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RE: 1st Class DDs - 3/18/2011 3:33:09 PM   
John 3rd


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That was my question too...

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RE: 1st Class DDs - 3/18/2011 3:36:29 PM   
Terminus


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I think he's asking what type of floatplane it comes with.

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RE: 1st Class DDs - 3/18/2011 3:37:39 PM   
John 3rd


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There was NO UPGRADE for the first 'upgrade' of Tone Kai! I changed that to reflect the addition of a few more 25MM and vastly reduced the upgrade time.


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RE: 1st Class DDs - 3/18/2011 3:43:06 PM   
ny59giants


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John - You might want to zip the new scenario files and post them here to allow others to take a look for possible errors before you get to putting out the newest version after your current corrections are made.

< Message edited by ny59giants -- 3/18/2011 3:44:06 PM >

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RE: 1st Class DDs - 3/18/2011 3:54:05 PM   
John 3rd


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Hi Michael. I plan to send the newest version--once we think we can go through it--to whomever would like to look. Certainly Stanislav, you, and BK for starters! Who else might like to peruse, comment, and check the files for RA?

Checking the Tone-Kai led me down through checking aircraft numbers and type for the newer vessels. I have the Agano's at 3, Tone's at 6, Tone-Kai at 8, and Kawachi's at 6. Split the Tone-Kai and Kawachi FP into two sections so players have the utility of chossing differing types of FP if they want.

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RE: 1st Class DDs - 3/18/2011 3:58:03 PM   
John 3rd


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Shim--E Class 5/42 Upgrade fixed.


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RE: 1st Class DDs - 3/18/2011 4:11:35 PM   
John 3rd


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Yugumo's are now settled. The Japanese start with two deployed and 12 building. The last one will be complete at Port Arthur at the end of 42.

The yard then shifts over to Akizuki's at that point.


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1st Class DDs - 3/18/2011 4:24:04 PM   
John 3rd


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Japanese 1st Class DD construction will look like this. Two Yards (and expanded Pt. Arthur and Maizuru) producing destroyers in a faster, more efficient manner:

1942:
Pt Arthur builds 12 Yugumo-Class
Maizuru builds 8 Akizuki-Class

20 1st Class DD constructed for the year.

1943
Pt Arthur builds 10 Akizuki-Class
Maizuru builds 12 Akizuki-Class
Shimakaze built as an experiment

23 1st Class DD constructed for the year.

1944-1945
Shipyards shift to constructing ONLY escort vessels. No 1st Class DDs. It will be all Matsu, E, PC, etc...

Thoughts?


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Editor - 3/18/2011 4:28:44 PM   
John 3rd


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I need space for 22 DDs. Is it OK to place anywhere in the ships slots? I find enough space in the 10735+ area. Just want to make sure ANY ship can go ANYWHERE...


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RE: Editor - 3/18/2011 4:39:39 PM   
FatR

 

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Complete cut of everything in favor of escorts and Matsu-class DDs looks plausible for 1945, but not for 1944. Don't forget about the planning and construction inertia. If you want to cut something from the queue, cut dream ships that arrive in 1945 (they are easily recognized by being appended separately from the normal queue at the bottom of the list) but were never built IRL, but leave ships that were historically bulit or their replacements.

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RE: Editor - 3/18/2011 4:52:10 PM   
John 3rd


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There will be a gap then. This probably makes some sense.

The only ships cut are the later Yugumos in favor of Akizuki's.

I proved a gap of an additional two months at Pt Arthur from when their last Yugumo is completed to when the first Akizuki's comes down the ways. Perhaps I should make that longer reflecting the Class change? Makes sense. Will change that from 2 to 6 months and that--in turn--will push the last DDs from late-43 to early-44.



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1st Class DDs - 3/18/2011 5:15:14 PM   
John 3rd


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This works well. The last Akizuki now becomes available in May 1944.

DDs Production:
1942--20
1943--19
1944--04

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BB Ammo - 3/18/2011 5:16:59 PM   
John 3rd


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Juan or Stanislav: Did we FIX the BB Ammo issue earlier? Just thought of that and want to make the new BBs (Yamato and American) can reload their main battery without fail. Remember lots of talk about it but did we do it?

