AFTER ACTION REPORTS FOR Apr 18, 42 -------------------------------------------------------------------------------- Sub attack near Moala at 134,163 Japanese Ships SS I-28, hits 1 Allied Ships DD Benham DD L'Indomptable SS I-28 launches 6 torpedoes at DD Benham DD L'Indomptable attacking submerged sub .... SS I-28 eludes DD L'Indomptable by diving deep DD L'Indomptable loses contact with SS I-28 SS I-28 eludes DD L'Indomptable by diving deep SS I-28 eludes ASW attack from DD L'Indomptable DD L'Indomptable attacking submerged sub .... DD L'Indomptable loses contact with SS I-28 DD L'Indomptable cannot establish contact with SS I-28 DD L'Indomptable cannot reach attack position over SS I-28 SS I-28 eludes DD L'Indomptable by diving deep DD L'Indomptable fails to find sub, continues to search... DD L'Indomptable fails to find sub, continues to search... DD L'Indomptable fails to find sub, continues to search... Escort abandons search for sub -------------------------------------------------------------------------------- Morning Air attack on Palembang , at 48,91 Weather in hex: Clear sky Raid spotted at 25 NM, estimated altitude 32,810 feet. Estimated time to target is 8 minutes Japanese aircraft A6M2 Zero x 27 No Japanese losses Aircraft Attacking: 27 x A6M2 Zero sweeping at 32810 feet -------------------------------------------------------------------------------- Morning Air attack on Chungking , at 76,45 Weather in hex: Moderate rain Raid spotted at 28 NM, estimated altitude 25,000 feet. Estimated time to target is 9 minutes Japanese aircraft A6M2 Zero x 22 No Japanese losses Aircraft Attacking: 22 x A6M2 Zero sweeping at 20000 feet -------------------------------------------------------------------------------- Morning Air attack on Palembang , at 48,91 Weather in hex: Clear sky Raid spotted at 17 NM, estimated altitude 34,810 feet. Estimated time to target is 5 minutes Japanese aircraft A6M2 Zero x 18 No Japanese losses Aircraft Attacking: 18 x A6M2 Zero sweeping at 32810 feet -------------------------------------------------------------------------------- Morning Air attack on Palembang , at 48,91 Weather in hex: Clear sky Raid detected at 32 NM, estimated altitude 33,810 feet. Estimated time to target is 10 minutes Japanese aircraft A6M2 Zero x 36 No Japanese losses Aircraft Attacking: 36 x A6M2 Zero sweeping at 32810 feet -------------------------------------------------------------------------------- Morning Air attack on Palembang , at 48,91 Weather in hex: Clear sky Raid detected at 22 NM, estimated altitude 36,810 feet. Estimated time to target is 7 minutes Japanese aircraft A6M2 Zero x 34 No Japanese losses Aircraft Attacking: 34 x A6M2 Zero sweeping at 32810 feet -------------------------------------------------------------------------------- Morning Air attack on Manado , at 75,99 Weather in hex: Heavy rain Raid detected at 27 NM, estimated altitude 24,000 feet. Estimated time to target is 8 minutes Japanese aircraft A6M2 Zero x 13 No Japanese losses Aircraft Attacking: 13 x A6M2 Zero sweeping at 20000 feet -------------------------------------------------------------------------------- Morning Air attack on Manado , at 75,99 Weather in hex: Heavy rain Raid detected at 42 NM, estimated altitude 23,000 feet. Estimated time to target is 13 minutes Japanese aircraft A6M2 Zero x 13 No Japanese losses Aircraft Attacking: 13 x A6M2 Zero sweeping at 20000 feet -------------------------------------------------------------------------------- Morning Air attack on Ambon , at 76,109 Weather in hex: Light cloud Raid spotted at 23 NM, estimated altitude 22,000 feet. Estimated time to target is 7 minutes Japanese aircraft A6M2 Zero x 12 No Japanese losses Aircraft Attacking: 12 x A6M2 Zero sweeping at 20000 feet -------------------------------------------------------------------------------- Morning Air attack on Palembang , at 48,91 Weather in hex: Clear sky Raid detected at 27 NM, estimated altitude 