wneumann -> RE: Sleepless on Samoa, the Sequel (wneumann vs Jolly Pillager) (7/16/2012 10:42:13 PM)
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Summary of Operations 12/31/42 1/43 US Carrier Air Group Reorganization: I may have been fortunate in catching this at the last moment. This is related to changes due to occur with reorganization of VB and VS bombing squadrons aboard all six US fleet CV’s during the early part of 1943. Two actions occur in this reorganization process – (1) VB squadrons aboard 5 of the 6 carriers (except CV Wasp) increase in size from 18 to 36 planes or can be manually set to keep their current size at 18. The five VB squadrons along with VS-72 on Wasp remain in the game as the one bombing squadron to be kept aboard each carrier. It appears VS-72 on CV Wasp can be resized to any desired number of planes within the ship’s remaining plane capacity or can be manually set to keep VS-72 at its current size of 15 planes. (2) VS squadrons aboard carriers other than CV Wasp plus squadron VS-71 aboard CV Wasp all have a withdrawal date of 1 March 43. Except for CV Wasp, VS squadrons aboard the other five carriers have two available options depending on the squadron size setting for each squadron – (a) disband in Jan 43 which appears could occur automatically at that time; or (b) set to “No resize allowed” which presumably allows the squadrons to remain in the game until their scheduled withdrawal date of 3/43. The major concern with option (a) on these 5 squadrons is that automatic withdrawal could wreak havoc on the five carriers’ air groups. In the case of VS-71 on CV Wasp, there is no setting for the squadron to disband in Jan 43 allowing the status quo to be kept for now. Initially, I had no problem allowing things to occur automatically, all other things being equal. On closer examination, maybe not. While I see this reorganization is required and must be completed by 3/1/43, there appear to be reason(s) that favor this process be done manually and incrementally. Current actions and plans to manually implement VB and VS squadron reorganization are as follows. The overall plan is doing this by individual carrier, rather than doing all carriers at once. Step (1) below is effective immediately (12/31/42), the remaining steps to be performed starting on or after 1/01/43 by individual carrier as air group reorganization is done aboard each carrier. (1) Size option on VB and VS squadrons aboard five of the six US fleet carriers (except CV Wasp) will be set to “No resize allowed” immediately to maintain the status quo on these carriers for now and prevent any automatic withdrawal of VS squadrons in Jan 43. (2) Except for CV Wasp, VS squadrons will be transferred off the carrier and become land-based pilot training squadrons until their scheduled 3/01/43 withdrawal date. Once moved off the carrier, two further actions will occur. Fully trained pilots in VS squadrons will transfer to the Reserve pilot pool, then replaced with rookie Replacement pilots and/or partially trained pilots now in the Reserve pool. Planes in transferred VS squadrons will undergo a reverse “upgrade” from SBD-3’s to older dive bomber types (either SBD-2 or SBC-4). This upgrade is expected to return SBD-3 planes from converted VS squadrons back to the aircraft replacement pool for front-line use in other air units. (3) Once step (2) above is completed for the VS squadron aboard an individual carrier, the VB squadron aboard that carrier will be expanded from 18 to 36 SBD-3 planes, this expansion intended to complete as quickly as possible. Additional SBD-3 planes will be drawn immediately from the replacement pool. Additional pilots needed to fill out the expanded VB squadron will be drawn from fully trained pilots in the Reserve pool. (4) At this point, no immediate action is being taken for the two VS squadrons aboard CV Wasp (VS-71 and VS-72), except size options for these two squadrons have been set to “No resize allowed” for the moment. With regard to reorganization, details with the situation aboard CV Wasp appear different than on the other five US fleet carriers. I suspect it likely that reorganization aboard CV Wasp will be handled differently than the other US fleet carriers. Exactly how remains to be determined. With all that… completion of steps outlined above have to be accomplished on all six US carriers by 3/01/43. Three considerations are compelling me to handle this process manually (if possible) rather than automatically allow things to happen. First, I have only 50 SBD-3 planes in the replacement pool as of 12/31/42 – not enough planes to allow a reorganization of VB/VS squadrons aboard all six US fleet carriers simultaneously (at least 90 SBD-3 estimated as required in the aircraft replacement pool to do air groups on all six carriers at once). Second, plans are being considered for offensive operations by the main US carrier force in early 1943 – uncontrolled reorganization of VB/VS squadrons possibly delaying or disrupting an operation. Third, rather than allowing automatic withdrawal of