12/22-12/23/42
NAVAL BATTLE OF KOEPANG
After an IJN SAG led by CA Kumano bombarded Koepang a week ago I decided to move Admiral Doorman's Dutch cruiser force up from Darwin to help protect Koepang. My multiple Catalina patrol groups couldnt seem to spot the IJN raiders coming or going and the Japanese attack was unmolested by US divebombers, torpedo bombers and level bombers based at Koepang.
On the night of 12/22-12/23/42 the IJN SAG came calling at Koepang again:
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Night Time Surface Combat, near Koepang at 68,116, Range 5,000 Yards
Japanese Ships
CA Suzuya, Shell hits 2
CA Kumano, Shell hits 5, on fire
CL Kiso, Shell hits 1
CL Tenryu, Shell hits 4, heavy fires, heavy damage
DD Asashio
DD Yamakaze, Shell hits 1
DD Umikaze, Shell hits 2, on fire
Allied Ships
CL Java, Shell hits 2, heavy fires
CL Sumatra, Shell hits 11, Torpedo hits 1, on fire, heavy damage
CL De Ruyter, Shell hits 9, heavy fires
CL Tromp, Shell hits 5, on fire
DD Banckert, Shell hits 6, heavy fires
DD Van Nes, Shell hits 3
DD Witte de With
DD Evertsen, Shell hits 3, on fire
DD Kortenaer, Shell hits 16, and is sunk
DD Piet Hein, Shell hits 8, and is sunk
Poor visibility due to Rain with 100% moonlight
Maximum visibility in Rain and 100% moonlight: 6,000 yards
Range closes to 7,000 yards...
Range closes to 5,000 yards...
CONTACT: Japanese lookouts spot Allied task force at 5,000 yards
CONTACT: Allied lookouts spot Japanese task force at 5,000 yards
Tanaka, Kikumatsu crosses the 'T'
CL De Ruyter engages CA Kumano at 5,000 yards
CA Kumano engages CL Sumatra at 5,000 yards
CA Suzuya engages CL Java at 5,000 yards
DD Piet Hein engages CA Kumano at 5,000 yards
CA Suzuya engages DD Kortenaer at 5,000 yards
DD Asashio engages DD Witte de With at 5,000 yards
DD Asashio engages DD Banckert at 5,000 yards
Range closes to 3,000 yards
CA Kumano engages CL Java at 3,000 yards
CL Sumatra engages CA Suzuya at 3,000 yards
CL Tenryu engages CL Sumatra at 3,000 yards
CL Java engages CA Kumano at 3,000 yards
DD Umikaze engages DD Piet Hein at 3,000 yards
DD Yamakaze engages DD Kortenaer at 3,000 yards
DD Asashio engages DD Evertsen at 3,000 yards
DD Yamakaze engages DD Witte de With at 3,000 yards
DD Umikaze engages DD Banckert at 3,000 yards
Range increases to 6,000 yards
DD Piet Hein collides with DD Kortenaer at 68 , 116
CA Kumano engages CL Tromp at 6,000 yards
CL De Ruyter engages CA Suzuya at 6,000 yards
CL Tenryu engages CL Sumatra at 6,000 yards
CL Java engages CL Tenryu at 6,000 yards
DD Piet Hein engages DD Asashio at 6,000 yards
DD Yamakaze engages DD Witte de With at 6,000 yards
DD Asashio engages DD Evertsen at 6,000 yards
DD Umikaze engages DD Witte de With at 6,000 yards
Range closes to 4,000 yards
CA Suzuya engages CL De Ruyter at 4,000 yards
CL Sumatra engages CL Tenryu at 4,000 yards
CL Kiso engages CL De Ruyter at 4,000 yards
DD Umikaze engages DD Banckert at 4,000 yards
DD Kortenaer engages DD Yamakaze at 4,000 yards
DD Asashio engages DD Piet Hein at 4,000 yards
DD Asashio engages DD Banckert at 4,000 yards
Range closes to 3,000 yards
CA Kumano engages CL Tromp at 3,000 yards
CA Suzuya engages CL Java at 3,000 yards
CL Kiso engages CL Sumatra at 3,000 yards
CL Kiso engages CL Java at 3,000 yards