If not then what needs done so this problem is fixed?


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RE: BB Ammo - 3/18/2011 5:20:48 PM   
John 3rd


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Barring a BB answer, I am done for the morning.

Only thing I have left on my checklist is going through the Japanese IJN LCUs and then I am done with my stuff. Stanislav it will then be yours for all those changes we decided on with escort vessels and any air work you want to do.

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RE: BB Ammo - 3/18/2011 6:20:25 PM   
FatR

 

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quote:

ORIGINAL: John 3rd

Juan or Stanislav: Did we FIX the BB Ammo issue earlier? Just thought of that and want to make the new BBs (Yamato and American) can reload their main battery without fail. Remember lots of talk about it but did we do it?

If not then what needs done so this problem is fixed?


The fix should be separating their forward batteries into two. Just check if it is done.

DD production - did you dropped Matsus from your count?

< Message edited by FatR -- 3/18/2011 6:21:58 PM >

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RE: BB Ammo - 3/18/2011 6:58:24 PM   
John 3rd


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I'll check the BBs as described.

All I worked on were the Yugumo's and Akizuki's. Since you have the vision with the 2nd Class DDs and other escorts, I plan on leaving them to you. Is that OK?


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RE: BB Ammo - 3/18/2011 7:18:20 PM   
FatR

 

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No problem. I didn't really plan on significant changes to 2nd class DDs... but if you presume that no bigger destroyers will be built for 1945, we should add a bunch of Tachibanas instead. I don't know if any acceleration or expansion of the program can be justified otherwise.

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Allied flak massacre - 3/18/2011 8:19:26 PM   
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So, with all those talks about Allied late-war flak being underpowered, I decided to test it for myself, as to decided, whether DaBabes flak upgrade can be of use to Scen 70. A rather modest, in terms of flak potential, TF, consisting of Australia, Boise, Honolulu and Amsterdam, plus 4 Fletcher HB DDs was used as a guinea pig. I used Ki-48-IIc in the divebomber test because it is the toughest Japanese divebomber in the game. Results in terms of damage delivered to Allied ships are significantly skewed compared to the optimal Japanese setup because Grace crews had low Torp skill and Helen crews low LowN skill... I decided to go ahead, on the assumption that EXP 65-level training might be too hard to maintain across the board late in the game anyway and is certainly not historical.

Losses during suicide ramming attempts are registered as operational losses... Unfortunately I did not remember about this and did not start recording them until the fourth test. I don't know if ramming attempts happen randomly or triggered by taking damage, so I don't know if they should be counted in the number of losses caused by flak or not.






Attachment (1)

< Message edited by FatR -- 3/18/2011 8:21:57 PM >

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RE: 1st Class DDs - 3/18/2011 10:18:05 PM   
bklooste

 

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quote:

ORIGINAL: FatR

Don't forget that pre-war extras Akizukis reflect earlier and faster adoption of the program, these should not directly interfere with Yugumos. Cuts here are done at the expense of light cruisers, not other DDs, as we discussed. Of course, those that do replace Yugumo-class destroyers in the queue should not be available before the latter are in stock.

About cruisers, don't forget, that Mogamis were severely undersized for their armament, which resulted in performance-impacting reconstructions after Tomozuru accident. And their Tone successors were about 55% larger than projects for Agano-kai cruisers which most closely mirror the current state of Aganos (looking at the armament). Significant difference here.

Bklooste, what do you mean about "proper air complement" for Tones?


Im taking the Takao and Tone class as an example , pre reconstruction the Mogamis were almost the same size as the Aganos.. In hind sight war time cruisers with a life expectancy of 2-3 years should be overload , Japanese destroyed faired at least as well as US ones in Taiphoons , which seems over engineered.


Agano 6652 RA one is larger ... as it carries more guns
Takao 9850 pre refit.
Mogami 8500 initial
Tone 11300

Note the addition of Torpedo bulges in the havy cruises easily adds 1500-2000 standard tons and improves stability but dont greatly increase the cost as they were filled with water or fuel.

