 2005 (UTC)

Dimensions?

Stated dimensions are: 251m x 36m x 8.7m

251m is length, 36m is probably height, and 8.7 - width?

Judgin by this picture, the width should be at least 4 times that.

http://www.maritimequest.com/warship_directory/germany/battleships/tirpitz/22_kaafjord_mar_1943.jpg

Please verify.

36 m is width, 8.7m is draft. But draft should be 10m or more, see Bismarch article for data. --Denniss 18:08, 27 March 2006 (UTC)

This site [1] has these dimensions:

Length (Total): 251,0 m

Length (Waterline):241,6 m

Beam: 36,0 m

Draft: 10,6 m

This site [2] gives 9.9m for "designed draft" and 10.61m as "maximum draft", and compares Bismarck & Tirpitz.

Hope this helps. Folks at 137 19:29, 27 March 2006 (UTC)

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Largest?

This:-
"She is also the biggest warship ever built in Europe"
Has been changed and reverted a couple of times; whats the thinking, here?
She was one of a pair, so there can't be much in it; and I thought the Hood and the Littorio's were about the same size, and that Vanguard was bigger (though that page says 48,000 tons, which seems too big). Any thoughts? Xyl 54 17:23, 3 December 2007 (UTC)

48,000 t is probably the full load displacement of Vanguard she is described as marginally heavier than Hood but Hood was longer. GraemeLeggett 20:58, 3 December 2007 (UTC)

I've checked Conway for this; unhelpfully, they don't give a standard displacement for Hood, but full load was 48,360t in 1940; Littorio was 40,724t standard, 45,236t full load. So they're a bit smaller. Vanguard was 44,500t standard, 51,429t full load; so, make of that what you will. A bit bigger when empty, a bit smaller when full. (Conway gives the same displacements as this page for Tirpitz). Xyl 54 (talk) 16:10, 6 December 2007 (UTC)

Rosselsprung

I've re-written this section;
This : “On 4 July 1942 Tirpitz and her escorts left port to sail to a new base.�? Is misleading;
And this : “but due to the efficiency of the U-boats and aircraft in dealing with the convoy the sortie was aborted�? is plain wrong.
So I’ve corrected it.
(There is a discussion here if anyone is interested).
Xyl 54 (talk) 13:39, 11 December 2007 (UTC)

CN tag.

I've removed the general CN tag. I don't think it applies as a whole to the article. I may add individual tags as are required. Protonk (talk) 05:55, 27 April 2008 (UTC)

WikiProject Military history/Assessment/Tag & Assess 2008

Article reassessed and graded as start class. Referencing and appropriate inline citation guidelines not met. With proper referencing and inline citations, this article would easily qualify as B class. --dashiellx (talk) 14:39, 6 May 2008 (UTC)

British English

Recent edits have imposed US spellings and terms on what is, primarily a British or European topic. I've added the "British English" banner to alert future editors and I'll revert the changes, keeping any substantive new info. No offence intended (note spelling!) Folks at 137 (talk) 08:50, 1 September 2008 (UTC)

Tirpitz as scrap - needs verification

I added "Verification needed" to two comments in this section. First, regarding the sentence, "However, a large portion of the bow remains where it sank in 1944." At least one photo exists that shows the tip of the bow being removed, and can be found (among other photos) at http://www.bismarck-class.dk/tirpitz/gallery/themes/gallthemetirscrapping.html. Also, regarding the comment, "the ship's electrical generators were used for a temporary power station", I question whether any of the ship's equipment would have been usable after the attack. I think these two sentences are rather important, and as such should be verified. —Preceding unsigned comment added by Elsquared (talk • contribs) 00:06, 4 January 2009 (UTC)

Fleet in being

While I realise that the fanbois need a way to justify this ship's career, I'd be interested to know how many additional RN units were deployed to the NE of the UK because of Tirpitz's existence. Somehow I suspect the answer is rather small. Any ideas for a reference? Greglocock (talk) 11:55, 2 June 2009 (UTC)

