USN air combat data from Office of Naval Intelligence

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Apollo11
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Some more Bismarck stuff...

Post by Apollo11 »

Hi all,
HMSWarspite wrote: <snip>

The Denmark Straits battle could have resulted in Bismark (an obsolescent BB, that in her only other surface action did remarkably badly, not landing a single hit) destroying one BC and crippling another in less than 15 minutes.... I wonder how we would be modelling Bismark if that happened!

<snip>
I have book:

"Battleship Bismarck"

by Burkard Baron von Mullenheim-Rechberg

ISBN 1-84158-119-4

It was written by highest ranking Bismarck survivor (he was gunnery officer in
after fire control station).


According to him in his book he says that Bismarck was unable to score any
hits in the 2nd battle because:

- she was unable to go straight (due to jammed rudder from Swordfish torpedo
attack) and that severely messed up gunnery

- the foretop fire control station (main on the ship) was knocked out almost
at the beginning of the 2nd battle


BTW, what remains mystery to me is why Bismarck went NW (i.e. towards the
enemy) after fatal hit by Swordfish torpedo instead of SE (i.e. towards
France).

There was no logical explanation in book and all people with maritime
experience I asked that same question had no plausible answer (i.e. why going
NW was possible and 180 deg reverse course SE was not)...


Leo "Apollo11"


P.S. "HMSWarspite" I love your signature - Blackadder was great!
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Post by Mike_B20 »

I believe the direction Bismarck could steer was affected by wind direction and strength.
She would turn into the wind but because of the wind and wave pressure on her bow she could not turn through it, the rudder being jammed at an insufficient angle to effect the turn.
I read an account of the action by Burkard Baron von Mullenheim-Rechberg
in which he states that Tovey was at a tactical advantage because the Bismarck was reduced to steering into the wind and this seems the likely explanation.
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Chance and Accidents

Post by mogami »

Hi, Bismarck sinks Hood by fluke then she has fluke damage done to herself that results in her loss. Seems like boxcars or snake-eyes when 7's are the most common result
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Post by Tristanjohn »

Mogami wrote:Hi, Bismarck sinks Hood by fluke then she has fluke damage done to herself that results in her loss. Seems like boxcars or snake-eyes when 7's are the most common result
But Bismarck didn't sink Hood by means of a "fluke" but by means of any number of easily computable factors of the battle: 1) Hood was forced to advance head on to Bismarck in an attempt to close range as quickly as possible in order to mitigate against her very certain vulnerability to Bismarck's plunging fire, 2) Admiral Holland decided unwisely to lead with Hood instead of Prince of Wales, 3) Bismarck had distinctly superior fire control solutions than did Hood, and while PoW had theoretically better fire control than Hood her batteries were masked to open the action and in any event this ship was spanking new, hadn't even completed her initial workups, her crew was green, it turned out her quadruple turrets were inherently compromised in critical respects, etc. 4) Holland turned to port rather severely at speed at the wrong instant in time, thereby presenting a larger flushed-deck profile to incoming German rounds, 6) Hood in any other more favorable circumstance was not a match for Bismarck or in fact a match for any capital ship of that era with 14" rifles or greater . . . and on and on and on.

It was not a "roll of the dice" but rather much more like a foregone conclusion that Hood was not in for an especially good day, Mogami.

As for the damage done to Bismarck: that wasn't a "fluke" either and in fact the damage inflicted on her by a torpedo launched from an RN Swordfish could well have been much worse given that the first RN strike had expended itself uselessly (and dangerously) in a mistaken attack on one of its own ships.

It was also not a "fluke" that Bismarck should have been caught in mid-ocean alone instead of accompanied by her consort Prinz Eugen but rather due to the commanding German admiral's decision not to top off Bismarck's oil bunkers prior to weighing out of Norway. Neither was it a "fluke" that a round from a PoW salvo hit Bismarck forward on her port side and ruptured one of those bunkers, thus causing her to lose yet more precious fuel, which lead directly to the German admiral's decision to send Prinz Eugen on her convoy-raiding way and return alone with Bismarck to France in order to affect repairs.