Agree on the early Yugumos ,just that there would be delays with the early Akizukis which would delay their early entry. Not sure the 100mm can be sped up a lot it was Japans first large cartridge weapon , would start the war with 2 ships and instead focus on higher 100mm production through the war... If more emphasis is placed there may be more non BB upgrades that used this weapon .

Note Akizukis ARE light cruisers and the allies often mistook them as one - should they be rated as such in the game in terms of target selection ?

Also since they are a year earlier and light cruiser sized at almost 4K tons where does the early Aganos roll fit in ? As a mid war time destroyer leader ship it would be better to just widen as Akizuki hull and put in 6" * 6" guns like the historical Agano call a destroyer leader. The Akizuki un widened are a fraction smaller than the Tromp which caries armour and a float plane as well as 6 * 6:. As a prewar ship wouldnt a ship that can fight 1:1 with US cruisers be MUCH more useful ...

Ben

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RE: Allied flak massacre - 3/18/2011 10:23:07 PM   
bklooste

 

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quote:

Losses during suicide ramming attempts are registered as operational losses... Unfortunately I did not remember about this and did not start recording them until the fourth test. I don't know if ramming attempts happen randomly or triggered by taking damage, so I don't know if they should be counted in the number of losses caused by flak or not.


Wouldn't many of these be caused by significant flak also ? If your not going to get back what are you going to do ?

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RE: 1st Class DDs - 3/18/2011 10:37:46 PM   
bklooste

 

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quote:

ORIGINAL: John 3rd

:

1. Do you have any info as to what the Tone's might have had for aircraft?




She could carry 8 , 4 Alf/ 4 Dave later Jakes and Petes , but in the war they got low priority and rarely carried more than 5 there may also have been some fixable practical issues that they never bothered fixing as the air arm is not high priority. This may have cost them dearly at midway.. Note without a Hanger the planes should have a higher op rate.

4 Jakes or 8 ( for both Tones) would make a nice strike package for a raider and punish unprotected convoys.

Ben

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RE: 1st Class DDs - 3/19/2011 12:04:43 AM   
FatR

 

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quote:

ORIGINAL: bklooste

Im taking the Takao and Tone class as an example , pre reconstruction the Mogamis were almost the same size as the Aganos.. In hind sight war time cruisers with a life expectancy of 2-3 years should be overload , Japanese destroyed faired at least as well as US ones in Taiphoons , which seems over engineered.


Agano 6652 RA one is larger ... as it carries more guns
Takao 9850 pre refit.
Mogami 8500 initial
Tone 11300

I've talked about full displacement. 15 200 on Tone (13 450 on Mogamis post-refit), and 8500 on Aganos, planned to increase to 9500 on Agano-Kai, which added the fourth main gun turret and was supposed to have more powerful engines for extreme speed. That's where 55% came from.

quote:

ORIGINAL: bkloosteAlso since they are a year earlier and light cruiser sized at almost 4K tons where does the early Aganos roll fit in ? As a mid war time destroyer leader ship it would be better to just widen as Akizuki hull and put in 6" * 6" guns like the historical Agano call a destroyer leader. The Akizuki un widened are a fraction smaller than the Tromp which caries armour and a float plane as well as 6 * 6:. As a prewar ship wouldnt a ship that can fight 1:1 with US cruisers be MUCH more useful ...

I severely doubt the technical possibility of this idea. Yubari, the smallest Japanese cruiser (that still had about 1k tons of full displacement over Akizukis, past all modernizations - the same is true about Tromp class too) carried only 6x140mm (and reduced to 4x140mm to instal somewhat passable AAA armament). If you replace DP guns with normal naval guns, you need to instal medium-calibre AAA weapons on top of that to make your ship less than helpless against air attack, so the displacement will inevitably snowball, even if you decide not to install armor, but you wouldn't, because the ship will be too big and precious to keep it unprotected. I think Japanese already experimented enough with cramming too much stuff in too little displacement IRL.


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RE: 1st Class DDs - 3/19/2011 4:46:14 AM   
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Full displacement indicates stores , why should a ship which has a lot more water/fuel be a lot more expensive to build , this is why the brits which had to be international came up with standard dispalcement for the treaty.