For example: Operation Tungsten. Your recent edits regarding removal of the fleet-in-being information (stated by numerous authors btw) is not supported, either in this article or in the Bismarck class article. Would you kindly restore the previous consensus view? Yours truely, a 'fanboi' (please refrain from incivility in the future). Kurfürst (talk) 20:35, 2 June 2009 (UTC)

Nope, that is a task force that was raised for a specific mission. A fleet in being succeeds if it locks up units on a continuous basis, otherwise it is merely an intermittent nuisance that you attempt to eliminate when you have spare capacity. So, I repeat, how any additional units were stationed off the NE of the UK specifically to suppress Tirpitz over the long term? A reference would be nice. Greglocock (talk) 23:14, 2 June 2009 (UTC)

I have to say what your (or my opinion) on the matter is rather irrevelant, as it would be OR, but you seem to wielding a hatchet against the so-called 'fanbois' rather than constructively editing. In any case, I have added the reference to Tirpitz role's as 'fleet-in-being', and hopefully, this is where it ends. Kurfürst (talk) 00:56, 3 June 2009 (UTC)

Dunlin and Garzke say nothing about "huge naval and air forces" so this source has been falsified. Dapi89 (talk) 03:46, 3 June 2009 (UTC)

Hmm, so the clue would be that anything that sounds like fanboi exaggeration (we actually have a different word) probably is. Well, K, you have two choices, if you wish to improve your rep then make sure the refs support the wording you use, or else leave me to clean up your mess. If the latter do not expect to enjoy the result.Greglocock (talk) 04:03, 3 June 2009 (UTC)

I have removed this as well. As can be seen from [google books Garzke and Dunlin don't say either. More falsifications! Dapi89 (talk) 12:07, 3 June 2009 (UTC)

It seems this is merely much hair being lost and some undue excitement shown over basically nothing, with the basic statement - Tirpitz's role as a 'fleet in being' - remaining essentially unchanged. Kurfürst (talk) 12:13, 3 June 2009 (UTC)

You're not kidding anybody Kurfurst. We know what you're about. Dapi89 (talk) 13:16, 3 June 2009 (UTC)

correction re: coordinates of wreck

I'm going to change the sentence, "The main part of the hull (less the decking) is clearly visible". First, I just looked on Google Earth and a ship's hull is not visible anywhere in the area. Not only that, but the given coordinates are incorrect; Tirpitz was actually much closer to shore. At coords 60 38'49.80"N 18 48'26.21"E is a large rectangular shape, which may have been mistaken for the hull. But it's actually a work platform from the scrapping. Elsquared (talk) 06:35, 27 September 2009 (UTC)

APOLOGIES. Google Earth was apparently experiencing some difficulty tonight. Inputting the original coords did not send me to the correct spot. They are correct, but I understand the object at that spot to be a work platform. Possible corroboration is found at http://www.bobhenneman.info/Tirpitzwreck.htm, where an image shows what's left, but underwater. I'm going to research this further to hopefully find a definitive answer. Elsquared (talk) 06:46, 27 September 2009 (UTC)

UPDATE. A forum thread at http://www.militaryphotos.net/forums/showthread.php?t=84544 shows a good photo from the surface of this large object, which it indicates is, quote, "The remains of the dock on the photo is just were the Tirpitz was sunk. It was used when they scrap[p]ed the ship after the war." Elsquared (talk) 06:58, 27 September 2009 (UTC)

Faked image

I've removed the link (for the second time!) to a photoshopped image of Tirpitz, as its hardly encyclopaedic.
OTOH the website has some useful views, so I've replaced it with another image from the same source.
If anyone wants to replace the original image, perhaps they should say first what on earth the point of it would be. Xyl 54 (talk) 22:58, 23 July 2010 (UTC)

"Sunk"?

