2012年11月23日金曜日

ラバウルへの夜間空襲 昭和17年12月21日


ビルマ方面では夜間空襲が始まっているのに南西方面ではまだだったので、いつ始まるか、ホーランディアとラバウルのどちらに来襲するか気になっていました。昭和17年12月21日の夜はMoonlight 100%でしたが、ラバウルに四発爆撃機34機(B-17F Fortress 9、B-24D Liberator 25)による5波の夜間空襲がありました。二式水戦(A6M2-N Rufe)  7機とゼロ戦52型(A6M5b Zero) 23機が迎撃し、飛行場に対する命中弾はAirbase hits 1、Airbase supply hits 1、Runway hits 7と少なくて済みました。来襲したのが比較的少数機だったことと、CAPがいたために爆撃の精度が落ちたということなのでしょう。しかしこの夜間爆撃の妨害のためにゼロ戦52型は10機、二式水戦は6機が損失となり、また地上で二式大艇一機が破壊されてしまいました。これに対して連合軍の四発爆撃機の損失は0のようです。なんとも理不尽な仕様です。

12月18日にラエを失った後、連合軍の地上部隊がどちらに向かうのかが気になります。偵察機の報告にもとづき、東のフィンシュハーフェンに向かうアイコンと、西のWauに向かうアイコンがマップ上に表示されています。またラエ占領以降、Wauにいる連合軍部隊には西に向かうアイコンしかついていません。ラエの部隊にもWauの部隊にもにもNadzabに向かう動きを示すアイコンはないので、内陸のNadzabは無視するつもりなのかと思っていました。ところが今日のマップ上にはNadzabのヘクスに連合軍の1ユニットが表示されています。地上部隊の動きに関する偵察機の情報が100%確実とはいえないことは知っていましたが、意表外な出現に驚きました。

100%確実とはいえない偵察情報ですが、この部隊は1ユニットだけで、砲2門、車輌69台で歩兵分隊は0のようです。でもどこからやってきたのでしょう。Wauから来たのか?WauからNadzabへの移動は渡河を伴うのでNadzabのヘクスに到着した途端に強制的にShock Attackとなるはずです。ただしこのルールには例外があって、assault valueがゼロのユニットはShock Attackにならないのだそうです。別に、assault valueがゼロだと(shockでもdeliberateでも)attackできないルールがあるのでそうなっているようです。なので、Wauから来たのかもしれません。ラエから来た可能性もあるのかな?ラエからNadzabのヘクスにはsecondary roadがあります。ラエは2日前に占領されたばかりですが、8.3.1 OVERLAND MOVEMENTの表によると、Armorユニットの移動速度は12時間で最大30マイル、Art/AA/Engは最大で15マイルとなっています。疲労度などによってこの移動速度は低下するとなっていますが、2日間あれば到着できるのかもしれません。

こいつ、1ユニットで弱そうだから叩くべきでしょうか。そうしたい気もしますが、気になるのは 後続しているユニットの有無です。弱小な1ユニットだけで来るのが変で、ユニットごとの移動速度に差があって、たまたま1ユニットだけ先に到着してしまったと考える方が順当ですよね。だとすると、攻撃指示を出して日本側が次のターンに攻撃する相手は、この1ユニットだけではなく、複数の強力な連合軍部隊ということになりかねません。根拠地を保有している側には防御の方にメリットがありますから、なにも攻撃してその里を放棄することはないと判断し、このまま様子を見ることにしました。それに、このNadzabに数だけは16ユニット、一万名以上もいますが、どれもサプライ不足と敗北・撤退の繰り返しでAVが非常に低くなっているのです。このゲーム、餓島には5万トン以上のサプライが備蓄されていますが、ニューギニアは史実と同じく補給の不足に苦しんでいます。



AFTER ACTION REPORTS FOR Dec 21, 42
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Night Air attack on Rabaul , at 106,125 

Weather in hex: Light cloud

Raid detected at 27 NM, estimated altitude 11,000 feet.
Estimated time to target is 9 minutes

Japanese aircraft
      A6M2-N Rufe x 7
      A6M5b Zero x 23

Allied aircraft
      B-24D Liberator x 7

No Japanese losses

Allied aircraft losses
      B-24D Liberator: 2 damaged

Runway hits 1

Aircraft Attacking:
       4 x B-24D Liberator bombing from 7000 feet
               Airfield Attack: 10 x 500 lb GP Bomb
       3 x B-24D Liberator bombing from 7000 feet
               Airfield Attack: 10 x 500 lb GP Bomb

