2012年10月11日木曜日

伊豆大島で駆逐艦清波が触雷

メイクテーラに大きな空襲というエントリーlで触れたニューギニア島東部のワウですが、11月6日から合計3回の攻撃を受けましたがボロボロになりながらもなんとか防衛に成功しています。また同じ11月6日のメイクテーラ上空での激戦は連合軍にとっても損失が大きかったためでしょうか、ビルマ方面での連合軍の航空作戦はしばらくお休み中です。できれば、なべて世はこともなしと書きたいところですが、お相手の方も安心させてはくれません。

昭和17年11月11日、リプレイのしょっぱなに触雷音が響きました。触雷はアニメーションがなく効果音だけなので、どっちに被害が出たのかと思っていると、DD Kiyonamiが伊豆大島で触雷したと表示されました。伊豆大島というとちょっと遠い感じがしますが、横浜・横須賀・相模湾のヘクスのすぐ南に隣接していて、東京湾の入り口のヘクスです。こんなところに機雷を敷設されるというのは、日本海軍にとってはドーリットル空襲並のスキャンダルです。DD Kiyonamiはさいわい沈没はせず横須賀まで辿り着きました。しかしSys 22, Flt 56(43), Eng 38(35)とダメージが大きく、3週間ほどドック入りすることになりました。

ラングーンへの機雷敷設で2隻沈没1隻大破1隻炎上中というエントリーで、10月24日にラングーン港入口部に敷設された機雷で大きな被害が出たことを書いたことがあります。その後、10月30日にスマトラ島東岸のメダンのすぐ南のヘクスに機雷が敷設されているのを発見し、処理しました。こちらは幸いに被害がありませんでした。この二つの機雷敷設作戦を検討してみると、ラングーンはビルマの地上部隊へサプライを届けるコンボイが頻繁に入港し、またメダンは原油を積み込むタンカーが入港する港で、どちらも艦船の出入りの多いところを狙った犯行でした。ラングーンが10月24日でメダンが10月30日と時間差がありましたが、おそらく2隻は同じ時期にセイロン島のツリンコマリーあたりを出航していて、目的地への距離の差で機雷敷設時期がずれたのだろうと推測しました。

そう考えると、WitP AEではインド洋も太平洋も一人のプレイヤーが統一して指揮していますから、同じ頃にこの機雷敷設作戦を思い付いたお相手の方が、まだ他の潜水艦に別方面で同様の作戦を指示した可能性に思い当たります。他に機雷を敷設するのにふさわしい艦船の通行量の多い浅海ヘクスというと、第一はシンガポールからのコンボイが香港に出入りするあたり。そして、2番目にはポートモレスビーを攻略されて以来、トラックへ向かうコンボイが頻繁に行き交うこの東京湾の入り口が候補にあがります。トラック行き・帰りのコンボイは、潜水艦を避けるため、鳥島の浅海ヘクスと、青ヶ島から東京湾まで続く浅海ヘクスを選んで航海するよう指示してありますから、ここいらに機雷を敷設されると嫌だなと思いました。その対策として、まずは潜水艦を発見するために青ヶ島にASWスキル70のパイロットを揃えた零式水偵24機の飛行隊を配備し、発見した潜水艦を追い払うためにType 2 Depth Chargeを装備した初春・夕雲級の駆逐艦にASWパトロールを指示し、そして機雷を敷設されてもすぐに処理できるようAMcからなるLoacl Mine Sweeping TFに伊豆諸島の浅海ヘクスのパトロールを指示しておいたのでした。

伊豆大島はミッドウエイやアリューシャンの米軍潜水艦基地からはかなり遠いので、機雷の敷設時期がラングーンやメダンよりずっと遅くなったと考えると、相手の意図の推定としては正しかったし、対策としてもこれ以上の措置はなかなか難しいでしょう。人事は尽くしたと思うんですが、天命は機雷の敷設されたヘクスをAMcより先にASW TFの駆逐艦が通過させるというものでした。今日はアンボンへの輸送任務を終えて帰る途中のAMC Awata Maruがハルマヘラ島東岸でSS Sharkに雷撃されて魚雷が一本命中し、Sys 12, Flt 46(37)のダメージを受けた事件もあり、本当についてないなと感じた一日でした。