Is it accurate to describe the Tirpitz as having been "sunk" in Operation Catechism? As I understand the sources, Tirpitz was moored on a sand bar and had only a few feet of water under her keel so as to make her incapable of sinking in the traditional use of the word. I assumed that she capsized belly up and THEN sunk a few feet, leaving it resting on the sea bed with her crew trapped inside and most of her hull above the water line. Can someone enlighten me? Bravo Foxtrot (talk) 18:20, 2 March 2011 (UTC)

Rewrite

To anyone who's interested, I've started a new draft of the article here with the goal of bringing the article eventually to FA. If you want to help with the project, feel free to do so, but only add material if you have a reliable source to back it up. Thanks. Parsecboy (talk) 20:32, 8 March 2011 (UTC)

I've now moved the draft over to the article space. Parsecboy (talk) 23:37, 25 March 2011 (UTC)

GA Review

This review is transcluded from Talk:German battleship Tirpitz/GA1. The edit link for this section can be used to add comments to the review.

Reviewer: Sturmvogel 66 (talk) 18:17, 26 March 2011 (UTC) GA review – see WP:WIAGA for criteria

1. Is it reasonably well written?

   A. Prose quality:

   A couple of tags to resolve.

   I only saw one - let me know if my change resolved it. Parsecboy (talk) 12:20, 29 March 2011 (UTC)

   B. MoS compliance for lead, layout, words to watch, fiction, and lists:

   Need publisher location for the Norwegian book.

    Done: It's Oslo. Manxruler (talk) 00:14, 29 March 2011 (UTC)

2. Is it factually accurate and verifiable?

   A. References to sources:

   B. Citation of reliable sources where necessary:

   C. No original research:

3. Is it broad in its coverage?

   A. Major aspects:

   Link standard and full load displacement as well as waterline and overall length in the infobox. What electronics did she have when built? What about her armor? Why do the figures for shp differ between the infobox and the main body differ?

   Links and armor added, shp in the infobox was for Bismarck, not Tirpitz, radar equipment added. Parsecboy (talk) 12:20, 29 March 2011 (UTC)

   Disambiguate caisson and add the armor to the infobox.--Sturmvogel 66 (talk) 12:57, 29 March 2011 (UTC)

   Done. Parsecboy (talk) 13:33, 29 March 2011 (UTC)

   B. Focused:

4. Is it neutral?

   Fair representation without bias:

5. Is it stable?

   No edit wars, etc:

6. Does it contain images to illustrate the topic?

   A. Images are copyright tagged, and non-free images have fair use rationales:

   B. Images are provided where possible and appropriate, with suitable captions:

7. Overall:

   Pass or Fail:

K-21 2/4 torpedoes

"Shortly after Tirpitz left Norway, the Soviet submarine K-21 fired a pair of torpedoes at the ship, both of which missed." K-21 fired 4 torpedoes at the Tirpitz. And 2 explosions were fixed. Source: War logbook of K-21 —Preceding unsigned comment added by 195.26.84.250 (talk) 20:30, 9 April 2011 (UTC)

If there were torpedo hits on Tirpitz, wouldn't you think it would have been recorded somewhere in german archives? Just hearing an explosion does not indicate a hit on target, it only indicates either a hit on something or they exploded at the end of their run after exhausting their fuel (if they were equiped with a timed fuze for self-destruction or having a similar installation). --Denniss (talk) 21:41, 9 April 2011 (UTC)

According to Garzke & Dulin, the sub fired only two torpedoes, both of which missed. Wartime first person accounts are notoriously unreliable and should not be given as much credence as the research of reputable historians. Parsecboy (talk) 02:56, 10 April 2011 (UTC)

1. "According to Garzke & Dulin, the sub fired only two torpedoes" - I'm very interesting about the source of their opinion! The Germans "had not heard" about K-21 and torpedoes attack, but the authors are absolutely sure about torpedoes count! The single (original) source of the attack's info is the K-21 war log. And there are 4 torpedoes in the salvo according to it (one by one with 4 sec delay). A primitive lie? So, what's about Garzke & Dulin historians' reputation? --Zh.Mike (talk) 21:33, 27 March 2012 (UTC)

2. "Just hearing an explosion does not indicate a hit on target" - I'm so sorry, but what's the cause of torpedoes' explosions at 2min 15sec after salvo? The torpedoes' (type 53-38 with Lunin's installation) max range was 4 km (~3 min) at 82 km/h, but explosions have been heard after 3 km. What "exhausting their fuel", what "self-destruction"? What ship(s) had torpedoes at 2.15? --Zh.Mike (talk) 21:33, 27 March 2012 (UTC)

Edit-war over image and numbers

i see there are some coalition here . First of all this user parsecboy ,started to edit this topic on 8 march 2011. And he started to edit characteristic,changing everything there, and NO ONE FROM HERE SAYING NOTHING ABOUT THIS.