CAP engaged:
204 Ku S-1 with A6M5b Zero (3 airborne, 10 on standby, 10 scrambling)
      3 plane(s) intercepting now.
      Group patrol altitude is 10000 , scrambling fighters between 6000 and 9000.
      Time for all group planes to reach interception is 40 minutes
802 Ku S-1 with A6M2-N Rufe (2 airborne, 5 on standby, 0 scrambling)
      2 plane(s) intercepting now.
      Group patrol altitude is 9000 , scrambling fighters between 5000 and 11000.
      Time for all group planes to reach interception is 9 minutes



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Night Air attack on Rabaul , at 106,125 

Weather in hex: Light cloud

Raid detected at 37 NM, estimated altitude 11,000 feet.
Estimated time to target is 12 minutes

Japanese aircraft
      A6M2-N Rufe x 7
      A6M5b Zero x 23

Allied aircraft
      B-17F Fortress x 4
      B-24D Liberator x 6

Japanese aircraft losses
      A6M2-N Rufe: 1 destroyed
      A6M5b Zero: 1 destroyed

Allied aircraft losses
      B-17F Fortress: 1 damaged
      B-24D Liberator: 2 damaged

Runway hits 1

Aircraft Attacking:
       4 x B-17F Fortress bombing from 7000 feet
               Airfield Attack:  8 x 500 lb GP Bomb
       6 x B-24D Liberator bombing from 7000 feet
               Airfield Attack: 10 x 500 lb GP Bomb

CAP engaged:
204 Ku S-1 with A6M5b Zero (13 airborne, 0 on standby, 10 scrambling)
      13 plane(s) intercepting now.
      Group patrol altitude is 10000 , scrambling fighters between 5000 and 9000.
      Time for all group planes to reach interception is 47 minutes
802 Ku S-1 with A6M2-N Rufe (7 airborne, 0 on standby, 0 scrambling)
      7 plane(s) intercepting now.
      Group patrol altitude is 9000 
      Raid is overhead



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Night Air attack on Rabaul , at 106,125 

Weather in hex: Light cloud

Raid detected at 21 NM, estimated altitude 10,000 feet.
Estimated time to target is 7 minutes

Japanese aircraft
      A6M2-N Rufe x 1
      A6M5b Zero x 20

Allied aircraft
      B-24D Liberator x 6

Japanese aircraft losses
      A6M5b Zero: 1 destroyed

Allied aircraft losses
      B-24D Liberator: 3 damaged

Aircraft Attacking:
       6 x B-24D Liberator bombing from 7000 feet
               Airfield Attack: 10 x 500 lb GP Bomb

CAP engaged:
204 Ku S-1 with A6M5b Zero (10 airborne, 0 on standby, 10 scrambling)
      10 plane(s) intercepting now.
      Group patrol altitude is 10000 , scrambling fighters between 5000 and 11000.
      Time for all group planes to reach interception is 44 minutes
802 Ku S-1 with A6M2-N Rufe (1 airborne, 0 on standby, 0 scrambling)
      1 plane(s) intercepting now.
      Group patrol altitude is 9000 
      Raid is overhead



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Night Air attack on Rabaul , at 106,125 

Weather in hex: Light cloud

Raid detected at 30 NM, estimated altitude 9,000 feet.
Estimated time to target is 10 minutes

Japanese aircraft
      A6M5b Zero x 11

Allied aircraft
      B-24D Liberator x 6

Japanese aircraft losses
      A6M5b Zero: 1 destroyed
      H8K1 Emily: 1 destroyed on ground

No Allied losses

Runway hits 3

Aircraft Attacking:
       6 x B-24D Liberator bombing from 7000 feet
               Airfield Attack: 10 x 500 lb GP Bomb

CAP engaged:
204 Ku S-1 with A6M5b Zero (1 airborne, 0 on standby, 10 scrambling)
      1 plane(s) intercepting now.
      Group patrol altitude is 10000 , scrambling fighters between 2000 and 7000.
      Time for all group planes to reach interception is 33 minutes



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Night Air attack on Rabaul , at 106,125 

Weather in hex: Light cloud

Raid detected at 39 NM, estimated altitude 9,000 feet.
Estimated time to target is 13 minutes

Japanese aircraft
      A6M5b Zero x 10

Allied aircraft
      B-17F Fortress x 5

No Japanese losses

No Allied losses

Airbase hits 1
Airbase supply hits 1
Runway hits 1

Aircraft Attacking:
       5 x B-17F Fortress bombing from 7000 feet
               Airfield Attack:  8 x 500 lb GP Bomb

CAP engaged:
204 Ku S-1 with A6M5b Zero (0 airborne, 0 on standby, 10 scrambling)
      Group patrol altitude is 10000 , scrambling fighters between 5000 and 11000.
      Time for all group planes to reach interception is 28 minutes



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Sub attack near Donggala  at 67,97