話は変わりますが、ニューヘブリデス諸島のLakatoroに空母の在泊が報告されています。実はこのLakatoroには昨日11月10日にも空母が存在しているという偵察報告があり、それを確認するために2日続けて偵察させたのです。偵察機はルンガに配置してある百式司偵で、パイロットはみんなReconスキル70以上、二日ともDetection Level 9/10ですから、ふつうなら信用すべきなんでしょうが、状況的になかなか信じ難いものがあります。ASW用のCVEが補給のために立ち寄ったとかでしょうかね。もし本当に空母がいるのだとしても手出しして確認できないのが残念なところです。



PCを変更して5日たちましたが、WitP AEは落ちることなく動いてくれています。お相手の方はしばしばクラッシュするそうで、私のところでもPBEM第一戦の頃はしょっちゅう突然落ちていましたが、いつからか落ちなくなりました。あとTrackerの表示までの秒数は130-140秒台を示しています。以前のPCだと300ターンを超えたこのごろは140秒台後半でしたから、Javaの実行は一割りくらい速くなっているようです。
AFTER ACTION REPORTS FOR Nov 11, 42
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TF 21 encounters mine field at Izu Oshima (113,62)

Japanese Ships
      DD Kiyonami, Mine hits 1,  heavy damage



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Sub attack near Foochow  at 86,61

Japanese Ships
      xAK Shinryu Maru
      xAK Yamahagi Maru
      PB Magan Maru

Allied Ships
      SS Flying Fish

SS Flying Fish launches 2 torpedoes at xAK Shinryu Maru
Flying Fish bottoming out ....
PB Magan Maru fails to find sub, continues to search...
PB Magan Maru fails to find sub, continues to search...
PB Magan Maru fails to find sub, continues to search...
PB Magan Maru fails to find sub, continues to search...
PB Magan Maru fails to find sub, continues to search...
Escort abandons search for sub


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Sub attack near Foochow  at 86,61

Japanese Ships
      xAK Kizan Maru
      xAK Heiei Maru
      xAK Momoyama Maru
      PB Ryusei Maru

Allied Ships
      SS Flying Fish

SS Flying Fish launches 2 torpedoes at xAK Kizan Maru
PB Ryusei Maru fails to find sub, continues to search...
PB Ryusei Maru fails to find sub, continues to search...
PB Ryusei Maru fails to find sub, continues to search...
PB Ryusei Maru fails to find sub, continues to search...
PB Ryusei Maru fails to find sub, continues to search...
Escort abandons search for sub


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Sub attack near Cam Ranh Bay  at 65,71

Japanese Ships
      DD Arashi

Allied Ships
      SS Skipjack

SS Skipjack launches 2 torpedoes at DD Arashi
Skipjack diving deep ....
DD Arashi fails to find sub, continues to search...
DD Arashi fails to find sub, continues to search...
DD Arashi fails to find sub, continues to search...
DD Arashi attacking submerged sub ....
DD Arashi attacking submerged sub ....
DD Arashi is out of ASW ammo
Escort abandons search for sub


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ASW attack near Gebe  at 80,104

Japanese Ships
      APD Yukaze
      APD Shimakaze

Allied Ships
      SS Shark

SS Shark launches 2 torpedoes at APD Yukaze
APD Shimakaze fails to find sub, continues to search...
APD Shimakaze fails to find sub, continues to search...
APD Shimakaze attacking submerged sub ....
APD Shimakaze fails to find sub, continues to search...
APD Shimakaze fails to find sub, continues to search...
Escort abandons search for sub