DD Piet Hein engages DD Umikaze at 3,000 yards
DD Piet Hein engages DD Yamakaze at 3,000 yards
DD Piet Hein sunk by DD Asashio at 3,000 yards
DD Witte de With engages DD Asashio at 3,000 yards
DD Banckert engages DD Yamakaze at 3,000 yards
CL Sumatra engages CA Kumano at 3,000 yards
CL De Ruyter engages CL Tenryu at 3,000 yards
CL Tenryu engages CL De Ruyter at 3,000 yards
CL Java engages CL Kiso at 3,000 yards
DD Umikaze engages DD Evertsen at 3,000 yards
DD Yamakaze engages DD Evertsen at 3,000 yards
DD Asashio engages DD Witte de With at 3,000 yards
Range closes to 2,000 yards
CL Java engages CA Kumano at 2,000 yards
CL De Ruyter engages CA Suzuya at 2,000 yards
CL Tenryu engages CL Sumatra at 2,000 yards
CL Kiso engages CL Java at 2,000 yards
DD Yamakaze engages DD Kortenaer at 2,000 yards
DD Yamakaze engages DD Evertsen at 2,000 yards
DD Kortenaer engages DD Asashio at 2,000 yards
DD Asashio engages DD Van Nes at 2,000 yards
DD Banckert engages DD Asashio at 2,000 yards
CA Kumano engages CL De Ruyter at 2,000 yards
CL De Ruyter engages CL Tenryu at 2,000 yards
CL Java engages CL Tenryu at 2,000 yards
CL Kiso engages CL Java at 2,000 yards
DD Umikaze engages DD Kortenaer at 2,000 yards
DD Asashio engages DD Evertsen at 2,000 yards
DD Yamakaze engages DD Van Nes at 2,000 yards
DD Yamakaze engages DD Banckert at 2,000 yards
CL Tromp engages CA Suzuya at 2,000 yards
CL Tenryu engages CL De Ruyter at 2,000 yards
CL Tenryu engages CL Sumatra at 2,000 yards
CL Kiso engages CL De Ruyter at 2,000 yards
DD Kortenaer engages DD Umikaze at 2,000 yards
DD Yamakaze engages DD Evertsen at 2,000 yards
DD Asashio engages DD Kortenaer at 2,000 yards
DD Umikaze engages DD Van Nes at 2,000 yards
DD Asashio engages DD Banckert at 2,000 yards
Range increases to 4,000 yards
CA Kumano engages CL Tromp at 4,000 yards
CL Tenryu engages CL Tromp at 4,000 yards
CL Kiso engages CL Sumatra at 4,000 yards
DD Kortenaer engages DD Umikaze at 4,000 yards
DD Umikaze engages DD Evertsen at 4,000 yards
DD Asashio engages DD Kortenaer at 4,000 yards
DD Umikaze engages DD Van Nes at 4,000 yards
DD Banckert engages DD Asashio at 4,000 yards
Range closes to 3,000 yards
CA Suzuya engages CL Tromp at 3,000 yards
CL Java engages CA Suzuya at 3,000 yards
CL Tenryu engages CL Sumatra at 3,000 yards
CL Sumatra engages CL Kiso at 3,000 yards
DD Umikaze engages DD Witte de With at 3,000 yards
DD Evertsen engages DD Umikaze at 3,000 yards
DD Kortenaer engages DD Asashio at 3,000 yards
DD Umikaze engages DD Van Nes at 3,000 yards
DD Yamakaze engages DD Banckert at 3,000 yards
CA Kumano engages CL Tromp at 3,000 yards
CL De Ruyter engages CA Suzuya at 3,000 yards
CL De Ruyter engages CL Tenryu at 3,000 yards
CA Kumano engages CL Java at 3,000 yards
DD Asashio engages DD Kortenaer at 3,000 yards
DD Kortenaer engages DD Yamakaze at 3,000 yards
DD Asashio engages DD Kortenaer at 3,000 yards
DD Umikaze engages DD Banckert at 3,000 yards
CL De Ruyter engages CA Kumano at 3,000 yards
CL Tromp engages CA Suzuya at 3,000 yards
CL Sumatra engages CL Kiso at 3,000 yards
DD Kortenaer sunk by DD Umikaze at 3,000 yards
DD Evertsen engages DD Yamakaze at 3,000 yards
DD Witte de With engages DD Umikaze at 3,000 yards
DD Van Nes engages DD Asashio at 3,000 yards