The encounter had nothing to do with "rolling the dice." It had a lot to do with hard decisions made by men of flesh and blood in the unforgiving cauldron of battle.
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flukes

Post by mogami »

Hi, I'm not surprised you comeback in such a manner. You seem to argue everything I post. Did you just say that "it was easily to compute" that Bismarck would sink Hood with only 1 hit? That Bismarck would be hit in a fuel bunker while low on fuel.
Be hit by a torpedo after half the attacking aircraft had already been wasted?

"The encounter had nothing to do with "rolling the dice." It had a lot to do with hard decisions made by men of flesh and blood in the unforgiving cauldron of battle"

Duh, decisions taken by commanders are "rolling the dice" deciding not to refuel in Norway was rolling the dice fuel would not become an issue.
When the platoon leader orders a bayonet attack on a enemy position he is casting the die, When a fighter pilot picks an enemy aircraft to attack he is casting the die. Arty rounds in flight, torpedos running toward enemy, every almost factor or decision made in war is subject to the element of chance. The round that destroyed Hood could have been a dud.

Is it also easy to compute the Butch O'Hare will shoot down 5 Betty bombers in a single combat with out being hit in daylight but then will be shot down by a single Betty at night? (appears to me to be a really good roll one day followed by a really bad roll one night)
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Post by PzB74 »

When I played around with 'Action Stations' - a warship simulation that was pretty good for its time - the Bismarck and Prinz Eugen usually won the battle against their British counterparts. The Hood didn't blow up very often though, and the Bismarck usually received more hits and took more damage than it did in the Battle for the Denmark Strait.

In my opinion the German ships had a qualitative edge that would give them an edge, but it had to be combined with a strike of good luck to blow the Hood right out of the water before it could hit back.

British battlecruisers have never been lucky ships though.... The Germans blew up several of them at the battle of Jutland. Admiral Beatty said that : 'There seems to be something wrong with our bloody ships today!' The reason for the magazine explosions on these ships was that cordit was stored in the turrets and when these were hit and burned, the fire spread to the magazine below.

This weakness wasn't Hoods achilles heel though, it was simply just not heavily armoured enough to take on a modern battleship 20 years newer than itself. So I would say it was both bad luck and inferior quality that caused the ship to blow up - these things tends to be closely related though :D

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Post by Tristanjohn »

PzB wrote:When I played around with 'Action Stations' - a warship simulation that was pretty good for its time - the Bismarck and Prinz Eugen usually won the battle against their British counterparts. The Hood didn't blow up very often though, and the Bismarck usually received more hits and took more damage than it did in the Battle for the Denmark Strait.
Well that's right. Luck, karma, destiny, call it what you will these "factors of fate" always play a role in events. Then again, "luck" has a way of favoring the commander who is the best prepared.