1) They wouldn't be penalized
2) The extra fuel capacity doesnt add much to a ships cost

Yubari full load is 4075 vs 3700 for the Akuzuki. The observation of rating them as cruisers is based on the fact there were many allied attacks on a light cruiser Yubari which were actually on Akuzuki.

A Akuzuki widened to a cruiser style hull would probably be 4500 or so full load. And yes it couldn't carry more than 6 * 6" tubes. Also I don't think its relevant that tubes were removed for AA on a pre war design this was the case even for Japanese DD.

But my question here is on roll , an Agano built prewar isabout the same time the Akuzuki are laid down in RA ~39 . If its a raider/ destroyer leader , then a slightly widened Akuzuki with the historical Agano/Tromp armament's + float plane would be appropriate and much cheaper . Also the rest of the ships provide plenty of AA and note the Akuzuki NEED some heavy shells in their forces. The question on armour is valid but is also valid on the Akuzuki .. which were expensive destroyers.

12,090,000 JPY in 1939
17,820,400 JPY in 1941
19,194,000 JPY in 1942

Tone cost 31,270,000 JPY (1937)

The current earlier Agano in Reluctant Admiral makes no sense for the early ships , compared to existing designs , they cant tackle US cruisers , are more expensive as raiders and would be the same cost as a full 5*3 *6.1" using borrowed turrets. Remember for the last Takaos slip time was 3 months less than the historical Agano. I can understand the historical Aganos as these were built with War time constraints on steel etc .


quote:

ORIGINAL: FatR


quote:



I severely doubt the technical possibility of this idea. Yubari, the smallest Japanese cruiser (that still had about 1k tons of full displacement over Akizukis, past all modernizations - the same is true about Tromp class too) carried only 6x140mm (and reduced to 4x140mm to instal somewhat passable AAA armament). If you replace DP guns with normal naval guns, you need to instal medium-calibre AAA weapons on top of that to make your ship less than helpless against air attack, so the displacement will inevitably snowball, even if you decide not to install armor, but you wouldn't, because the ship will be too big and precious to keep it unprotected. I think Japanese already experimented enough with cramming too much stuff in too little displacement IRL.





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RE: 1st Class DDs - 3/19/2011 5:02:47 AM   
John 3rd


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I was gone for the balance of the day and just got home.

The new Agano's I think are pretty stout ships now. They pack 4x3 6" Guns, have solid AAA, and still carry a good complement of Long Lances. While not able to compete with the Cleveland's, they are a far more useful ship in RA.

Would love to raise Tone/Chikuma to 8 FP. BK--Is this info corraborated anywhere in your literature? If so, it would be quite useful. Think it is funny that I raised the Tone-Kai to 8 without this info!

Stanislav--As I see it, we went through and refined the DDs to a reasonable number (12 Yugumo and 30 Akizuki). In staying consistent with our production times the yards of Maizuru and Pt Arthur complete this production run in early-to-mid-1944. It is possible to add more 1st Class DDs, however, I thought we wanted to reflect the growing scarcity of resources by having the shipping industry shift over to the cheaper and simpler Matsu's and other Escort vessels for mass production.

Is that consistent with what you thought in this area?

When you get to modifying RA make sure you include these two yards within your production run.

ON BK's point regarding the size of Akizuki, I do not consider them a CL. They are large yes but they are consistent with the British Tribal Class, the DLs of France, and Selfridge Class of the USA.

< Message edited by John 3rd -- 3/19/2011 5:04:13 AM >


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RE: 1st Class DDs - 3/19/2011 5:23:32 AM   
bklooste

 

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Why would Japan build "balanced" ships pre war that cant match a cleveland ...Just saying the first 2 in the series especially with the Katoris gone are FAR more likely to be Tone /Ibuki class. It just goes against the psychology of their navy ...

I really dont have such detailed information on the Tone , what the practical issues were and whether they could have been overcome .. I do know they air compliment was neglected even early in the war with late upgrades , not getting planes etc . Funny how this little thing may have cost them 3CVs..

On the size it does't matter if they were a similar size but the US mistook them often for light cruisers this mistake would IMHO lead to them being targeted more.

Ben


quote:

ORIGINAL: John 3rd

I was gone for the balance of the day and just got home.