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Morning Air attack on Akyab , at 54,45 

Weather in hex: Heavy rain

Raid detected at 38 NM, estimated altitude 24,000 feet.
Estimated time to target is 10 minutes

Japanese aircraft
      Ki-44-IIa Tojo x 35

No Japanese losses

Aircraft Attacking:
      35 x Ki-44-IIa Tojo sweeping at 20000 feet



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Morning Air attack on Kweiyang , at 74,49 

Weather in hex: Moderate rain

Raid spotted at 31 NM, estimated altitude 7,000 feet.
Estimated time to target is 9 minutes

Japanese aircraft
      Ki-21-IIa Sally x 12
      Ki-43-Ic Oscar x 12
      Ki-49-IIa Helen x 34

Allied aircraft
      no flights

Japanese aircraft losses
      Ki-21-IIa Sally: 2 damaged
      Ki-49-IIa Helen: 3 damaged

Allied aircraft losses
      C-47 Skytrain: 1 damaged
      C-47 Skytrain: 1 destroyed on ground

Airbase hits 7
Airbase supply hits 2
Runway hits 17

Aircraft Attacking:
      17 x Ki-49-IIa Helen bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb
      17 x Ki-49-IIa Helen bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb
       5 x Ki-21-IIa Sally bombing from 6000 feet * 
               Airfield Attack:  2 x 250 kg GP Bomb
       4 x Ki-21-IIa Sally bombing from 6000 feet * 
               Airfield Attack:  2 x 250 kg GP Bomb
       3 x Ki-21-IIa Sally bombing from 6000 feet * 
               Airfield Attack:  2 x 250 kg GP Bomb



--------------------------------------------------------------------------------
Morning Air attack on Kweiyang , at 74,49 

Weather in hex: Moderate rain

Raid spotted at 40 NM, estimated altitude 9,000 feet.
Estimated time to target is 11 minutes

Japanese aircraft
      Ki-21-IIa Sally x 23
      Ki-43-IIa Oscar x 22
      Ki-49-IIa Helen x 17

Japanese aircraft losses
      Ki-21-IIa Sally: 1 damaged
      Ki-49-IIa Helen: 2 damaged

Airbase hits 4
Airbase supply hits 1
Runway hits 11

Aircraft Attacking:
      17 x Ki-21-IIa Sally bombing from 6000 feet * 
               Airfield Attack:  2 x 250 kg GP Bomb
      17 x Ki-49-IIa Helen bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb
       6 x Ki-21-IIa Sally bombing from 6000 feet * 
               Airfield Attack:  2 x 250 kg GP Bomb



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Morning Air attack on Liuchow , at 74,55 

Weather in hex: Light rain

Raid spotted at 29 NM, estimated altitude 11,000 feet.
Estimated time to target is 9 minutes

Japanese aircraft
      Ki-21-IIa Sally x 8
      Ki-43-Ic Oscar x 18
      Ki-49-IIa Helen x 17

Japanese aircraft losses
      Ki-21-IIa Sally: 2 damaged
      Ki-49-IIa Helen: 1 damaged

Allied ground losses:
      38 casualties reported
         Squads: 1 destroyed, 2 disabled
         Non Combat: 0 destroyed, 9 disabled
         Engineers: 0 destroyed, 0 disabled

Airbase hits 2
Airbase supply hits 7
Runway hits 10

Aircraft Attacking:
      17 x Ki-49-IIa Helen bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb
       8 x Ki-21-IIa Sally bombing from 6000 feet
               Ground Attack:  4 x 250 kg GP Bomb

Also attacking 25th Chinese Corps ...
Also attacking Liuchow  ...
Also attacking 14th Chinese Corps ...
Also attacking Liuchow  ...
Also attacking 79th Chinese Corps ...
Also attacking Liuchow  ...