Action Stations! wasn't just "good for its time" but still represents state of the art for computer-based naval simulations in all respects except two: the CGA graphics and three-minute turns. The only computer naval simulation to approach the AS model in terms of "accuracy" was SSI's rather brilliant in its own right Great Naval Battles of the North Atlantic (Volume I).
In my opinion the German ships had a qualitative edge that would give them an edge, but it had to be combined with a strike of good luck to blow the Hood right out of the water before it could hit back.
Correct again. The Kriegsmarine ships had flaws of their own, especially Prinz Eugen, but on balance their "technological builds" were superior to anything possessed by the Royal Navy, most especially with regard to Bismarck.
British battlecruisers have never been lucky ships though....
They certainly had their share of "bad days" but this owed less to "luck" than their very compromised designs.
The Germans blew up several of them at the battle of Jutland. Admiral Beatty said that : 'There seems to be something wrong with our bloody ships today!' The reason for the magazine explosions on these ships was that cordit was stored in the turrets and when these were hit and burned, the fire spread to the magazine below.
Yes, all three RN BCs at Jutland blew up due to the same flash effect, as did Hood in her action versus Bismarck. A sort of "easily computable" factor when all is said and done. :)
This weakness wasn't Hoods achilles heel though, it was simply just not heavily armoured enough to take on a modern battleship 20 years newer than itself. So I would say it was both bad luck and inferior quality that caused the ship to blow up - these things tends to be closely related though :D
Well, Hood was not capable of being retrofitted into a completely effficient battle-fleet asset. Her inherently poor design prohibited against any such fix. Had enough armor been applied to her decks and sides to proof 15" rifles she would have had no more stability in the open sea than a paddling canoe, indeed, might have just turned turtle at dockside before her shakedown could be commenced so topheavy would this remodeling have made her. Hood was already too heavy from the initial efforts to correct that inherently poor design she was saddled with to the extent that she went to sea with next to z-e-r-o freeboard along her quarterdeck and heeled over in a fightening manner whenever asked to respond to a hard rudder--this latter handling characteristic of the ship played a significant role in her destruction after a 20-degree turn to port (to unmask her X and Y turrets) had been ordered--this caused Hood to heel to starboard and thus present to German fire a broader (more exposed) aspect of deck.
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Post by HMSWarspite »

I am really puzzled by your reaction the comment that history is decided by rolls of a dice. I understand that there were no dice on the bridge of the Bismark :D , and the events of 31May41 were determined by a whole sequence of events. However, a game has to model things. Take 15" German shells; I do not have a clue what the fraction of them that would fail to expload was, but a number would. This would be due to:
- design errors in the fuse (say a critical element wasn't strong enough in certain circumstances, like ,in the extreme case, the US Mk 14 torpedo when hitting square on would distort the fuse and render in inoperable),
- non-conformance in the fuse or shell (a part made wrong so the thing doesn't work)
- something peculiar in the shell/armour engagement geometry (for example the shell that hit PoW - may not have exploaded because it tumbled on hitting the sea
- etc etc etc.

How are you going to game this: your arguements (to me) seem to imply that the detailed fuse tolerances of every shell fired should be generated some how (presumably by modelling the machine tools that made them, and the operator, since you don't like dice), the shell tracked though the firing process, and flight, on to the target. The target then has to be modelled to determine the fuse initiation parameters, and then you 'know' whether the shell will expload, and what damage it will do.

Now, getting real, this same sequence is modelled by a table of probablilty, and a random number: AKA a roll of the dice.

Tristanjohn wrote:But Bismarck didn't sink Hood by means of a "fluke" but by means of any number of easily computable factors of the battle:
I dispute that any of your factors are 'easily computable'!

1) Hood was forced to advance head on to Bismarck in an attempt to close range as quickly as possible in order to mitigate against her very certain vulnerability to Bismarck's plunging fire,
No one forced anything: Holland CHOSE to deal with the issue that way. Why? Would he have made the same decision the day before, or after? Would any external factors have altered his choice? Cloud/visibilty? Exact time of sighting (rel sun rise)? Exact bearing of sighting? And so on.
2) Admiral Holland decided unwisely to lead with Hood instead of Prince of Wales,
Explain please how this changes anything (in terms of assessing whether Hood blows up - but don't get me wrong, I would probably have lead with PoW, but then I would have split the two ships anyway, and that is a different story)? Bismark may well have engaged the lead ship initially, but given PoW's fire control and turret problems she would have likely wanted to change target to Hood to attempt to hinder her. Would Hood still have been in the critical range window? Depends. PoW could have taken some hits early and suffered damage (Bismark's early salvos were very accurate - no reason to suppose that would change in PoW was leading). All somewhat difficult to assess?