The new Agano's I think are pretty stout ships now. They pack 4x3 6" Guns, have solid AAA, and still carry a good complement of Long Lances. While not able to compete with the Cleveland's, they are a far more useful ship in RA.

Would love to raise Tone/Chikuma to 8 FP. BK--Is this info corraborated anywhere in your literature? If so, it would be quite useful. Think it is funny that I raised the Tone-Kai to 8 without this info!

Stanislav--As I see it, we went through and refined the DDs to a reasonable number (12 Yugumo and 30 Akizuki). In staying consistent with our production times the yards of Maizuru and Pt Arthur complete this production run in early-to-mid-1944. It is possible to add more 1st Class DDs, however, I thought we wanted to reflect the growing scarcity of resources by having the shipping industry shift over to the cheaper and simpler Matsu's and other Escort vessels for mass production.

Is that consistent with what you thought in this area?

When you get to modifying RA make sure you include these two yards within your production run.

ON BK's point regarding the size of Akizuki, I do not consider them a CL. They are large yes but they are consistent with the British Tribal Class, the DLs of France, and Selfridge Class of the USA.



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RE: 1st Class DDs - 3/19/2011 5:57:50 AM   
bklooste

 

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quote:

ORIGINAL: John 3rd

ON BK's point regarding the size of Akizuki, I do not consider them a CL. They are large yes but they are consistent with the British Tribal Class, the DLs of France, and Selfridge Class of the USA.

quote:

Selfridge Class


A LOT bigger than these DL , they were 50% bigger. The Yubari , Tromp and Tenryu are only 10% bigger ( full) .


Akizuki-class destroyer 2,743 t standard 3,759 t full load
Self ridge 1,850 t standard , 2,597 full
Tribal 1,850 t (standard), 2,520 tons full

Yubari , 4075 t ( full)
Tenryu 4,011t standard , 4200 t ( full)
Tromp 3, 450 standard , 4,000 full

They are probably 30% bigger than the fletcher class and dont carry armour so they are destroyers ,but not sure if the US air and subs would see it that way . I probably wouldnt do it as the allied player will go what are all the CLs in this mod but it is worth noting these are VERY big destroyers. Their role is similar to a CLAA , ie fleet escort for which they had huge bunkarage. A general purpose destroyer would have less.

Ben


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RE: 1st Class DDs - 3/19/2011 10:04:26 AM   
FatR

 

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quote:

ORIGINAL: bklooste
Yubari full load is 4075 vs 3700 for the Akuzuki.

Over 4400 actually, at least after installing AAA armament during the war. Also, take note, that Akizuki had much bigger fuel load.

quote:

ORIGINAL: bklooste
A Akuzuki widened to a cruiser style hull would probably be 4500 or so full load. And yes it couldn't carry more than 6 * 6" tubes. Also I don't think its relevant that tubes were removed for AA on a pre war design this was the case even for Japanese DD.

It is relevant. Not only Akizuki was an AAA design to begin with, Japanese never even seriously contemplated a cruiser without medium-calibre AAA armament after mid-20s, so any such project will go right to recycle bin.

quote:

ORIGINAL: bklooste
But my question here is on roll , an Agano built prewar isabout the same time the Akuzuki are laid down in RA ~39 . If its a raider/ destroyer leader , then a slightly widened Akuzuki with the historical Agano/Tromp armament's + float plane would be appropriate and much cheaper .

However it also will be a severely inadequate ship.

quote:

ORIGINAL: bklooste
Also the rest of the ships provide plenty of AA

The very reason for Akizuki projects was that they didn't.

In short, this proposition is practically insane. I rather see them researching an AP shell for 100/65 gun (although I'm not sure if this would have been really worthwhile, as main targets for DD guns were other DDs, but still probably more effective overall than much heavier 6x152mm hybrid with no AAA capability to speak of).

quote:

ORIGINAL: bklooste
The current earlier Agano in Reluctant Admiral makes no sense for the early ships , compared to existing designs , they cant tackle US cruisers ,

This is incorrect. Maybe it's would be case in RL, but in AE new Aganos sink Allied heavy cruisers just fine.

quote:

ORIGINAL: bklooste
are more expensive as raiders and would be the same cost as a full 5*3 *6.1" using borrowed turrets. Remember for the last Takaos slip time was 3 months less than the historical Agano. I can understand the historical Aganos as these were built with War time constraints on steel etc .