DD Asashio engages DD Banckert at 3,000 yards
Range increases to 4,000 yards
CA Kumano engages CL De Ruyter at 4,000 yards
CL De Ruyter engages CA Kumano at 4,000 yards
CL Tenryu engages CL Java at 4,000 yards
CL De Ruyter engages CL Kiso at 4,000 yards
DD Banckert engages DD Umikaze at 4,000 yards
DD Witte de With engages DD Yamakaze at 4,000 yards
CA Kumano engages CL Tromp at 4,000 yards
CA Suzuya engages CL Tromp at 4,000 yards
CL Java engages CL Tenryu at 4,000 yards
CL De Ruyter engages CL Kiso at 4,000 yards
DD Evertsen engages DD Umikaze at 4,000 yards
DD Witte de With engages DD Asashio at 4,000 yards
DD Asashio engages DD Evertsen at 4,000 yards
DD Umikaze engages DD Banckert at 4,000 yards
Tanaka, Kikumatsu orders Japanese TF to disengage
CL Tenryu engages CL Tromp at 4,000 yards
CL Tromp engages CA Suzuya at 4,000 yards
CL Tenryu engages CL Tromp at 4,000 yards
CL Kiso engages CL De Ruyter at 4,000 yards
DD Yamakaze engages DD Evertsen at 4,000 yards
DD Yamakaze engages DD Witte de With at 4,000 yards
DD Asashio engages DD Van Nes at 4,000 yards
DD Yamakaze engages DD Banckert at 4,000 yards
Range increases to 10,000 yards
CL Tenryu engages CL Tromp at 10,000 yards
CL Tenryu engages CL De Ruyter at 10,000 yards
CL Tenryu engages CL Java at 10,000 yards
CL Java engages CL Kiso at 10,000 yards
DD Umikaze engages DD Van Nes at 10,000 yards
DD Evertsen engages DD Yamakaze at 10,000 yards
DD Yamakaze engages DD Banckert at 10,000 yards
Task forces break off...
The Dutch forces got the worst of it having only the smaller caliber guns of the CLs present. CL DeRuyter, DD Piet Hein and DD Kortenaer are all sunk.
However the IJN SAG is slowed down by the surface engagement and the US flyboys are able to get into the battle when the sun rises:
Morning Air attack on TF, near Larantoeka at 68,112
Weather in hex: Moderate rain
Raid spotted at 20 NM, estimated altitude 18,000 feet.
Estimated time to target is 9 minutes
Allied aircraft
TBF-1 Avenger x 18
Allied aircraft losses
TBF-1 Avenger: 14 damaged
Japanese Ships
CA Kumano, Torpedo hits 2, on fire
Aircraft Attacking:
18 x TBF-1 Avenger launching torpedoes at 200 feet
Naval Attack: 1 x 22in Mk 13 Torpedo
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Morning Air attack on TF, near Endeh at 66,114
Weather in hex: Heavy rain
Raid spotted at 40 NM, estimated altitude 6,000 feet.
Estimated time to target is 11 minutes
Allied aircraft
Spitfire Vc Trop x 6
B-25C Mitchell x 6
No Allied losses
Japanese Ships
DD Umikaze
Aircraft Attacking:
6 x B-25C Mitchell bombing from 5000 feet
Naval Attack: 6 x 500 lb SAP Bomb
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Morning Air attack on TF, near Larantoeka at 68,112
Weather in hex: Moderate rain
Raid spotted at 44 NM, estimated altitude 6,000 feet.
Estimated time to target is 14 minutes
Allied aircraft
Hudson III (LR) x 10
Allied aircraft losses
Hudson III (LR): 4 damaged
Japanese Ships
CL Kiso
CA Kumano, on fire
Aircraft Attacking:
10 x Hudson III (LR) bombing from 5000 feet
Naval Attack: 4 x 250 lb SAP Bomb
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Morning Air attack on TF, near Larantoeka at 68,112
Weather in hex: Moderate rain
Raid spotted at 17 NM, estimated altitude 6,000 feet.