Japanese Ships
      SC Ch 19
      SC Ch 27

Allied Ships
      SS Seadragon

Captain of SS Seadragon elects not to launch torpedoes at this target
Seadragon diving deep ....
SC Ch 27 fails to find sub, continues to search...
SC Ch 27 fails to find sub, continues to search...
SC Ch 27 fails to find sub, continues to search...
SC Ch 27 fails to find sub, continues to search...
SC Ch 27 attacking submerged sub ....
Escort abandons search for sub


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Sub attack near Utsonomiya  at 117,64

Japanese Ships
      DD Kiyonami

Allied Ships
      SS Flying Fish

SS Flying Fish launches 2 torpedoes at DD Kiyonami
Flying Fish diving deep ....
DD Kiyonami fails to find sub, continues to search...
DD Kiyonami fails to find sub, continues to search...
DD Kiyonami fails to find sub, continues to search...
DD Kiyonami fails to find sub, continues to search...
DD Kiyonami fails to find sub, continues to search...
Escort abandons search for sub


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Morning Air attack on 3rd Motor Brigade, at 70,127 (Wyndham)

Weather in hex: Overcast

Raid spotted at 20 NM, estimated altitude 14,000 feet.
Estimated time to target is 7 minutes

Japanese aircraft
      G3M2 Nell x 16

Japanese aircraft losses
      G3M2 Nell: 3 damaged

Allied ground losses:
      18 casualties reported
         Squads: 0 destroyed, 1 disabled
         Non Combat: 0 destroyed, 3 disabled
         Engineers: 0 destroyed, 0 disabled

Aircraft Attacking:
      16 x G3M2 Nell bombing from 9000 feet
               Ground Attack:  2 x 250 kg GP Bomb,  4 x 60 kg GP Bomb



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Morning Air attack on 3rd Motor Brigade, at 70,127 (Wyndham)

Weather in hex: Overcast

Raid spotted at 1 NM, estimated altitude 10,000 feet.
Estimated time to target is 0 minutes

Japanese aircraft
      Ki-49-IIa Helen x 20

No Japanese losses

Allied ground losses:
      47 casualties reported
         Squads: 0 destroyed, 1 disabled
         Non Combat: 0 destroyed, 8 disabled
         Engineers: 0 destroyed, 0 disabled

Aircraft Attacking:
      20 x Ki-49-IIa Helen bombing from 6000 feet
               Ground Attack:  4 x 250 kg GP Bomb



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Morning Air attack on Nanyang , at 85,45 

Weather in hex: Overcast

Raid spotted at 39 NM, estimated altitude 10,000 feet.
Estimated time to target is 12 minutes

Japanese aircraft
      Ki-21-IIa Sally x 47
      Ki-43-IIa Oscar x 25
      Ki-49-IIa Helen x 67

Japanese aircraft losses
      Ki-21-IIa Sally: 3 damaged
      Ki-49-IIa Helen: 7 damaged

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

Airbase hits 25
Airbase supply hits 30
Runway hits 59

Aircraft Attacking:
      20 x Ki-49-IIa Helen bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb
      21 x Ki-21-IIa Sally bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb
      20 x Ki-49-IIa Helen bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb
      27 x Ki-49-IIa Helen bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb
      23 x Ki-21-IIa Sally bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb
       3 x Ki-21-IIa Sally bombing from 6000 feet
               Airfield Attack:  4 x 250 kg GP Bomb



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Morning Air attack on 3rd Motor Brigade, at 70,127 (Wyndham)

Weather in hex: Overcast

Raid spotted at 4 NM, estimated altitude 8,000 feet.
Estimated time to target is 1 minutes

Japanese aircraft
      Ki-49-IIa Helen x 5

No Japanese losses

Aircraft Attacking:
       5 x Ki-49-IIa Helen bombing from 6000 feet
               Ground Attack:  4 x 250 kg GP Bomb



--------------------------------------------------------------------------------
Morning Air attack on Nanyang , at 85,45 

Weather in hex: Overcast

Raid spotted at 7 NM, estimated altitude 8,000 feet.
Estimated time to target is 2 minutes

Japanese aircraft
      Ki-21-IIa Sally x 7

No Japanese losses

Airbase hits 2
Runway hits 3

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



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Morning Air attack on 22nd JNAF AF Unit , at 98,125 (Nadzab)

Weather in hex: Severe storms

Raid detected at 36 NM, estimated altitude 9,000 feet.
Estimated time to target is 12 minutes

Allied aircraft
      Kittyhawk IA x 16
      Mitchell II x 5
      Bolingbroke IV x 12
      P-39D Airacobra x 25

No Allied losses

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 144th Infantry Regiment ...
Also attacking 22nd JNAF AF Unit  ...


