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Rule Britannia, Britannia Rule the Waves
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Post subject: Operation Ten-go
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As most of you know, Operation Ten-go is considered the last sortie of the Imperial Japanese Navy. The goal was to draw attention from the US aircraft so that a massive kamikaze attack, utilizing kamikaze planes, kamikaze torpedo boats, kamikaze torpedoes and "frog-men" to destroy the USN fleet off the shore of Okinawa. If they survived they were to beach themselves on Okinawa and become unsinkable fortresses and fire upon the USN fleet, and army soldiers on the ground.
10 Ships set off from Tokuyama, Honshu on 6 April 1945. Battleship Yamato, cruiser Yahagi and destroyers Isokaze, Yukikaze, Hamakaze, Asashimo, Kasumi, Hatsushimo, Fuyutsuki, and Suzusuki. Of these, only Yukikaze, Fuyusuki, Suzusuki and Hatsushimo survived. The force was attacked over a course of 2 hours by 386 Avengers, Helldivers and Hellcats, all carrier-based.
Now, from 3 sets we have 4 of the actual ships (Yamato, Yahagi, Isokaze and Yukikaze). With those, how do you think this would work as a scenario?
The IJN force
Yamato
Yahagi
Isokaze
Yukikaze
Yukikaze (as Hamakaze)
Shigure x3 (as Asashimo, Kasumi and Hatsushimo). I don't know what if the Kagero's, The Shiratsuyu's or the Akisuki's are closer to these 3 ships, so really that bit is up for debate.
Akitsukix2( as Suzusuki and Fuyusuki)
Each aircraft base is what? 25 planes? So thats about 15 bases. So 5 Avengers, 5 Helldivers and 5 Hellcats for the USN. They can go out every turn, even though the carriers arent on the map. So, the goal of the game:
The USN must destroy all enemy ships
The IJN must cross the map. Yamato must survive.
That means the game will sometimes end in a draw, with Yamato dead but not all of the IJN ships destroyed. Therefore niether group techinically succeeded.
So, thats what I've come up with. Tell me your thoughts on it please, change what you like.
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 Sun Sep 20, 2009 8:48 pm |
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This sounds like an extremely one-sided scenario to me. A wise player would just put 4 avengers on the yamato. The Yamato with escort will abort less than one avenger on average and the remaining avengers will drop 12 torpedoes on the yamato on average (per turn). Result: Yamato sunk at the end of turn 3.
Furthermore, the helldivers are sufficient to deal with the 9 cruiser and destroyers. 2 of these ships will abort 1 of 4 helldivers per turn. 3 remaining helldivers will vital about 2 destroyers each turn. In addition, strafing hellcats will put some more dents in them.
Predicted mission outcome: IJN fleet sunk in turn 3. IJN fleet needs 5 turns to cross the board. This will be very rare.
Babs out! |
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| Sun Sep 20, 2009 8:54 pm |
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Rule Britannia, Britannia Rule the Waves
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Thats kind of the point. It is a one sided scenario, the idea is to see if it can be done.
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| Sun Sep 20, 2009 9:11 pm |
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AHF Bronze-Rated Trader
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| It's definately an interesting scenario and it may be much closer than you think...I may try it this week if I get a couple of hours |
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| Sun Sep 20, 2009 9:14 pm |
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| PrideoftheRoyalNavy wrote: | | Thats kind of the point. It is a one sided scenario, the idea is to see if it can be done. |
My prediction is that the destroyers don't stand a chance. I realized that you even if you fail to vital them, you can come back next turn as crippled ships go at half speed. Thus the game will revolge about the Yamato surviving for 5 turns. In 5 turns about 60 torpedoes will be dropped. The Was calculater projects a 5% chance of success for Operation Ten-Go.
Babs out! |
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| Sun Sep 20, 2009 9:24 pm |
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Rule Britannia, Britannia Rule the Waves
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| babs wrote: | | PrideoftheRoyalNavy wrote: | | Thats kind of the point. It is a one sided scenario, the idea is to see if it can be done. |
My prediction is that the destroyers don't stand a chance. I realized that you even if you fail to vital them, you can come back next turn as crippled ships go at half speed. Thus the game will revolge about the Yamato surviving for 5 turns. In 5 turns about 60 torpedoes will be dropped. The Was calculater projects a 5% chance of success for Operation Ten-Go.
Babs out! |
Thats better than the odds they actually had.
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| Sun Sep 20, 2009 9:25 pm |
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Forum Administrator
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I'm moving this to the Scenarios section.
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| Sun Sep 20, 2009 9:31 pm |
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Muahahaha!
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Don't forget to use Shigure for smoke! 
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| Mon Sep 21, 2009 9:47 am |
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This sounds tough to me too. There is only one objecive for the USN: destroy Yamato. I understand it is a historical representation and I think you did well here, but just like the Convoy Scenario, too focused on one objective, even though it is a much tougher objective to take! I think that if the IJN can get some fraction of ships across the board they should get a minor victory. As of right now there is no reason for the other ships here except replace Yamato's AA escort as she travels across the board. With Avengers, Helldivers, and IJN AA, there is no reason to attack any of the other ships except just because they can.
I wonder what would have happened if the roles were reversed. What if the USN has to escort an Iowa across the board and only one cruiser and 8 destroyers were to escort her against 5 Jills, 5 Judys, and 5 Zekes? Game-wise the American AA would be effective, but effective enough I don't know. In real life????
wilt57
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| Tue Sep 22, 2009 2:37 am |
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Rule Britannia, Britannia Rule the Waves
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I was thinking, to make it a bit easier for the IJN but still historically accurate:
The USN must first destory half the enemy fleet before engaging Yamato. Yahagi must be destroyed before Yamato can be engaged.