Estimated time to target is 6 minutes
Allied aircraft
Kittyhawk IA x 6
A-24 Banshee x 14
P-40K Warhawk x 6
Allied aircraft losses
A-24 Banshee: 9 damaged
Japanese Ships
CA Kumano, on fire
CA Suzuya, Bomb hits 3, heavy fires, heavy damage
CL Kiso
Aircraft Attacking:
6 x A-24 Banshee releasing from 4000'
Naval Attack: 1 x 1000 lb SAP Bomb
8 x A-24 Banshee releasing from 2000'
Naval Attack: 1 x 1000 lb SAP Bomb
Heavy smoke from fires obscuring CA Suzuya
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Afternoon Air attack on TF, near Endeh at 66,114
Weather in hex: Severe storms
Raid spotted at 10 NM, estimated altitude 15,000 feet.
Estimated time to target is 3 minutes
Allied aircraft
P-38F Lightning x 25
P-40K Warhawk x 12
No Allied losses
Aircraft Attacking:
12 x P-40K Warhawk sweeping at 10000 feet
25 x P-38F Lightning sweeping at 10000 feet
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Afternoon Air attack on TF, near Endeh at 66,114
Weather in hex: Severe storms
Raid spotted at 30 NM, estimated altitude 18,000 feet.
Estimated time to target is 14 minutes
Allied aircraft
TBF-1 Avenger x 9
Allied aircraft losses
TBF-1 Avenger: 8 damaged
Japanese Ships
DD Umikaze
Aircraft Attacking:
9 x TBF-1 Avenger launching torpedoes at 200 feet
Naval Attack: 1 x 22in Mk 13 Torpedo
Intel reports CA Suzuya and CL Agano as sunk. It looks as if the damaged IJN ships are withdrawing NW towards Soerabaja...over a half dozen subs will be placed in position to intercept.
CL Sumatra is a floating hulk and is tied up pierside at Koepang along with CL Java, DD Banckert and DD Evertson effecting repairs. Looks like we will need to transfer some CAs from India and SOPAC to help protect the waters off Timor.
INDIA
IJN CVLs and CVEs conduct a raid on shipping off Diamond Harbor:
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Morning Air attack on TF, near Diamond Harbour at 52,38
Weather in hex: Severe storms
Raid detected at 40 NM, estimated altitude 12,000 feet.
Estimated time to target is 17 minutes
Japanese aircraft
A6M2 Zero x 8
B5N1 Kate x 6
Allied aircraft
Hurricane IIc Trop x 6
Japanese aircraft losses
B5N1 Kate: 1 damaged
Allied Ships
AMc Agra, Torpedo hits 1, and is sunk
AMc Calcutta, Torpedo hits 2, and is sunk
Aircraft Attacking:
6 x B5N1 Kate launching torpedoes at 200 feet
Naval Attack: 1 x 18in Type 91 Torpedo
CAP engaged:
No.5 Sqn RAF with Hurricane IIc Trop (4 airborne, 0 on standby, 0 scrambling)
(5 plane(s) diverted to support CAP in hex.)
4 plane(s) intercepting now.
0 plane(s) not yet engaged, 0 being recalled, 1 out of immediate contact.
Group patrol altitude is 35600
Time for all group planes to reach interception is 18 minutes
No.5 Sqn RAF Det with Hurricane IIc Trop (1 airborne, 0 on standby, 0 scrambling)
(1 plane(s) diverted to support CAP in hex.)
1 plane(s) intercepting now.
Group patrol altitude is 35600
Raid is overhead
Afternoon Air attack on TF, near Calcutta at 52,37
Weather in hex: Thunderstorms
Raid detected at 40 NM, estimated altitude 11,000 feet.
Estimated time to target is 17 minutes
Japanese aircraft
A6M2 Zero x 23
B5N1 Kate x 8
Allied aircraft
Hurricane IIc Trop x 5
No Japanese losses
Allied aircraft losses
Hurricane IIc Trop: 2 destroyed
Allied Ships
AMc Lahore, Torpedo hits 1, and is sunk
AMc Chandbali, Torpedo hits 2, and is sunk
Aircraft Attacking:
8 x B5N1 Kate launching torpedoes at 200 feet
Naval Attack: 1 x 18in Type 91 Torpedo
CAP engaged:
No.5 Sqn RAF with Hurricane IIc Trop (4 airborne, 0 on standby, 0 scrambling)
(4 plane(s) diverted to support CAP in hex.)
4 plane(s) intercepting now.