And i edited photo which was before coming this user to edit here,and also edited characteristic like it was. parsecboy ,i would not allow you to mode this page like you want ,coming with stuff you take from who knows where ,if you have a problem go change americans war ships ,not here. — Preceding unsigned comment added by BogdaNz (talk • contribs) 14:38, 16 April 2011 (UTC)

All of my edits are sourced to reliable and highly regarded naval historians. You, on the other hand, have repeatedly attempted to insert uncited material. This is simply unacceptable. It doesn't matter what you will and will not allow. I'll be blunt: I'm an administrator, I've been here for 5 years, and am very experienced with Wikipedia, both in writing articles and the rules we must all follow as editors. I can assure you that if you continue to behave as you are currently behaving, you will be blocked indefinitely in a rather short period of time. The choice is up to you. Parsecboy (talk) 14:47, 16 April 2011 (UTC)

I would agree with you on the statistics, but the photo is in the public domain and comes from the US Navy Historical Section[3]; it has been cropped to remove the NH number, and it probably could be cropped more and make a decent photo for the article. I am going to revert back to your version based on sources, but give some thought to the image. Regards Seaphoto^Talk 19:59, 17 April 2011 (UTC)

The Altafjord image is fine copyright-wise (I used it lower in the article, FWIW) - this image is the one that does not demonstrate that it is either PD in the US or otherwise suitably licensed. The reason I didn't use the Altafjord photo is because it's low resolution and very grainy - it's not at all a good lead image. I also considered this image, but this is even worse, in my opinion, as it also suffers from low resolution and graininess, but it is also badly warped on either side. I actually gave it a great deal of thought when I started the rewrite, and I wasn't initially thrilled with using the recognition drawing. That being said, I think it's the best image to use in the infobox, especially considering the poor quality of the alternatives. Parsecboy (talk) 23:18, 17 April 2011 (UTC)

Might I suggest that the higher displacement figures be placed in a footnote, with an explanation that it was common for ships to add weight over time? Both sets of displacement figures are probably correct. Battleships of the Bismarck class, Koop and schmolke, p.18: Tirpitz= full load 1944 = 53500 mt, length overall = 253.6m, beam = 241.72m. Now having said this it seems to me that repeated changes with no sources by BogdaNz is not acceptable behaviour, and should have consequences.Damwiki1 (talk) 01:55, 18 April 2011 (UTC)

No harm in including both sets of figures. I have changed the heading to a more neutral one. --John (talk) 02:39, 18 April 2011 (UTC)

I see this guy instead to talk to us about all the changes that he did wrong, he go reports every person who wants to correct,probably his problem is mental. First of all ,does this guy understeand that we (readers)dont want to see a machete made by american in ww2 ,exactly in info box? Why?Because this machete dont ilustrate tirpitz and bismarck class.Is very poor image ,and there are mistakes that dont ilustrate bismarck class.in front behind the second turret,housing has a shape that is not listed in the design of bismarck class ,have a unusualy form ,not like tirpitz which is more like a triangle..... and there a some other issue. Even so,why on all warship from british and american side there are real photo on infobox ,and here is some toy illustrate picture?