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Morning Air attack on 9th Chinese Corps, at 74,55 (Liuchow)

Weather in hex: Light rain

Raid spotted at 30 NM, estimated altitude 8,000 feet.
Estimated time to target is 8 minutes

Japanese aircraft
      Ki-21-IIa Sally x 19

No Japanese losses

Allied ground losses:
      106 casualties reported
         Squads: 0 destroyed, 7 disabled
         Non Combat: 1 destroyed, 4 disabled
         Engineers: 0 destroyed, 0 disabled

Aircraft Attacking:
      19 x Ki-21-IIa Sally bombing from 6000 feet
               Ground Attack:  4 x 250 kg GP Bomb

Also attacking 11th Chinese Corps ...
Also attacking 9th Chinese Corps ...
Also attacking 11th Chinese Corps ...
Also attacking 9th Chinese Corps ...


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Morning Air attack on 9th Chinese Corps, at 74,55 (Liuchow)

Weather in hex: Light rain

Raid spotted at 31 NM, estimated altitude 9,000 feet.
Estimated time to target is 8 minutes

Japanese aircraft
      Ki-21-IIa Sally x 12

No Japanese losses

Allied ground losses:
      59 casualties reported
         Squads: 0 destroyed, 5 disabled
         Non Combat: 0 destroyed, 3 disabled
         Engineers: 0 destroyed, 0 disabled

Aircraft Attacking:
      12 x Ki-21-IIa Sally bombing from 6000 feet
               Ground Attack:  4 x 250 kg GP Bomb



--------------------------------------------------------------------------------
Morning Air attack on Changsha , at 82,52 

Weather in hex: Severe storms

Raid spotted at 40 NM, estimated altitude 10,000 feet.
Estimated time to target is 11 minutes

Japanese aircraft
      Ki-30 Ann x 14

Japanese aircraft losses
      Ki-30 Ann: 1 destroyed by flak

Aircraft Attacking:
      13 x Ki-30 Ann bombing from 6000 feet
               Airfield Attack:  1 x 250 kg GP Bomb



--------------------------------------------------------------------------------
Morning Air attack on Kweiyang , at 74,49 

Weather in hex: Moderate rain

Raid spotted at 23 NM, estimated altitude 10,000 feet.
Estimated time to target is 6 minutes

Japanese aircraft
      Ki-21-IIa Sally x 19

Japanese aircraft losses
      Ki-21-IIa Sally: 3 damaged

Airbase supply hits 1
Runway hits 4

Aircraft Attacking:
      19 x Ki-21-IIa Sally bombing from 6000 feet * 
               Airfield Attack:  2 x 250 kg GP Bomb



--------------------------------------------------------------------------------
Morning Air attack on Kweiyang , at 74,49 

Weather in hex: Moderate rain

Raid spotted at 43 NM, estimated altitude 9,000 feet.
Estimated time to target is 12 minutes

Japanese aircraft
      Ki-21-IIa Sally x 16

Japanese aircraft losses
      Ki-21-IIa Sally: 1 damaged

Allied ground losses:
      6 casualties reported
         Squads: 0 destroyed, 0 disabled
         Non Combat: 0 destroyed, 1 disabled
         Engineers: 0 destroyed, 0 disabled

Airbase supply hits 1
Runway hits 2

Aircraft Attacking:
      16 x Ki-21-IIa Sally bombing from 6000 feet * 
               Airfield Attack:  2 x 250 kg GP Bomb



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Morning Air attack on 144th Infantry Regiment, at 98,126 (Wau)

Weather in hex: Heavy rain

Raid spotted at 20 NM, estimated altitude 8,000 feet.
Estimated time to target is 6 minutes

Allied aircraft
      Mitchell II x 5
      Bolingbroke IV x 12

No Allied losses

Japanese ground losses:
      12 casualties reported
         Squads: 0 destroyed, 0 disabled
         Non Combat: 0 destroyed, 2 disabled
         Engineers: 0 destroyed, 0 disabled

Aircraft Attacking:
      12 x Bolingbroke IV bombing from 7000 feet
               Ground Attack:  4 x 250 lb GP Bomb
       5 x Mitchell II bombing from 7000 feet
               Ground Attack:  6 x 500 lb GP Bomb

Also attacking 47th Naval Guard Unit ...
Also attacking Sasebo 8th SNLF ...
Also attacking 144th Infantry Regiment ...
Also attacking 47th Naval Guard Unit ...
Also attacking 144th Infantry Regiment ...