34,810 feet. Estimated time to target is 8 minutes Japanese aircraft A6M2 Zero x 36 No Japanese losses Aircraft Attacking: 36 x A6M2 Zero sweeping at 32810 feet -------------------------------------------------------------------------------- Morning Air attack on Ambon , at 76,109 Weather in hex: Light cloud Raid spotted at 43 NM, estimated altitude 24,000 feet. Estimated time to target is 14 minutes Japanese aircraft A6M2 Zero x 18 No Japanese losses Aircraft Attacking: 18 x A6M2 Zero sweeping at 20000 feet -------------------------------------------------------------------------------- Morning Air attack on Palembang , at 48,91 Weather in hex: Clear sky Raid detected at 23 NM, estimated altitude 35,810 feet. Estimated time to target is 7 minutes Japanese aircraft A6M2 Zero x 18 No Japanese losses Aircraft Attacking: 18 x A6M2 Zero sweeping at 32810 feet -------------------------------------------------------------------------------- Morning Air attack on Manila Bay Defenses , at 78,77 (Bataan) Weather in hex: Light cloud Raid detected at 110 NM, estimated altitude 13,000 feet. Estimated time to target is 38 minutes Japanese aircraft G4M1 Betty x 36 Japanese aircraft losses G4M1 Betty: 2 damaged Aircraft Attacking: 32 x G4M1 Betty bombing from 10000 feet Ground Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb 4 x G4M1 Betty bombing from 10000 feet Ground Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb Also attacking Asiatic Fleet ... Also attacking Manila Bay Defenses ... -------------------------------------------------------------------------------- Morning Air attack on Manila Bay Defenses , at 78,77 (Bataan) Weather in hex: Light cloud Raid detected at 109 NM, estimated altitude 10,000 feet. Estimated time to target is 38 minutes Japanese aircraft G4M1 Betty x 17 Japanese aircraft losses G4M1 Betty: 1 damaged Aircraft Attacking: 17 x G4M1 Betty bombing from 10000 feet Ground Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb -------------------------------------------------------------------------------- Morning Air attack on Asiatic Fleet , at 78,77 (Bataan) Weather in hex: Light cloud Raid detected at 111 NM, estimated altitude 13,000 feet. Estimated time to target is 44 minutes Japanese aircraft G3M2 Nell x 27 Japanese aircraft losses G3M2 Nell: 2 damaged Aircraft Attacking: 27 x G3M2 Nell bombing from 10000 feet Ground Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb Also attacking 4th Marine Regiment ... Also attacking Asiatic Fleet ... Also attacking 4th Marine Regiment ... Also attacking Asiatic Fleet ... -------------------------------------------------------------------------------- Morning Air attack on Dutch Harbor , at 171,50 Weather in hex: Severe storms Raid detected at 78 NM, estimated altitude 9,000 feet. Estimated time to target is 27 minutes Japanese aircraft A6M2 Zero x 39 G4M1 Betty x 26 Japanese aircraft losses G4M1 Betty: 6 damaged Aircraft Attacking: 26 x G4M1 Betty bombing from 6000 feet Port Attack: 2 x 250 kg SAP Bomb, 4 x 60 kg GP Bomb -------------------------------------------------------------------------------- Morning Air attack on Manado , at 75,99 Weather in hex: Heavy rain Raid detected at 25 NM, estimated altitude 25,000 feet. Estimated time to target is 8 minutes Japanese aircraft A6M2 Zero x 4 No Japanese losses Aircraft Attacking: 2 x A6M2 Zero sweeping at 20000 feet 2 x A6M2 Zero sweeping at 20000 feet -------------------------------------------------------------------------------- Morning Air attack on 81st Chinese Corps, at 88,37 (Yenan) Weather in hex: Light cloud Raid spotted at 7 NM, estimated altitude 10,000 feet. Estimated time to target is 2 minutes Japanese aircraft Ki-21-Ic Sally x 42 Ki-30 Ann x 31 Ki-43-Ib Oscar x 27 Japanese aircraft losses Ki-21-Ic Sally: 3 damaged Ki-30 Ann: 1 damaged Allied ground losses: 179 casualties reported Squads: 0 destroyed, 7 disabled Non Combat: 1 destroyed, 15 disabled Engineers: 0 destroyed, 1 