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The D4Y's

 
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The D4Y's - 1/30/2012 12:29:04 PM   
SuluSea


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It's a large image we'll see how it displays.



Here's the side by side for the models within the upgrade path. All of them look like great assests to the war effort. If you note the 8/44 availability date of the D4Y3 it comes with a 1 service rating and the longer legs . I'm guessing because of the change to the Ha-33 engine but not entirely certain.

All of these models are along an upgrade path so if you allocate enough R&D they should come well in advance of their availability date because of changes within an upgrade path to your reaserch facilities will be undamaged as currently modeled. The 800 Kg bomb that the D4Y4 carries is something you definately want in the arsenal.


Thoughts?

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RE: The D4Y's - 1/30/2012 12:33:10 PM   
LoBaron


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In general, I think cruise speed is a value not to be underestimated because of impact on coordination.

Since 230kts is the most common cruise speed of Japanese escort fighters, the D4Y4 looks like it is worth
researching.


Edit: ah yes, and clearly because of the bigger bang per buck...

< Message edited by LoBaron -- 1/30/2012 12:36:04 PM >


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RE: The D4Y's - 1/30/2012 12:43:15 PM   
LoBaron


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Just out of interest: the slower max speed is to emulate the drag from the 800kg bomb?
Or was the latest version really slower?

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S**t happens in war.

All hail the superior ones!

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RE: The D4Y's - 1/30/2012 12:56:20 PM   
SuluSea


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quote:

ORIGINAL: LoBaron

Just out of interest: the slower max speed is to emulate the drag from the 800kg bomb?
Or was the latest version really slower?


It's a guess but since both have the same engine I'd think the bomb size would be the culprit.




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RE: The D4Y's - 1/30/2012 1:19:37 PM   
SuluSea


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Here's a side by side of the D3A and D4Y.



I thought I'd put up a side by side of what should be the D3A's replacement.

Information that sticks out are speed, bomb load and service rating. IMO, you can't get the D4Y models soon enough. I'll live with the service rating of '3' for the first two models because carrier engagements usually end with atleast one side licking it's wounds and fleeing after a day.

My personal R&D plan has 4x size 30 factories researching the model but I've free'd up 8 factories by streamlining . I may add one more facility, the thought is I want to let one R&D factory to roll into production so I have the airframe available in numbers at the earliest possible date . Depending on how many D4Y1's I want around 5 or weeks out from coming online I'll start building up one factory to my production goal and let it convert. With R&D that close to production it will repair quickly.

Clear as mud right?



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RE: The D4Y's - 1/30/2012 1:46:17 PM   
Chickenboy


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quote:

ORIGINAL: SuluSea

Information that sticks out are speed, bomb load and service rating. IMO, you can't get the D4Y models soon enough. I'll live with the service rating of '3' for the first two models because carrier engagements usually end with atleast one side licking it's wounds and fleeing after a day.

My personal R&D plan has 4x size 30 factories researching the model but I've free'd up 8 factories by streamlining . I may add one more facility, the thought is I want to let one R&D factory to roll into production so I have the airframe available in numbers at the earliest possible date . Depending on how many D4Y1's I want around 5 or weeks out from coming online I'll start building up one factory to my production goal and let it convert. With R&D that close to production it will repair quickly.

Clear as mud right?



Hey, makes perfect sense to me, mate.

What's your production volume like on a monthly basis? I assume you expand beyond the default 30 production 'switchover' factory, no?

The 500kg bomb will do a real number on some BBs too, IIRC and is the clear winner here. If KB's DB pilot experten can be kept alive until these arrive, the Japanese carriers become significantly more of a threat. This represents a >2x effectiveness for a large portion of the carrier airwing (the DBs). The same cannot be said to be true for the B5-B6 upgrade, which represents incremental improvements, IMO. Same with upgrades to the A6 line IMO: incremental improvements rather than potential game-changers.

With that said, the D4Y series should be as much a research and production focus as any other IJNAF airframe, IMO.

Quick question for those in the know: will research roll from D4Y2-D4Y3? I am suspicious that, due to the engine change, that there may not be a painless research path. Can anyone else confirm that either there is undamaged research factory 'rollover' or that 'rollover' results in damaged research factories?