This buys the IJN 1-2 turns. Also, as it took 2 hours for Yamato to sink, but only 12 minutes for Yahagi to be struck dead in the water, it remains accurate.
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| Tue Sep 22, 2009 2:47 am |
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I think this scenario would work as part of an Okinawa campaign. Perhaps a series of scenarios, where the US invades Okinawa, engages in land battles, defends against Kamikazes and then the Ten-Go scenario. Kind of like the Guadalcanal series of scenarios.
I like the concept of doing this scenario, and another option might be to expand it a little to involve more strategy- at the expense of historical accuracy though. I've been thinking lately that some historic "what-if" scenarios might make for better and more fun gameplay than a scenario that accurately depicts what really happened. Because it does boil down to alternate history, even when you re-enact a battle. Unless your re-enactment has the same result as really happened.
For example, a scenario where the Bismarck and Prinz Eugen broke out into the Atlantic, as was their intended mission, and attacked convoys.
For the Ten-Go scenario, what would have happened if the Yamato had made it to Okinawa and beached itself, firing on US troops? Sounds like a sea/land combo there... |
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| Wed Sep 23, 2009 4:44 pm |
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Rule Britannia, Britannia Rule the Waves
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| herky80 wrote: | I think this scenario would work as part of an Okinawa campaign. Perhaps a series of scenarios, where the US invades Okinawa, engages in land battles, defends against Kamikazes and then the Ten-Go scenario. Kind of like the Guadalcanal series of scenarios.
I like the concept of doing this scenario, and another option might be to expand it a little to involve more strategy- at the expense of historical accuracy though. I've been thinking lately that some historic "what-if" scenarios might make for better and more fun gameplay than a scenario that accurately depicts what really happened. Because it does boil down to alternate history, even when you re-enact a battle. Unless your re-enactment has the same result as really happened.
For example, a scenario where the Bismarck and Prinz Eugen broke out into the Atlantic, as was their intended mission, and attacked convoys.
For the Ten-Go scenario, what would have happened if the Yamato had made it to Okinawa and beached itself, firing on US troops? Sounds like a sea/land combo there... |
I love it.
I figured I'd start with happened and then go from there, so the more "what-if" suggestions the better.
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| Thu Sep 24, 2009 1:51 am |
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AHF Bronze-Rated Trader
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Well! That was a waste of time 
The Yamato aborted one Avenger in turn 1, the other 3 Avengers fired 12 torps and never hit it 
Second round, Yamato aborted an Avenger again, but this time they hit Yamato 5 times...needless to say half ways across was as far as she got...all of the ships were gone by turn 3 and none made it to the other side of the board...Yahagi would have but I kept it with yamato for air cover.....
Now in my stupidity, I did forget the Smoke...
I'm not sure what any of this means |
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| Thu Sep 24, 2009 2:30 pm |
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I think japan might stand a chance if the planes are allow to come only ever 2nd turn or so (land based - as no carriers are here...  )
the shigures should pop smome and if teh avengers come the Yamato /yahagi should stay within the smoke - if no planes are available they should move (and again drop smoke - smoke lasts into next turn)
this way you might make it...
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| Thu Sep 24, 2009 2:48 pm |
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AHF Bronze-Rated Trader
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| I think you could basically leapfrog into smoke and make it but I dont have the necessary brain power to try it at the moment |
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| Thu Sep 24, 2009 2:52 pm |
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| I only have one Avenger... |
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| Sat Oct 03, 2009 11:56 pm |
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Rule Britannia, Britannia Rule the Waves
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| The Tirpitz wrote: | | I only have one Avenger... |
Do you have any devastators? You could always just give them Avenger stats
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| Fri Oct 09, 2009 10:38 pm |
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Caesar Americanus II Munchkin Wrangler
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I've actually thought about some mixed historical/alternate campaigns where the outcome branches...
Using Denmark Strait as an example:
Game 1
->If Bismarck is destroyed: end campaign.
->If Bismarck is damaged: Game 2A, close-range search.
->Bismarck unscathed: Game 2B, open-ocean hunt/convoy-raiding.
Games 2A and 2B would be on a larger, double-blind strategic map until Bismarck is located or closing on a target, then progress to a standard-size "tactical battle".
Ten-Go, only way I see to play it is like Taffy 3 pure-historical: each player does a game with each fleet, and the highest score as IJN wins.
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| Fri Oct 09, 2009 11:02 pm |
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| I wrote up this scenario way back when set 1 came out. IIRC, it was a standard map with a 12 turn limit, and the US planes could only attack every other turn since the carriers were so far away. Basically the Japanese scored points by shooting down aircraft (lol) and exiting ships from the other side of the map. During move phase, instead of moving Japanese ships could execute an evasive maneuver (-1 to AA, -1 to enemy attack die, -1 torpedo). It was a fun scenario and well balanced, but I don't know how it would play out with the new US planes. |
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| Tue Oct 20, 2009 3:47 pm |
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| PrideoftheRoyalNavy wrote: | | The Tirpitz wrote: | | I only have one Avenger... |
Do you have any devastators? You could always just give them Avenger stats |
I have 1 Devastator. 0 Helldivers. 1 Hellcat.
I have Yamato, Isokaze, Yukikaze, but that's it for the IJN listed here.
I have a very limited fleet. |
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| Sun Nov 01, 2009 3:55 am |
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