On General characteristic ,i cant find a better source than the book made by Kjetil Åkra and John Asmussen "Tirpitz" which had over 386 page ,about the story of Tirpitz and the many attacks against her,contains camouflage schemes and 3-D images, information about life on board, based on many interviews, technical details, casualty list and many other things. It is the biggest book ever made of Tirpitz ,and it's highly accurated ,especialy on technical details,because Kjetil Åkra and John Asmussen had acces on Kriegsmarine documents ,and they did research for years ----It is not something they have made for them. In this are follows:

Displacement:-standard 43.900 tonnes

            -maximum 53.500 tonnes (1944) 

Length Overall:253,6 m

      waterline:241,72 m

Maximum draught:10,61 m (1944)

Speed:official recorded 30,8 knots

Sensor :FuMO 30 Hohentwiel was installed in 1944

971 men lost we should then added both displesment in 1941 and 1944 ,the speed is official recorded ,length same — Preceding unsigned comment added by BogdaNz (talk • contribs) 14:17, 21 April 2011 (UTC)

I don't know why we're still having this discussion - I won't waste the time to respond to your personal attacks. Erich Gröner, a German who had wartime access to the Kriegsmarine archives states 42,900t displacement as designed and 52,600t at full load. Conway's All the World's Battleships (the chapter on Germany was written by John Campbell, a highly regarded naval historian) reports the same figures. Siegfried Breyer gives the same figures in Battleship "Tirpitz". The same holds for the length figure (though Conway's gives a slightly different length: 241.1m lwl and 248m loa).

As for the speed and radars, the infobox should give the design of the ship as built. For instance, Tirpitz had the FuMO 30 for less than a year of her operational life, and did not carry it on a single operation. And trial speed rarely matches operational speed, especially when the former is conducted in the calm waters of the Baltic and the latter is the stormy North Sea and even more inclement Arctic. The ship would be hard-pressed to reach even design speeds in those conditions. Parsecboy (talk) 14:49, 21 April 2011 (UTC)

you really have problem boy,you seem that you dont want to discuss with nobody.ch iYou dont understeand that the speed design is just theoretical,which do not apply on seas,the official speed of tirpitz was 30.8 knots,was achieved in autumn of 1941 ,when autumn and winter of 1941 were brutal of the century in point of view of tempertature.You dont interest subject,you only want to edit a subject that you didnt read a book about it. What to trust more: the biggest book about Tirpitz or a citations in a chapter of a book?You must understeand that there are designed displesment which are wrong,is 43,900 mt not 42,900 and full load was 53,500 mt For those who want to see some samples about book made by Kjetil Åkra and John Asmussen : http://www.bismarck-class.dk/miscellaneous/book_reviews/mtm/mtm_tirpitz_book_review.html — Preceding unsigned comment added by BogdaNz (talk • contribs) 15:17, 21 April 2011 (UTC)

I'll be blunt. If you read any article on a German battleship or battlecruiser on Wikipedia (with the exception of German battleship Bismarck), you are reading my work. There is no one on Wikipedia who knows more about German capital ships than I do. I have in all likelihood read far more books on this subject than anyone else on Wikipedia. If you do not even know who Erich Gröner or Siegfried Breyer are and the weight their scholarly work carries, you frankly aren't informed enough on the subject to be having a serious debate on it. What you must understand is that these two, published, highly respected German naval historians disagree with the pair of Norwegians who run that website. John Campbell's work is highly regarded as well; for example, his Jutland: An Analysis of the Fighting is essentially the gold standard on accounts of the battle. The information reported by these historians is much more reliable than what the men who run that website state. Parsecboy (talk) 18:29, 21 April 2011 (UTC)

Again, I would urge that contradictory figures from competing sources be placed in a footnote and I am certain that both sets of displacement figures are correct, as Tirpitz was certainly heavier in 1944 than in 1941. G&D also gives displacement and dimension figures similar to Koop. Regarding speed, again this is not a static value and Tirpitz at full load will certainly be slower than on trials, and 29 knots seems a reasonable figure for full load, full power, while 30.8 knots seems quite unlikely except at an unrealistically low displacement and Koop does comment on this and states a speed on 29kn for Bismarck @ 138k MSHP at 43000 tonnes (note the unrealistically low displacement) and also gives a speed for Tirpitz as 29 knots at 138K MSHP but with no displacement noted. OTOH, he does give a speed of 30.1 knots for Bismarck at 150170 mshp and 30.8 knots for Tirpitz at 163000 mshp (all data from Koop, p.28-29.) but with no displacement given. It was common practise for the Continental European navies (Germany, France, Italy) to run trials at very low displacements with the engines producing overload powers, which could not be sustained for very long, to produce very unrealistic speeds that were not at all related to potential speeds during combat. For example HMAS Sydney was able to run down a RM cruiser Bartolomeo Colleoni which on paper was at least 5 knots faster.Damwiki1 (talk) 18:35, 21 April 2011 (UTC)