disabled Aircraft Attacking: 21 x Ki-21-Ic Sally bombing from 6000 feet Ground Attack: 4 x 250 kg GP Bomb 21 x Ki-21-Ic Sally bombing from 6000 feet Ground Attack: 4 x 250 kg GP Bomb 31 x Ki-30 Ann bombing from 6000 feet Ground Attack: 1 x 250 kg GP Bomb Also attacking 42nd Chinese Corps ... Also attacking 81st Chinese Corps ... Also attacking 4th Chinese Cavalry Corps ... Also attacking 81st Chinese Corps ... Also attacking 42nd Chinese Corps ... Also attacking 81st Chinese Corps ... Also attacking 42nd Chinese Corps ... Also attacking 81st Chinese Corps ... -------------------------------------------------------------------------------- Morning Air attack on Bataan , at 78,77 Weather in hex: Light cloud Raid detected at 114 NM, estimated altitude 9,000 feet. Estimated time to target is 33 minutes Japanese aircraft Ki-21-IIa Sally x 29 Ki-43-Id Oscar x 42 Ki-48-Ib Lily x 20 Japanese aircraft losses Ki-21-IIa Sally: 5 damaged Ki-48-Ib Lily: 3 damaged Port hits 17 Port supply hits 2 Aircraft Attacking: 29 x Ki-21-IIa Sally bombing from 9000 feet Port Attack: 4 x 250 kg GP Bomb 20 x Ki-48-Ib Lily bombing from 9000 feet Port Attack: 4 x 100 kg GP Bomb -------------------------------------------------------------------------------- Morning Air attack on Yenan , at 88,37 Weather in hex: Light cloud Raid spotted at 9 NM, estimated altitude 12,000 feet. Estimated time to target is 2 minutes Japanese aircraft Ki-43-Ic Oscar x 20 Ki-48-Ib Lily x 8 No Japanese losses Airbase hits 2 Airbase supply hits 1 Runway hits 4 Aircraft Attacking: 8 x Ki-48-Ib Lily bombing from 9000 feet * Airfield Attack: 2 x 100 kg GP Bomb -------------------------------------------------------------------------------- Morning Air attack on 18th Chinese Corps, at 73,49 , near Kweiyang Weather in hex: Heavy rain Raid spotted at 42 NM, estimated altitude 10,000 feet. Estimated time to target is 12 minutes Japanese aircraft Ki-21-IIa Sally x 12 Ki-43-Ib Oscar x 10 Ki-48-IIa Lily x 10 Japanese aircraft losses Ki-21-IIa Sally: 6 damaged Ki-21-IIa Sally: 1 destroyed by flak Ki-48-IIa Lily: 6 damaged Ki-48-IIa Lily: 1 destroyed by flak Allied ground losses: 49 casualties reported Squads: 0 destroyed, 2 disabled Non Combat: 0 destroyed, 2 disabled Engineers: 0 destroyed, 1 disabled Aircraft Attacking: 12 x Ki-21-IIa Sally bombing from 6000 feet Ground Attack: 4 x 250 kg GP Bomb 8 x Ki-48-IIa Lily bombing from 6000 feet Ground Attack: 4 x 100 kg GP Bomb Also attacking 59th Chinese Corps ... Also attacking 18th Chinese Corps ... -------------------------------------------------------------------------------- Morning Air attack on Lashio , at 62,46 Weather in hex: Moderate rain Raid spotted at 20 NM, estimated altitude 14,000 feet. Estimated time to target is 5 minutes Japanese aircraft Ki-21-IIa Sally x 50 Japanese aircraft losses Ki-21-IIa Sally: 2 damaged Allied ground losses: 15 casualties reported Squads: 0 destroyed, 2 disabled Non Combat: 0 destroyed, 0 disabled Engineers: 0 destroyed, 0 disabled Airbase hits 8 Airbase supply hits 1 Runway hits 14 Aircraft Attacking: 24 x Ki-21-IIa Sally bombing from 8000 feet Ground Attack: 4 x 250 kg GP Bomb 26 x Ki-21-IIa Sally bombing from 8000 feet Airfield Attack: 4 x 250 kg GP Bomb Also attacking 99th Chinese Corps ... Also attacking Lashio ... Also attacking 65th Chinese Corps ... Also attacking Lashio ... Also attacking 99th Chinese Corps ... Also attacking Lashio ... Also attacking 99th Chinese Corps ... Also attacking Lashio ... Also attacking 28th Chinese Corps ... Also attacking Lashio ... Also attacking 99th Chinese Corps ... Also attacking Lashio ... Also attacking 99th Chinese Corps ... Also attacking Lashio ... -------------------------------------------------------------------------------- Morning Air attack on 42nd Chinese Corps, at 88,37 (Yenan) Weather in hex: Light cloud Raid spotted at 5 NM, estimated altitude 12,000 feet. Estimated time to target is 1 minutes Japanese aircraft Ki-21-Ic