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Morning Air attack on 15th JNAF AF Unit , at 98,125 (Nadzab)

Weather in hex: Severe storms

Raid detected at 30 NM, estimated altitude 12,000 feet.
Estimated time to target is 9 minutes

Allied aircraft
      Hudson III (LR) x 12

No Allied losses

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

Also attacking Kure 3rd SNLF ...
Also attacking 15th JNAF AF Unit  ...


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Morning Air attack on 26th Engineer Regiment, at 64,42 (Myitkyina)

Weather in hex: Light rain

Raid spotted at 30 NM, estimated altitude 11,000 feet.
Estimated time to target is 10 minutes

Allied aircraft
      Blenheim IV x 13
      Hurricane IIc Trop x 16

No Allied losses

Aircraft Attacking:
       8 x Blenheim IV bombing from 7000 feet
               Ground Attack:  4 x 250 lb GP Bomb
       5 x Blenheim IV bombing from 7000 feet
               Ground Attack:  4 x 250 lb GP Bomb

Also attacking 15th Ind. Engineer Regiment ...
Also attacking 26th Engineer Regiment ...
Also attacking 15th Ind. Engineer Regiment ...


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Morning Air attack on 26th Engineer Regiment, at 64,42 (Myitkyina)

Weather in hex: Light rain

Raid spotted at 15 NM, estimated altitude 12,000 feet.
Estimated time to target is 5 minutes

Allied aircraft
      Blenheim VD x 16

No Allied losses

Aircraft Attacking:
      16 x Blenheim VD bombing from 7000 feet
               Ground Attack:  4 x 250 lb GP Bomb



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Morning Air attack on 6th Field AF Construction Battalion, at 64,42 (Myitkyina)

Weather in hex: Light rain

Raid spotted at 10 NM, estimated altitude 11,000 feet.
Estimated time to target is 3 minutes

Allied aircraft
      Wellington Ic x 10

No Allied losses

Aircraft Attacking:
      10 x Wellington Ic bombing from 7000 feet
               Ground Attack:  8 x 500 lb GP Bomb



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Morning Air attack on 97th JAAF AF Bn , at 64,42 (Myitkyina)

Weather in hex: Light rain

Raid spotted at 19 NM, estimated altitude 9,000 feet.
Estimated time to target is 6 minutes

Allied aircraft
      Blenheim IV x 8

No Allied losses

Aircraft Attacking:
       8 x Blenheim IV bombing from 6000 feet
               Ground Attack:  4 x 250 lb GP Bomb



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Morning Air attack on 15th Ind. Engineer Regiment, at 64,42 (Myitkyina)

Weather in hex: Light rain

Raid spotted at 16 NM, estimated altitude 9,000 feet.
Estimated time to target is 5 minutes

Allied aircraft
      Hudson IIIa x 12

No Allied losses

Aircraft Attacking:
      12 x Hudson IIIa bombing from 7000 feet
               Ground Attack:  4 x 250 lb GP Bomb



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

Weather in hex: Moderate rain

Raid spotted at 18 NM, estimated altitude 10,000 feet.
Estimated time to target is 5 minutes

Allied aircraft
      A-29 Hudson x 3

No Allied losses

Aircraft Attacking:
       3 x A-29 Hudson bombing from 7000 feet
               Ground Attack:  4 x 250 lb GP Bomb



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ASW attack near Utsonomiya  at 117,64

Japanese Ships
      DD Fujinami
      DD Kiyonami

Allied Ships
      SS Flying Fish

SS Flying Fish is located by DD Fujinami
Flying Fish diving deep ....
DD Kiyonami fails to find sub, continues to search...
DD Kiyonami fails to find sub, continues to search...
DD Kiyonami fails to find sub, continues to search...
DD Kiyonami fails to find sub, continues to search...
DD Kiyonami fails to find sub, continues to search...
Escort abandons search for sub


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ASW attack near Donggala  at 67,97

Japanese Ships
      SC Ch 19
      SC Ch 27

Allied Ships
      SS Seadragon

SS Seadragon is located by SC Ch 19
SC Ch 27 fails to find sub, continues to search...
SC Ch 27 fails to find sub, continues to search...
SC Ch 27 fails to find sub, continues to search...
SC Ch 27 fails to find sub, continues to search...
SC Ch 27 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 61964 troops, 605 guns, 246 vehicles, Assault Value = 2183

Defending force 164513 troops, 644 guns, 0 vehicles, Assault Value = 4878

Allied ground losses:
      107 casualties reported
         Squads: 2 destroyed, 6 disabled
         Non Combat: 1 destroyed, 0 disabled
         Engineers: 0 destroyed, 0 disabled

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

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




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