To avoid another editwar parsecboy knowing very little about hms vanguard i will make a comparation for him: Hms vanguard:displacement 42.500 tons standard

                           52,245 tons full load 

Tipitz displacement : 43.900 t stanbdard ,even parsecboy disc. of 42.900 beat

                     53.500 t full load 

tirpitz launched in 1939,vanguard 1944 as others measurements ,tirpitz is bigger in all sections

As speed of Tirpitz,was official noted when she was fully loaded ,and true tirpitz was alot heavier in 1944 . AS the speed of 29 knots ,this was designed at 138.000 shp when the engine are not fully pushed speed of 30,8 knots are with 163.026 shp when the engine is at maximum — Preceding unsigned comment added by BogdaNz (talk • contribs) 18:41, 21 April 2011 (UTC)

Vanguard's standard displacement was 44,500 metric tons, full load was 51,420mt, according to Conway's All the World's Battleships, p. 99. That's higher than even your asserted standard displacement. I don't know where you are finding your figures. Parsecboy (talk) 18:45, 21 April 2011 (UTC)

G&D (p.301-302)state Vanguard's standard displacement as 46,842 mt in 1946. Raven and Roberts (p335) give standard displacement as 44614lt or 45330mt and full load is given as 51537lt or 52364mt, but the table of weights suggests that 46102lt and thus 46842mt is the actual standard displacement (according to the WNT definition) since liquid weights subtracted from deep should equal standard. Regarding Tirpitz and Bismarck speeds, the only official speed trial data known to exist states:

"Speed 28.374 knots. Footnote 2. Data from the protocol of the speed trials on 2 November 1940. The speed data are based on an average output of 39170 shaft HP (WPS =Wellenpferdestärke)) per screw and 249.5 RPM per screw at a load addition of 75% and a draft of approx. 8.50 m. Other documents are not available. (Authors note. The document does not say if this concerns "AK Fahrt" (Äußerste Kraft), i.e. extreme full-power speed. The source of the speeds of 30.4 kn, 30.6 kn or 30.8 kn given in the current literature, is puzzling. Blohm & Voss states 30.1 kn." (From: Schlachtschiff Bismarck: Das Original im Detail, Simon Frey Verlag, 2004, p.8.)" Photos of Bismarck prove that she was not yet completed (no main armament directors) when the Nov 2 1940 trials were run, and a very low displacement is likely. Groner's data regarding speeds seems to me to be reasonable based upon the available sources, but again the debate can be summarized in a footnote and the competing sources given there, so I would suggest that we use Groner's data for the article and summarize the other data in a footnote.Damwiki1 (talk) 21:12, 21 April 2011 (UTC)

That's perfectly fine with me. I don't want to include Asmussen and Åkra's book though, it's essentially a self-published source (some small non-notable museum doesn't exactly count as an academic publisher). Parsecboy (talk) 19:03, 22 April 2011 (UTC)

Alright, I've added a footnote with Koop & Schmolke's displacement figure. Parsecboy (talk) 19:14, 22 April 2011 (UTC)

One note:tirptiz was a lot heavy in disceplement as it's sister also was slightly bigger in length Bismarck length overall 251 and waterline 241,5 tirpitz:length overall 253,6 and waterline 241,7 and the same as draught 9,9 is tirpitz and bismarck 9,33 and maximum tirpitz 10,61 and bismarck 10,3 and damwiki1 you citaded there a source about bismarck ,and there are big difference from 39170 shaft HP and 163026 shaft hp — Preceding unsigned comment added by BogdaNz (talk • contribs) 15:41, 23 April 2011 (UTC)

Presumably the 39k figure is the horsepower per shaft while the 16k figure is the total horsepower from all four shafts combined. And can you please figure out how to sign your posts. It's four tildes (Parsecboy (talk) 15:44, 23 April 2011 (UTC)). Parsecboy (talk) 15:44, 23 April 2011 (UTC)