Sally x 16 No Japanese losses Allied ground losses: 45 casualties reported Squads: 1 destroyed, 0 disabled Non Combat: 0 destroyed, 5 disabled Engineers: 0 destroyed, 0 disabled Aircraft Attacking: 16 x Ki-21-Ic Sally bombing from 6000 feet * Ground Attack: 2 x 250 kg GP Bomb -------------------------------------------------------------------------------- Morning Air attack on 16th Chinese Corps, at 62,46 (Lashio) Weather in hex: Moderate rain Raid spotted at 17 NM, estimated altitude 10,000 feet. Estimated time to target is 5 minutes Japanese aircraft G4M1 Betty x 28 No Japanese losses Allied ground losses: 13 casualties reported Squads: 0 destroyed, 1 disabled Non Combat: 0 destroyed, 1 disabled Engineers: 0 destroyed, 0 disabled Aircraft Attacking: 25 x G4M1 Betty bombing from 8000 feet Ground Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb 3 x G4M1 Betty bombing from 8000 feet Ground Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb Also attacking 60th Chinese Corps ... Also attacking 63rd Chinese Corps ... Also attacking 16th Chinese Corps ... Also attacking 63rd Chinese Corps ... Also attacking 16th Chinese Corps ... -------------------------------------------------------------------------------- Morning Air attack on 16th Chinese Corps, at 62,46 (Lashio) Weather in hex: Moderate rain Raid spotted at 4 NM, estimated altitude 9,000 feet. Estimated time to target is 1 minutes Japanese aircraft G4M1 Betty x 9 No Japanese losses Aircraft Attacking: 9 x G4M1 Betty bombing from 8000 feet Ground Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb -------------------------------------------------------------------------------- Morning Air attack on Ambon , at 76,109 Weather in hex: Light cloud Raid spotted at 19 NM, estimated altitude 14,000 feet. Estimated time to target is 6 minutes Japanese aircraft A6M2 Zero x 6 G4M1 Betty x 26 Japanese aircraft losses G4M1 Betty: 11 damaged G4M1 Betty: 1 destroyed by flak Allied ground losses: 6 casualties reported Squads: 0 destroyed, 0 disabled Non Combat: 0 destroyed, 1 disabled Engineers: 0 destroyed, 0 disabled Airbase hits 6 Airbase supply hits 2 Runway hits 11 Aircraft Attacking: 14 x G4M1 Betty bombing from 9000 feet Airfield Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb 9 x G4M1 Betty bombing from 9000 feet Airfield Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb 3 x G4M1 Betty bombing from 9000 feet Airfield Attack: 2 x 250 kg SAP Bomb, 4 x 60 kg GP Bomb -------------------------------------------------------------------------------- Morning Air attack on Singkep Aviation Base Force, at 49,87 (Singkep) Weather in hex: Light rain Raid spotted at 15 NM, estimated altitude 11,000 feet. Estimated time to target is 5 minutes Japanese aircraft G4M1 Betty x 25 Japanese aircraft losses G4M1 Betty: 5 damaged G4M1 Betty: 1 destroyed by flak Allied ground losses: 6 casualties reported Squads: 0 destroyed, 0 disabled Non Combat: 0 destroyed, 1 disabled Engineers: 0 destroyed, 0 disabled Aircraft Attacking: 24 x G4M1 Betty bombing from 8000 feet Ground Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb -------------------------------------------------------------------------------- Morning Air attack on Chungking , at 76,45 Weather in hex: Moderate rain Raid spotted at 17 NM, estimated altitude 12,000 feet. Estimated time to target is 5 minutes Japanese aircraft Ki-48-Ib Lily x 6 No Japanese losses Runway hits 2 Aircraft Attacking: 6 x Ki-48-Ib Lily bombing from 9000 feet * Airfield Attack: 2 x 100 kg GP Bomb -------------------------------------------------------------------------------- Morning Air attack on Ambon , at 76,109 Weather in hex: Light cloud Raid spotted at 44 NM, estimated altitude 22,000 feet. Estimated time to target is 14 minutes Japanese aircraft A6M2 Zero x 12 No Japanese losses Aircraft Attacking: 12 x A6M2 Zero sweeping at 20000 feet -------------------------------------------------------------------------------- Morning