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RE: The D4Y's - 1/30/2012 1:51:12 PM   
CT Grognard

 

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Th D4Y4 Model 43 Judy was called the "Special Attack Bomber", it was a purpose-built kamikaze aircraft, high speed and 800kg bomb made it potent in that role.

They stripped out everything (including the rear-facing MG) and it had to take off with RATO rockets.

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RE: The D4Y's - 1/30/2012 2:02:02 PM   
CT Grognard

 

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Just to clarify on the three RATO boosters on the D4Y4 "Falling Comet single-seat suicide dive-bomber, it was apparently used either to assist take-off from small Japanese carriers, or otherwise it was used during the final attack dive to increase the terminal diving velocity.

You can imagine the sort of damage a 4.5-ton aircraft with a 800kg bomb diving from 10,000 feet into a carrier deck can do.

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RE: The D4Y's - 1/30/2012 2:09:24 PM   
CT Grognard

 

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Looking at the stats difference between the D4Y3 and D4Y4 above, I'm surprised the maneuverability of 16 has remained the same in the D4Y3 and the D4Y4.

They were almost identical - same powerplant etc. - but the D4Y4 was about 20% heavier than the D4Y3 on takeoff and as a consequence it had a much higher wing loading. The D4Y4 was essentially a very fast flying bomb.

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RE: The D4Y's - 1/30/2012 2:44:04 PM   
SuluSea


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quote:

ORIGINAL: Chickenboy


quote:

ORIGINAL: SuluSea

Information that sticks out are speed, bomb load and service rating. IMO, you can't get the D4Y models soon enough. I'll live with the service rating of '3' for the first two models because carrier engagements usually end with atleast one side licking it's wounds and fleeing after a day.

My personal R&D plan has 4x size 30 factories researching the model but I've free'd up 8 factories by streamlining . I may add one more facility, the thought is I want to let one R&D factory to roll into production so I have the airframe available in numbers at the earliest possible date . Depending on how many D4Y1's I want around 5 or weeks out from coming online I'll start building up one factory to my production goal and let it convert. With R&D that close to production it will repair quickly.

Clear as mud right?



Hey, makes perfect sense to me, mate.

What's your production volume like on a monthly basis? I assume you expand beyond the default 30 production 'switchover' factory, no?

The 500kg bomb will do a real number on some BBs too, IIRC and is the clear winner here. If KB's DB pilot experten can be kept alive until these arrive, the Japanese carriers become significantly more of a threat. This represents a >2x effectiveness for a large portion of the carrier airwing (the DBs). The same cannot be said to be true for the B5-B6 upgrade, which represents incremental improvements, IMO. Same with upgrades to the A6 line IMO: incremental improvements rather than potential game-changers.

With that said, the D4Y series should be as much a research and production focus as any other IJNAF airframe, IMO.

Quick question for those in the know: will research roll from D4Y2-D4Y3? I am suspicious that, due to the engine change, that there may not be a painless research path. Can anyone else confirm that either there is undamaged research factory 'rollover' or that 'rollover' results in damaged research factories?


Hi Andre , My plans have me going to a 60 production number on availability. I don't have a game going at the moment but against the AI , I threw some feelers out to folks I thought would be an ideal match but have come up empty. I would rather play the AI than a person that isn't a match so any information I provide about what I'm producing may not transalate in a PBEM. Learning about production and planning for this side entertains me to no end.

I just changed a 12 repaired (18) damaged D4Y2 plant to D4Y3 for testing and it stayed current, reciprocatiting will reset repaired facilities to zero. Try an older save and see what happens.

< Message edited by SuluSea -- 1/30/2012 2:46:42 PM >


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RE: The D4Y's - 1/30/2012 3:15:55 PM   
hkbhsi

 

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quote:

ORIGINAL: Chickenboy


Quick question for those in the know: will research roll from D4Y2-D4Y3? I am suspicious that, due to the engine change, that there may not be a painless research path. Can anyone else confirm that either there is undamaged research factory 'rollover' or that 'rollover' results in damaged research factories?



Yes, it does. You can upgrade with no damage.

< Message edited by hkbhsi -- 1/30/2012 3:16:29 PM >

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