3) Bismarck had distinctly superior fire control solutions than did Hood, and while PoW had theoretically better fire control than Hood her batteries were masked to open the action and in any event this ship was spanking new, hadn't even completed her initial workups, her crew was green, it turned out her quadruple turrets were inherently compromised in critical respects, etc.

4) Holland turned to port rather severely at speed at the wrong instant in time, thereby presenting a larger flushed-deck profile to incoming German rounds, 6) Hood in any other more favorable circumstance was not a match for Bismarck or in fact a match for any capital ship of that era with 14" rifles or greater . . . and on and on and on.
Exactly how did these issues (particularly you point 4) affect things? There is dispute as to whether Hood had actually started, or how far round the turn she was. All that can be said IIRC, is that some witnesses thought she was turning, and her rudders were found to Port. Whether the turn, and any heel affected the shell impact point is moot, and insoluble.
It was not a "roll of the dice" but rather much more like a foregone conclusion that Hood was not in for an especially good day, Mogami.
It was most definately not a forgone conclusion that Hood would blow up. Hood was going to be damaged, but then so (probably) was Bismark. It would depend on how many hits Bismark landed before taking significant damage herself, and whether Holland pulled off as soon as her was sure Bismark was slowed/damaged. If he didn't pull off, or didn't get the necessary damage, Hood would not have stood up well in all probablity. I hope you do not really think that any game of the Denmark Straits should blow Hood up every time?.
As for the damage done to Bismarck: that wasn't a "fluke" either and in fact the damage inflicted on her by a torpedo launched from an RN Swordfish could well have been much worse given that the first RN strike had expended itself uselessly (and dangerously) in a mistaken attack on one of its own ships.

It was also not a "fluke" that Bismarck should have been caught in mid-ocean alone instead of accompanied by her consort Prinz Eugen but rather due to the commanding German admiral's decision not to top off Bismarck's oil bunkers prior to weighing out of Norway.
See discussion of Hollands decisions above. Do you know why the refuelling was not done? What might affect that?
Neither was it a "fluke" that a round from a PoW salvo hit Bismarck forward on her port side and ruptured one of those bunkers, thus causing her to lose yet more precious fuel, which lead directly to the German admiral's decision to send Prinz Eugen on her convoy-raiding way and return alone with Bismarck to France in order to affect repairs.
Here I really struggle. Lets define some terms: fluke=low likelihood of success that actually comes off. Now, the geometry of the engagement was such that the shell hit where it did. But where was the effectlive mean point of aim (or the centre of the CEP if you prefer?) What is the shape and size of the CEP of the 14" on PoW projected on to the Bismark at the point of impact? If you go the maths (impossible in reality) I suspect there is a very small chance of getting the shell where it was EVEN GIVEN THE EXACT SAME mean shell trajectory. I may be wrong, but in my book, the hit was a fluke. You could land a 14" in many places on the Bismark and not have the same effect on the voyage.
The encounter had nothing to do with "rolling the dice." It had a lot to do with hard decisions made by men of flesh and blood in the unforgiving cauldron of battle.
Indeed, there were few if any dice at sea that day, but 'rolling the dice' is a reasonable way of thinking about history, and the only way to model it in a game.

[edit to tidy up]
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Post by Tristanjohn »

HMSWarspite wrote:I am really puzzled by your reaction the comment that history is decided by rolls of a dice. I understand that there were no dice on the bridge of the Bismark :D , and the events of 31May41 were determined by a whole sequence of events. However, a game has to model things. Take 15" German shells; I do not have a clue what the fraction of them that would fail to expload was, but a number would. This would be due to:
- design errors in the fuse (say a critical element wasn't strong enough in certain circumstances, like ,in the extreme case, the US Mk 14 torpedo when hitting square on would distort the fuse and render in inoperable),
- non-conformance in the fuse or shell (a part made wrong so the thing doesn't work)
- something peculiar in the shell/armour engagement geometry (for example the shell that hit PoW - may not have exploaded because it tumbled on hitting the sea
- etc etc etc.
I could plough through your post point by point but I'm just not in the mood.