??? The class started building in the summer of 1940.

Anyway, the RL problem with Aganos was that they fell between tactical niches of destroyer leaders (too oversized for this role, so limited in numbers) and full-blown modern light cruisers (armament insufficient). The proposed RL evolution of the class took them in the second direction. And in RA Japanese just decide to go with it right away. Improved Aganos certainly are useful ships, as a cheaper alternative to CAs for night engagements and they aren't complete pushovers, like the original version, in day combat too (as several historians believe that Japanese should have left 155mm guns on their CAs due to their higher rate of fire making them more useful in night combat, I do believe, that this project would have been worthwhile in the real life as well). And I easily see how they could be (and probably how the project like this was justified) - an attempt to create a ship that can take on modern Allied cruisers with its superior torpedo armament and fast-firing guns in night combat, despite being much smaller and cheaper.


EDIT: Another huge problem with Akizuki-related side of your proposal is that it does not take into account the main point of divergence for destroyers being second half of 1942. Before that decisions are similar to RL, except with greater focus on AA ships at the expense of other areas. With our hindsight, I can easily imagine likely better alternatives with earlier points of divergence. 6x100/65 ship of Yugumo's size as the standard fleet DD, if it is late 30s, for example, or complete dedication to night combat capabilities. i.e. ROF at the expense of range, using 127/40 - and hopefully its evolution with better ballistics, by the war's beginning - as the main calibre for DDs, instead of developing 127/50. But in 1942 it is too late for any of that.


< Message edited by FatR -- 3/19/2011 11:21:12 AM >

(in reply to bklooste)
Post #: 897
RE: 1st Class DDs - 3/19/2011 10:17:35 AM   
FatR

 

Posts: 2522
Joined: 10/23/2009
From: St.Petersburg, Russia
Status: offline

quote:

ORIGINAL: bklooste


Yubari , 4075 t ( full)
Tenryu 4,011t standard , 4200 t ( full)
Tromp 3, 450 standard , 4,000 full


Well, no.
Yubari's full displacement reached 4448 tons after the main wartime upgrades. Which didn't even give her actually good AAA armament.
Tenryus displaced 4350-4621, depending on the source (discrepancies also might be explaned by increase in weight after upgrades).
Tromps displaced 4800+.

(in reply to bklooste)
Post #: 898
RE: 1st Class DDs - 3/19/2011 10:24:46 AM   
FatR

 

Posts: 2522
Joined: 10/23/2009
From: St.Petersburg, Russia
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quote:

ORIGINAL: John 3rd
Would love to raise Tone/Chikuma to 8 FP. BK--Is this info corraborated anywhere in your literature? If so, it would be quite useful. Think it is funny that I raised the Tone-Kai to 8 without this info!

The problem here is that the optimal number of planes for actual operations < the number of planes that can theoretically be operated from a ship. I would love to see Terminus or anyone else to comment on viability of this proposal...

quote:

ORIGINAL: John 3rd
Stanislav--As I see it, we went through and refined the DDs to a reasonable number (12 Yugumo and 30 Akizuki). In staying consistent with our production times the yards of Maizuru and Pt Arthur complete this production run in early-to-mid-1944. It is possible to add more 1st Class DDs, however, I thought we wanted to reflect the growing scarcity of resources by having the shipping industry shift over to the cheaper and simpler Matsu's and other Escort vessels for mass production.

Is that consistent with what you thought in this area?

Yes, actually. It is reasonable to assume that the dream ships will remains dreams. So should I add more Matsus and escorts instead?




(in reply to John 3rd)
Post #: 899
RE: 1st Class DDs - 3/19/2011 12:14:59 PM   
Terminus


Posts: 41459
Joined: 4/23/2005
From: Denmark
Status: offline
There's no problem putting 8 or 10 floatplanes on a cruiser or a battleship. The point is indeed how many you can realistically operate. I'd say no more than 4.

_____________________________

We are all dreams of the Giant Space Butterfly.

(in reply to John 3rd)
Post #: 900
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