Air attack on Palembang , at 48,91 Weather in hex: Clear sky Raid spotted at 38 NM, estimated altitude 35,810 feet. Estimated time to target is 12 minutes Japanese aircraft A6M2 Zero x 18 No Japanese losses Aircraft Attacking: 18 x A6M2 Zero sweeping at 32810 feet -------------------------------------------------------------------------------- Morning Air attack on Palembang , at 48,91 Weather in hex: Clear sky Raid spotted at 36 NM, estimated altitude 33,810 feet. Estimated time to target is 11 minutes Japanese aircraft A6M2 Zero x 18 No Japanese losses Aircraft Attacking: 18 x A6M2 Zero sweeping at 32810 feet -------------------------------------------------------------------------------- Afternoon Air attack on Manila USAAF Base Force, at 79,78 (Batangas) Weather in hex: Partial cloud Raid detected at 35 NM, estimated altitude 14,000 feet. Estimated time to target is 12 minutes Japanese aircraft G4M1 Betty x 17 Japanese aircraft losses G4M1 Betty: 3 damaged Allied ground losses: 33 casualties reported Squads: 0 destroyed, 0 disabled Non Combat: 1 destroyed, 5 disabled Engineers: 0 destroyed, 0 disabled Aircraft Attacking: 17 x G4M1 Betty bombing from 14000 feet Ground Attack: 2 x 250 kg GP Bomb, 4 x 60 kg GP Bomb -------------------------------------------------------------------------------- Afternoon Air attack on 92nd Chinese Corps, at 73,49 , near Kweiyang Weather in hex: Heavy cloud Raid spotted at 15 NM, estimated altitude 14,000 feet. Estimated time to target is 4 minutes Japanese aircraft Ki-21-IIa Sally x 9 No Japanese losses Allied ground losses: 41 casualties reported Squads: 1 destroyed, 2 disabled Non Combat: 1 destroyed, 0 disabled Engineers: 0 destroyed, 0 disabled Aircraft Attacking: 9 x Ki-21-IIa Sally bombing from 11000 feet * Ground Attack: 2 x 250 kg GP Bomb -------------------------------------------------------------------------------- Ground combat at Bataan (78,77) Japanese Bombardment attack Attacking force 87205 troops, 773 guns, 140 vehicles, Assault Value = 2695 Defending force 52742 troops, 907 guns, 1267 vehicles, Assault Value = 925 Assaulting units: 138th Brigade 21st Ind. Engineer Regiment 48th Division 52nd Division 3rd Ind. Engineer Regiment 65th Division 44th Infantry Division 54th Division 16th Division 90th Guards Brigade 14th Army 1st Medium Field Artillery Regiment Defending units: 57th PS Infantry Regimental Combat Team Subic Bay Defenses 4th Marine Regiment 2nd PA Constabulary Division Manila Bay Defenses 26th PS Cavalry Regiment 31st Infantry Regiment 192nd Tank Battalion 45th PS Infantry Regimental Combat Team 21st PA Infantry Division 194th Tank Battalion 8th PA Infantry Division Bataan USN Base Force 201st PA Construction Battalion I Philippine Corps Far East USAAF Provisional GMC Grp USAFFE 200th & 515th Coast AA Regiment 803rd Engineer Aviation Battalion Clark Field Coast AA Regiment 201st Coast AA Regiment 88th PS Field Artillery Regiment Bataan Coast AA Regiment 14th PS Engineer Regiment 301st PA Field Artillery Regiment 1st USMC AA Battalion Asiatic Fleet 202nd PA Construction Battalion Clark Field USAAF Base Force 301st Construction Battalion 86th PS Coastal Artillery Battalion 1st USAFFE Aviation -------------------------------------------------------------------------------- Ground combat at Tandjoengpinang (50,85) Japanese Shock attack Attacking force 4130 troops, 44 guns, 13 vehicles, Assault Value = 142 Defending force 4600 troops, 20 guns, 11 vehicles, Assault Value = 19 Japanese adjusted assault: 28 Allied adjusted defense: 41 Japanese assault odds: 1 to 2 (fort level 1) Combat modifiers Defender: terrain(+), fatigue(-), morale(-), experience(-), supply(-) Attacker: shock(+), leaders(-), fatigue(-) Allied ground losses: 21 casualties reported Squads: 0 destroyed, 0 disabled Non Combat: 0 destroyed, 2 disabled Engineers: 1 destroyed, 4 disabled Assaulting units: 2nd/C Division Defending units: Bintan Base Force Tandjo Aviation Base Force