In general a competent model works with all known data to affect realistic (or at least reasonable) outcomes. A model which attempts less than this is not competently rendered and possibly not even true to its own design philosophy.

As for the particular engagement under review, I suggest you start here and learn the facts before making baseless statements that only serve to confuse the discussion: http://tinyurl.com/ow3b

Should you not be willing to educate yourself beforehand as to the salient facts I see no reason why I should knock myself out. On the other hand, if you do wish to carry on an informed dialogue I'd be more than happy to talk it over with you.

Your move, Warspite.
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Post by Tristanjohn »

HMSWarspite wrote:Indeed, there were few if any dice at sea that day, but 'rolling the dice' is a reasonable way of thinking about history, and the only way to model it in a game.

A mistaken conclusion (due to your non sequitar).

You just don't know what you're talking about, Warspite, and unfortunately you are not the only one around here in that condition.
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Post by IronDuke_slith »

Tristanjohn wrote:What the document illustrates statisically, among other things, is that the "Zero" had no advantage whatsoever over the Wildcat or in fact over any fighter flown by USN or Marine pilots based on kill ratios.

I've got to tell you that this forum is just chock full of Axis apologists. And why I couldn't say. The Axis leadership was not made up of beautiful human beings but rather monsters, the Axis war aims were themselves, in a word, monstrous.

What is this fascination with all things Axis, from where does this need come to develop fantastic rationalizations in order to excuse anything resembling an Axis shortcoming?

Frankly, I don't get it.

Please humour me and explain why someone stating (whether he was right or wrong) that the Zero was a better fighter aircraft than the F4F makes him an apologist for the NAZIs? :confused:
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Post by Hoplosternum »

Tristanjohn,

Hood was not a very badly designed ship. She just was not a Battleship and so had not the protection needed for fighting Battleships. While I think she was unlucky to have blown up any salvo (of none dud) 15" shells from Bismark was likely to wreck her. PoW may have still been in the fight after a direct salvo but Hood was never likely to be.

Jutland had shown that BCs were vulnerable to large calibre fire. But certainly in WW2 they had a role. They were perfect for hunting down the German raiders. Hood (and the smaller RN Battlecruisers Repulse and Renown) were the only British ships initially who could catch and sink the Pocket Battleships. They could also keep pace with the German Heavy Cruisers and Scharnhorst class ships. Britain had a terrible need for such vessels.

So I think Hood was just not the ship to take on Bismark. But that does not make her a poor ship. She was not a Battleship and no refit was going to make her into one.

You seem to be unhappy when people mention chance and dice rolling. As you are a boardgamer I find this quite strange :) I really think you are not going to like any realistic Battleship v Battleship simulation. BB to BB fighting is like a Heavy Weight boxing fight. You have a good idea who's the best before the fight starts but the underdog is still strong enough to floor the other guy with one good (lucky) punch. If Hood or POW had hit Bismark first with a salvo the German ship may not have blown up but there was a chance she would have been knocked out of the action. None of the three Capital ships involved could simply shrug off the 14" and 15" shells used on either side. Bismark and POW had more protection but they could still be hurt.

I too have played and enjoyed Great Naval Battles. But there were many times when the weaker ship got lucky and then went on to cripple or sink the stronger. It's model with hit locations and three decks per ship is far more detailed than anything that is likely to be in WitP or UV. But 'dice rolling' there certainly was!
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Post by pasternakski »

Tristanjohn wrote:non sequitar.
That's non sequitur, Mr. Highbrow. If you're going to be a condescending pr1ck, the least you could do is know how to spell the words and phrases you use in the attempt. You might also want to familiarize yourself with meanings, as I don't believe that this is what you intend to accuse Warspite of.