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Morning Air attack on 47th Naval Guard Unit, at 98,126 (Wau)

Weather in hex: Heavy rain

Raid spotted at 20 NM, estimated altitude 11,000 feet.
Estimated time to target is 6 minutes

Allied aircraft
      Hudson III (LR) x 12
      Kittyhawk IA x 6

Allied aircraft losses
      Hudson III (LR): 1 damaged

Aircraft Attacking:
      12 x Hudson III (LR) bombing from 7000 feet
               Ground Attack:  4 x 250 lb GP Bomb

Also attacking Sasebo 3rd SNLF ...
Also attacking 47th Naval Guard Unit ...


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Morning Air attack on Maizuru 3rd SNLF, at 57,129 (Port Hedland)

Weather in hex: Overcast

Raid spotted at 15 NM, estimated altitude 9,000 feet.
Estimated time to target is 4 minutes

Allied aircraft
      Mitchell II x 9

No Allied losses

Japanese ground losses:
      21 casualties reported
         Squads: 0 destroyed, 1 disabled
         Non Combat: 0 destroyed, 2 disabled
         Engineers: 0 destroyed, 0 disabled

Aircraft Attacking:
       9 x Mitchell II bombing from 7000 feet * 
               Ground Attack:  3 x 500 lb GP Bomb

Also attacking 32nd JAAF AF Coy  ...
Also attacking Maizuru 3rd SNLF ...


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Morning Air attack on Ndeni , at 120,143 

Weather in hex: Moderate rain

Raid detected at 19 NM, estimated altitude 6,000 feet.
Estimated time to target is 5 minutes

Allied aircraft
      B-26B Marauder x 10

No Allied losses

Runway hits 3

Aircraft Attacking:
      10 x B-26B Marauder bombing from 3000 feet
               Airfield Attack:  6 x 500 lb GP Bomb



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Morning Air attack on Ndeni , at 120,143 

Weather in hex: Moderate rain

Raid detected at 36 NM, estimated altitude 5,000 feet.
Estimated time to target is 10 minutes

Allied aircraft
      B-26 Marauder x 10

No Allied losses

Airbase supply hits 1
Runway hits 5

Aircraft Attacking:
      10 x B-26 Marauder bombing from 3000 feet
               Airfield Attack:  6 x 500 lb GP Bomb



--------------------------------------------------------------------------------
Afternoon Air attack on Broome , at 62,127 

Weather in hex: Moderate rain

Raid spotted at 45 NM, estimated altitude 12,000 feet.
Estimated time to target is 15 minutes

Japanese aircraft
      G4M1 Betty x 10

No Japanese losses

Airbase hits 2
Airbase supply hits 1
Runway hits 2

Aircraft Attacking:
      10 x G4M1 Betty bombing from 9000 feet
               Airfield Attack:  2 x 250 kg GP Bomb,  4 x 60 kg GP Bomb



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Afternoon Air attack on Derby , at 64,127 

Weather in hex: Clear sky

Raid spotted at 6 NM, estimated altitude 10,000 feet.
Estimated time to target is 1 minutes

Japanese aircraft
      A6M2 Zero x 20
      Ki-49-IIa Helen x 10

Japanese aircraft losses
      Ki-49-IIa Helen: 2 damaged

Runway hits 4

Aircraft Attacking:
      10 x Ki-49-IIa Helen bombing from 6000 feet * 
               Airfield Attack:  2 x 250 kg GP Bomb