Tirpitz had 3 shafts, so 3 x 39170 = 117.5K mshp but a draft of 8.5m indicates a very light ship, probably about 43K mt. So we have 117.5K mshp = 28.374 kn at ~43K tons, 138k mshp = 29 knots at 43k mt, and this shows a very steeply rising power curve. The power required to drive a ship rises roughly in proportion to the loading, so if Tirpitz required 117.5K mshp to do 28.374 knots at 43k tons, then she would need about 144.8k mshp to do the same speed at 53k mt, and if Tirpitz required 138k mshp to do 29 knots at 43k mt then she would need about 170k mshp to do 29 knots at 53k mt! This data indicates that the claims for 30.1 or 30.8 knots for Bismarck and Tirpitz can only be achieved at very light displacements, and that at typical combat displacements a maximum speed of 29knots or less in very likely just as Groner states.Damwiki1 (talk) 17:44, 23 April 2011 (UTC)

Image from Bogen/Ofotfjord wrongly labelled Altafjord

Since I know that area of the Norway well I know 100% sure that this

image is Bogen in Ofotfjord in Evenes municipality near Narvik, and not Altafjord. I will give some sources. This source give some more images from Bogen/Ofotfjord: [here]. Better images here, as it provides images from Bogen then and now so it is easy to see this is the same fjord branch with the same hills and mountains. You can se the same image position in the first image as the image used in article. This is not Altafjord, not even close. It is Bogen in Evenes, near Narvik. Orcaborealis (talk) 23:55, 23 December 2011 (UTC)

The image provider (the US Navy archives) captions the image as having been taken in Altafjord. That this is apparently incorrect needs to be supported by a reliable source, not what you know about the area or what either of us can tell from other pictures. One possibility is to contact the Navy archives department with the information you have, which should prompt them to correct the caption. Parsecboy (talk) 20:38, 24 December 2011 (UTC)

The link provided, showing Bogen then and now, with and without Tirpitz, is a good source. The article should be as correct as possible, and thus take this into account. If anyone know who to contact in US Navy, then this should be done as well. Orcaborealis (talk) 16:03, 25 December 2011 (UTC)

Read the links I provided above - those websites are self published sources, which are generally not acceptable, especially for an article being evaluated for Featured status. Parsecboy (talk) 18:28, 25 December 2011 (UTC)

Ehrler

I am dubious about this: "Many veterans of his unit regard him as having been a convenient scapegoat for his superiors' failures. " Even if referenced, this seems unsuitable for the article. What does the source say? --John (talk) 12:44, 25 December 2011 (UTC)

I'm away for Christmas, but I should be able to provide you with the exact quotation in a couple of days. Parsecboy (talk) 14:02, 25 December 2011 (UTC)

Thank you. I am familiar with the story, and I accept the truth and verifiability of the statement I quoted. However, I think there is a problem with NPOV here. It is a fact that the Norway-based arm of the Luftwaffe underperformed miserably. Whether it was Ehrler's fault seems to be under debate but I don't think what we have covers the complexity of the situation adequately. Let me also have a look for sources over the next days. --John (talk) 14:17, 25 December 2011 (UTC)

I have edited this section with an online source I found. I hope it is acceptable; it seems more NPOV to me. --John (talk) 20:35, 25 December 2011 (UTC)

That looks fine to me. Thanks for working on this. Parsecboy (talk) 12:55, 26 December 2011 (UTC)

Move reverted

I reverted a move of this article to Tirpitz (battleship) per Wikipedia:Naming conventions (ships) that states "For ships of navies or nations that don't have a standard ship prefix, name the article (Nationality) (type) (Name):" as Germany did not use a prefix in WWII. Courcelles 06:48, 7 January 2012 (UTC)

• Agreed, that seems like the better name. --John (talk) 09:20, 7 January 2012 (UTC)
  • Yes, this is the correct title per the naming conventions you linked, Courcelles. Parsecboy (talk) 11:53, 7 January 2012 (UTC)