In any event, all he is saying is that die rolls have been the chosen method of "randomizing" results ever since the beginning of wargame design (flipping a coin being the roll of a two-sided die, of course). History is not, of course, a matter of "die rolls." It is, however, greatly affected by the vagaries of chance. When you set out to model history, you need a means of randomization. Die rolls have worked well. You got something better?
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Post by HMSWarspite »

Tristanjohn wrote:A mistaken conclusion (due to your non sequitar).

You just don't know what you're talking about, Warspite, and unfortunately you are not the only one around here in that condition.


That's right, when you have a complete grasp of your subject, and obviously all the correct arguments, a gratuitous personal insult always wins around the doubters. Good play I do not think!

You, sir, are an opinionated, rude, and thoroughly obnoxious person. You repeatedly raise arguments, but as soon as someone challenges them you change the basis of your point, or resort to personal attacks. Try something for me will you...just once try writing " that is a good point that I had not considered, I will go away and think about it"
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Post by Mike_B20 »

The Hood has been found and photographed.
The following is a link to a photo of Hoods rudder...turned to port.
http://www.channel4.com/history/microsi ... lery.html#
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Post by HMSWarspite »

Tristanjohn wrote:I could plough through your post point by point but I'm just not in the mood.

In general a competent model works with all known data to affect realistic (or at least reasonable) outcomes. A model which attempts less than this is not competently rendered and possibly not even true to its own design philosophy.

As for the particular engagement under review, I suggest you start here and learn the facts before making baseless statements that only serve to confuse the discussion: http://tinyurl.com/ow3b

Should you not be willing to educate yourself beforehand as to the salient facts I see no reason why I should knock myself out. On the other hand, if you do wish to carry on an informed dialogue I'd be more than happy to talk it over with you.

Your move, Warspite.

Your description of mathematical modelling does not take many factors in to account. I spend a large part of my working life attampting to model infrequent events, and predicting the likelihood of a recurrance. You can model these events in many different ways. For example:

a) Plot the data vs time, fit a curve, extrapolate to desired date, to give the number of events by then (simplistic, but can be appropriate in some cases)
b) I have had 20 events, and 1 was serious, therefore the chance of a serious event is 1 in 20. (More 'scientific', but only c50% confidence of being 'correct' by classical stats
c) use of a more Bayesian statistical approach, i.e. some form of expectation of the situation, and test the probabilty of the real data against your expectation,
d) actually model the physics. This is by far the least useful, because of the huge number of unknowns, that basically mean you can get the model to do anything you want, and even if there is data available, you end up 'bending' the model to fit the observed results. In other words, you are tending back to a)
and so on.

The point of all this is that VARIOUS DEGREES OF APPROXIMATION ARE APPROPRIATE IN DIFFERENT SITUATIONS!

If I roll a 100 sided die to generate the random element of an event, and I know the EXACT probability of something happening to the nearest 1%, I have a valid model. Knowing the probabilty to 0.1% does not improve my model, since I cannot exploit it. The second model is not better in this case, it is just more complicated for no gain. Now, if I need to model events with an actual probabilty of 0.1%, my system is not accurate enough, since I either have to ignore it (P(happens)=0), or I have to over rate it (P(happens)=1%). In this case, I can either have 2 D100 rolls, or use a 1000 sided dice. See the point?

Of course, you (in reality) have the situation where the probabilty of an event happening is something like 5% +/-4.9%, in other words the model really doesn't matter, and the uncertainty in the real probablity swamps the 'benefit' od an better resolution on the model. In this case, arguing over the model is rather a waste of time.

In your view of a completely deterministic model, (no dice), how do you model the fact that every weapon since Ug the cave man threw his first spear has had an inaccuracy (circular error probable if you like). What it means is that even if you eliminate all possible errors (bolt the gun down, use a still day etc), the succesive shots will not hit the same point, they will fall in a circle - the CEP (simplistically). Now, for large naval guns, the CEP could be the difference between a turret hit, and a clean miss, or a belt hit, or a deck hit. Now, if you dont use dice to determine where the shell lands (even if you know everything else), how are you going to decide where it lands? Model the cordite, the barrel temp, the exact shell tolerances, the exact shell weight, density, etc, etc? I think not. So maybe you leave them out, and every shell would hit the same place? Please do tell us (or are you too busy trying to come up with a model of the atmosphere to put in the next war game you do?)