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Afternoon Air attack on Akyab , at 54,45 

Weather in hex: Heavy rain

Raid detected at 19 NM, estimated altitude 14,000 feet.
Estimated time to target is 5 minutes

Japanese aircraft
      Ki-49-IIa Helen x 15

Japanese aircraft losses
      Ki-49-IIa Helen: 1 damaged

Runway hits 1

Aircraft Attacking:
      15 x Ki-49-IIa Helen bombing from 11000 feet
               Airfield Attack:  4 x 250 kg GP Bomb



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Afternoon Air attack on Akyab , at 54,45 

Weather in hex: Heavy rain

Raid spotted at 19 NM, estimated altitude 15,000 feet.
Estimated time to target is 5 minutes

Japanese aircraft
      Ki-49-IIa Helen x 27

No Japanese losses

Runway hits 1

Aircraft Attacking:
      27 x Ki-49-IIa Helen bombing from 11000 feet
               Airfield Attack:  4 x 250 kg GP Bomb



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Sub attack near Kochi  at 105,61

Japanese Ships
      TB Manazuru

Allied Ships
      SS Pollack

SS Pollack launches 2 torpedoes at TB Manazuru
Pollack diving deep ....
TB Manazuru fails to find sub, continues to search...
TB Manazuru fails to find sub, continues to search...
TB Manazuru fails to find sub, continues to search...
TB Manazuru fails to find sub, continues to search...
TB Manazuru fails to find sub, continues to search...
Escort abandons search for sub


--------------------------------------------------------------------------------
Sub attack near Gebe  at 80,104

Japanese Ships
      AMC Awata Maru, Torpedo hits 1
      APD Shimakaze

Allied Ships
      SS Shark

SS Shark launches 4 torpedoes at AMC Awata Maru
Shark diving deep ....
APD Shimakaze fails to find sub, continues to search...
APD Shimakaze fails to find sub, continues to search...
APD Shimakaze fails to find sub, continues to search...
APD Shimakaze fails to find sub, continues to search...
APD Shimakaze fails to find sub, continues to search...
Escort abandons search for sub


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Ground combat at Nanyang (85,45)

Japanese Bombardment attack

Attacking force 61950 troops, 605 guns, 246 vehicles, Assault Value = 2183

Defending force 167112 troops, 660 guns, 0 vehicles, Assault Value = 5050

Allied ground losses:
      92 casualties reported
         Squads: 2 destroyed, 6 disabled
         Non Combat: 0 destroyed, 1 disabled
         Engineers: 0 destroyed, 0 disabled
      Guns lost 2 (1 destroyed, 1 disabled)

Assaulting units:
    35th Division
    70th Division
    36th Division
    110th Division
    32nd Division
    6th Medium Field Artillery Regiment
    12th Army
    3rd Ind.Hvy.Art. Battalion
    10th Ind. Mountain Gun Regiment
    Botanko Hvy Gun Regiment
    2nd Ind.Hvy.Art. Battalion
    20th Ind. Mtn Gun Battalion
    11th Field Artillery Regiment

Defending units:
    76th Chinese Corps
    61st Chinese Corps
    77th Chinese Corps
    41st Chinese Corps
    92nd Chinese Corps
    82nd Chinese Corps
    1st Chinese Corps
    16th Chinese Corps
    90th Chinese Corps
    3rd Chinese Corps
    33rd Chinese Corps
    36th Chinese Corps
    91st Chinese Corps
    57th Chinese Corps
    17th Chinese Corps
    23rd Chinese Corps
    19th Chinese Corps
    34th Chinese Corps
    47th Chinese Corps
    4th Chinese Cavalry Corps
    4th Group Army
    5th War Area 
    7th Group Army
    6th Group Army
    34th Group Army
    2nd War Area 
    22nd Group Army
    Red Chinese Army
    8th Group Army
    19th Chinese Base Force




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