Group patrol altitude is 35600
Raid is overhead
No.5 Sqn RAF Det with Hurricane IIc Trop (0 airborne, 0 on standby, 0 scrambling)
(1 plane(s) diverted to support CAP in hex.)
0 plane(s) not yet engaged, 0 being recalled, 1 out of immediate contact.
Group patrol altitude is 35600
Time for all group planes to reach interception is 13 minutes
CHINA
OPERATION COBRA breaks through to relieve China as the armor combines with Chinese infantry to capture Lang Son on the Indochia/China border:
Ground combat at Lang Son (70,56)
Japanese Bombardment attack
Attacking force 7346 troops, 72 guns, 10 vehicles, Assault Value = 248
Defending force 22279 troops, 193 guns, 669 vehicles, Assault Value = 964
Japanese ground losses:
9 casualties reported
Squads: 0 destroyed, 1 disabled
Non Combat: 0 destroyed, 0 disabled
Engineers: 0 destroyed, 0 disabled
Assaulting units:
21st Ind.Mixed Division
4th Ind.Mixed Regiment
Defending units:
254th Armoured Brigade
31st Chinese Corps
64th Chinese/C Corps
7th Armoured Brigade
268th Motorised Brigade
64th Chinese/A Corps
52nd Chinese/C Corps
35th Group Army
Ground combat at Lang Son (70,56)
Allied Deliberate attack
Attacking force 21257 troops, 193 guns, 669 vehicles, Assault Value = 953
Defending force 7099 troops, 72 guns, 10 vehicles, Assault Value = 235
Allied adjusted assault: 751
Japanese adjusted defense: 63
Allied assault odds: 11 to 1 (fort level 2)
Allied forces CAPTURE Lang Son !!!
Combat modifiers
Defender: terrain(+), forts(+), preparation(-), experience(-)
supply(-)
Attacker:
Japanese ground losses:
1484 casualties reported
Squads: 57 destroyed, 27 disabled
Non Combat: 62 destroyed, 55 disabled
Engineers: 25 destroyed, 0 disabled
Guns lost 27 (27 destroyed, 0 disabled)
Vehicles lost 10 (10 destroyed, 0 disabled)
Units retreated 2
Allied ground losses:
150 casualties reported
Squads: 1 destroyed, 14 disabled
Non Combat: 1 destroyed, 12 disabled
Engineers: 0 destroyed, 0 disabled
Vehicles lost 2 (0 destroyed, 2 disabled)
Defeated Japanese Units Retreating!
Assaulting units:
64th Chinese/C Corps
254th Armoured Brigade
64th Chinese/A Corps
7th Armoured Brigade
31st Chinese Corps
268th Motorised Brigade
52nd Chinese/C Corps
35th Group Army
Defending units:
21st Ind.Mixed Division
4th Ind.Mixed Regiment
OPERATION COBRA has now opened a highway from Burma-Indochina-China....supplies and modern artillery from SE Asia can now move to reinforce China.
Here is a look at the 3300 AV IJA army NW of Hankow:
Ground combat at 84,49
Japanese Shock attack
Attacking force 90266 troops, 847 guns, 225 vehicles, Assault Value = 3338
Defending force 48 troops, 1 guns, 0 vehicles, Assault Value = 1
Japanese adjusted assault: 5129
Allied adjusted defense: 1
Japanese assault odds: 5129 to 1
Combat modifiers
Defender:
Attacker: shock(+)
Allied ground losses:
Guns lost 1 (1 destroyed, 0 disabled)
Assaulting units:
8th Ind.Mixed Brigade
13th Ind.Mixed Brigade
4th Ind.Mixed Brigade
37th Division
41st Division
RGC Capital Brigade
15th Tank Regiment
60th Infantry Brigade
116th Division
6th Ind.Mixed Brigade
40th Division
51st Infantry Brigade
3rd Division
6th RGC Division
1st Army
11th Army
6th Medium Field Artillery Regiment
Botanko Hvy Gun Regiment
20th Medium Field Artillery Regiment
Defending units:
89th Chinese/C Regiment
Next turn Chinese troops from the 5400 AV army at Sinyang and the 4800 AV army E of Ichang will begin to converge on the IJA stack outside of Hankow...we are hoping to be able to get a 2:1 attack on this stack in clear terrain.