On the Denmark straits battle, thank you for the link, I see your link, and raise you:
http://www.warship.org/no21987.htm (which is referenced in your link to be fair.) This article is a balenced discussion, and comes out with a cordite room penetration (NOT a cordite flash back to a magazine as you imply earlier).

I also offer you this analysis of the Bismark http://www.combinedfleet.com/okun_biz.htm
(since earlier someone stated that Bismark was 20 years younger inndesign). It shows that whilst she was indeed 20 years younger, there were several flaws in her design, caused by the lack of heavy ship building in Ge in the 20's and early 30's, that mean she had her pecularities also.

Of course, what all this has to do with the effectiveness of the Zero in 1942 is anyone's guess

:confused:
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HMSWarspite
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Post by HMSWarspite »

Hoplosternum wrote: I too have played and enjoyed Great Naval Battles. But there were many times when the weaker ship got lucky and then went on to cripple or sink the stronger. It's model with hit locations and three decks per ship is far more detailed than anything that is likely to be in WitP or UV. But 'dice rolling' there certainly was!
That game is a classic case of the apparent degree of modelling (3 decks per ship, and hit locations) looking as if it is very detailed and 'realistic'. However, when you look in to it, it isn't detailed at all. All ships the same below decks (except for the number of shafts). Ships have turrets, and magazines. The ammo mysteriously teleports from one to the other. Never had one of my ships have an ammo feed problem due to a hit on the barbette, or one of the handling rooms. Just turrets, and magazines. All spaces have 3 states only (OK, damaged, destroyed). No 'one hoist destroyed, fire at reduced rate'.

Whilst not 'looking' as good, an old table wargame system of a hits effect table is probably more accurate.
(Made up simple example)
given hit, roll effect
1-50% crew space/non fighting hit (no immediate effect)
51-63% waterline hit - belt roll for penetration, then roll for effect if penetrated
64-69% waterline outside belt - have some floatation damage
70-79% main turret (roll for which), roll for armour penetration, then effect
80-86% barbette hit as above
etc etc
This sort of table usually ends with 100% magazine hit (roll for effect)!

My point is that the crude table above may be more 'accurate' than the pretty pictures in GNB.
I have a cunning plan, My Lord
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Hoplosternum
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Post by Hoplosternum »

Warspite,

I don't doubt you're right about GNB. I never believed it was a very realistic game. I did love the 'campaign' though, a lot of fun played from either side. Yet when they redid the game for GNB4 they took it out :(
Allies vs Belphegor Jul 43 2.5:2.5 in CVs
Allies vs Drex Mar 43 0.5:3 down in CVs
Japan vs LtFghtr Jun 42 3:2 down in CVs
Allies vs LtFghtr Mar 42 0:1 down in CVs
(SEAC, China) in 3v3 Apr 42
Allies vs Mogami Mar 42 0:1 down in CVs
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Apollo11
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Post by Apollo11 »

Hi all,
Mike_B20 wrote:I believe the direction Bismarck could steer was affected by wind direction and strength.
She would turn into the wind but because of the wind and wave pressure on her bow she could not turn through it, the rudder being jammed at an insufficient angle to effect the turn.
I read an account of the action by Burkard Baron von Mullenheim-Rechberg
in which he states that Tovey was at a tactical advantage because the Bismarck was reduced to steering into the wind and this seems the likely explanation.
So it was sea/wind direction after all (combined with jammed rudder due to
Swordfish torpedo damage)...

BTW, I asked some experienced sailors last year about this but they were all
unable to give any satisfactory answer.


Leo "Apollo11"


P.S. That German account was from my book (see detailas and ISBN in my first post)
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Prior Preparation & Planning Prevents Pathetically Poor Performance!

A & B: WitW, WitE, WbtS, GGWaW, GGWaW2-AWD, HttR, CotA, BftB, CF
P: UV, WitP, WitP-AE
HMSWarspite
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Location: Bristol, UK

Post by HMSWarspite »

Hoplosternum wrote:Warspite,

I don't doubt you're right about GNB. I never believed it was a very realistic game. I did love the 'campaign' though, a lot of fun played from either side. Yet when they redid the game for GNB4 they took it out :(
I initially thought that game was potentially the answer to my dreams. However the AI on the campaign was so poor that I found it no challenge. (This was well before TCP/IP, and it was RT, so PBEM was out). Playing the British, it was just a case of waiting for the Ge capital ships to put to sea, and then I could always intercept them. I think that there was also an element that the RN did not have the full range of constraints on the use of their ships (always had too many BB available, which contributed to the effect above). Playing Ge was better, but still didn't hack it - very easy to avoid the RN heavy ships, except those escorting convoys, which were usually R class, and easy to out run.

In tactical combat, the BB fights were OK (although the AI was poor again). The biggest problem was the modelling of damage on small ships. DD and CL etc had the same number of spaces as BB etc. Although shells were meant to damage more than one space, and hence cause relatively more damage on a DD than a BB, I did not see this happening. I ran tests, where a single DD sailed dead straight and was fired at by a BB main armament. The DD took an unreasonable number of large calibre hits to sink or even become ineffective (dont remember the details now).

They addressed this with GNB2-5, by smaller ships having less spaces, but the AI issue still didn't work for me.

My ultimate dream game would be GNB5 (the WW1 one), with better AI, FoW covering your own side as well as the enemy, and a campaign (WW1 was the last development of the full fleet fight pre aircraft).

I was in a North Sea WW1 campaign (table top) whilst at Uni, and it was great fun. However, the RN superiority was so big (the organiser has models of every ship in North Sea, down to CL, and a large number of DD!), that (as overall commander of the RN) I was under no pressure. Any game of the above should either model the whole naval war, or keep robbing the Grand Fleet, keep them moving bases, somehow reproduce the concerns about mines and subs at Scapa, as happened in history. Otherwise, you get what happened in our campaign. The Ge players managed to sink some Pre-dreads in the channel on a couple of occasions (although with loss of light forces - on one occasion the RN BC's, and the some forces from Harwich - 8 Town class cruisers, and a swarm of DD managed to sink 29/30 of the newest class of German DD). Eventually in mid 1915, whilst trying another ambush on a section of the RN, the Ge Admiral was a little non-plussed to find a division of Grand Fleet Dreadnoughts loom out of the mist. This would not have worried him, but the remaining 20 odd BBs did! I caught him in mid North sea, full fleet to full fleet. The battle was 'inconclusive' tactically. I can't remember how many ships I lost (not many - the turret flash back effect had started to go away by then, because I had lost some pre dreads to it the previous year - the rule was the the % chance of it happening reduced with time from the first event, speeded up by subsequent ones). I do remember the Friedrich Der Grosse (a GE modern BB) blew up though. I kept the Grand fleet together as ships started slowing, and allowed the Ge to pull off. I knew I didn't have to 'win', I only had to 'not lose' - and I had bigger guns.

The campaign folded after that (for 2 reasons - finals, and the German Fleet had no BB fit for sea and it was never going to get close to the odds it had had in that battle again, whereas I had 4 BB at sea the next day - no, or minor damage- 8 in week, and IIRC 20 in a month). We worked out that the Ge ships (more robust) had taken 60% more damage in total than the RN, and had significantly less ship building capacity.

Sorry, this is a major OT detour!

Anyone know of a planned new BB (WW1 or 2, or even pre ww1) game?
I have a cunning plan, My Lord
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