VS squadrons in Jan 43, short-term employment of at least some of the VS squadrons in a land-based pilot training role for up to two months prior to 3/01/43 might be a feasible option. With the 50 SBD-3’s currently available in the replacement pool, VB/VS squadrons can be reorganized immediately starting 1/01/43 for two of the five carriers (excluding CV Wasp) with a third carrier stated very shortly thereafter. The process would be implemented on other carriers as additional SBD-3 planes are produced (25 per month) and/or SBD-3 planes from converted VS squadrons re-enter the replacement pool in sufficient numbers. Timing of the air group reorganization on later carriers will depend on availablity of SBD-3 planes in the aircraft replacement pool - 18 planes typically needed to begin reorganization for another carrier. My intent is to complete this process as quickly as possible aboard all six US fleet carriers. I haven’t found any discussion of this in the forums, the subject might be a good topic for discussion. All readers are welcome to chime in. Central Pacific: PBY Catalina air patrols maintain contact with unidentified Jap submarine still in Christmas Is base hex. No reported attacks on the Jap sub. Sigint entry for 12/30 reports heavy volume of intercepted Jap radio transmissions from Truk. Detected status of Truk shows the expected Jap aircraft based there and ship(s) in port, otherwise no visible Japanese forces or activity. Intercepted Jap radio transmissions from Jaluit were reported in another 12/30 Sigint entry. Detected status of Jaluit shows no visible Japanese forces or activity. South Pacific: Several actions reported E of Auckland between Jap submarines and Allied surface ASW. AAR’s follow. -------------------------------------------------------------------------------- ASW attack near Auckland at 117,185 (just outside Auckland) Japanese Ships SS I-1, hits 1 (probably no significant damage) Allied Ships DD Pope xAK Time xAKL Darvel xAKL Georgian SS I-1 launches 4 torpedoes at DD Pope I-1 diving deep .... DD Pope attacking submerged sub .... Escort abandons search for sub -------------------------------------------------------------------------------- Sub attack near Raoul Island at 125,185 (SW of Raoul Island) Japanese Ships SS I-19 Allied Ships SC-701, Torpedo hits 1, heavy damage (sunk) SC-700 DD Schley SS I-19 launches 2 torpedoes at SC-701 I-19 diving deep .... DD Schley fails to find sub, continues to search... Escort abandons search for sub -------------------------------------------------------------------------------- Small Jap air bombing raids on Norfolk Is airfield continue. Daily coastwatcher entries from 12/30 Operations report follow. One or multiple unidentified Jap TF(s) detected and visible in Rabaul. Coastwatcher Report: 3 ships in port at Tulagi Coastwatcher Report: 3 ships in port at Buna Coastwatcher Report: 3 ships in port at Lae Coastwatcher Report: 1 ship in port at Milne Bay Coastwatcher Report: harbor at Rabaul is reported empty Coastwatcher Report: 6 ships in port at Noumea Coastwatcher Report: 1 ship in port at Efate Coastwatcher Report: 1 ship in port at Luganville Coastwatcher sighting: 1 Japanese ship at 106,125 near Rabaul, Speed unknown Coastwatcher sighting: 8 Japanese ships at 115,160 near Noumea, Speed unknown Coastwatcher sighting: 3 Japanese ships at 114,138 near Lunga, Speed unknown Coastwatcher Report: 5 ships reported in port at Rabaul Coastwatcher Report: 4 ships in port at Luganville Coastwatcher sighting: 1 Japanese ship at 106,125 near Rabaul, Speed unknown Coastwatcher sighting: 1 Japanese ship at 114,136 near Thousand Ships Bay, Speed unknown Coastwatcher sighting: 4 Japanese ships at 114,138 near Lunga, Speed unknown Australia: As a measure to boost accumulation of fuel point stockpiles in Australia, heavy industry production centers at Sydney, Melbourne, Brisbane and Adelaide were shut down at least temporarily. From research I had done in the forums, it appears HI located in Australia could be shut down at least on a temporary basis without disrupting other production - this due to the apparent fact that HI points pooled for the Allies can be used anywhere regardless of where the HI points were produced or are required. Light industry production in Australia is continuing at full capacity as there are ample quantities of available resource points domestically. Domestic stocks of resource points in Australia have been augmented by a small fleet of xAKL’s in continuous operation between Hobart and Melbourne transporting resource points to the mainland from Tasmania. DEI: Sigint entry for 12/29 reports intercepted radio transmissions from one or more unidentified Jap TF(s) at hex location 67, 107 along the southern coast of Celebes between Makassar and Kendari. No information available as to number of Jap TF, their composition or movement. Malacca Straits: Dutch submarine O-21 on patrol near the straits takes on Jap surface ASW. AAR follows. -------------------------------------------------------------------------------- Sub attack near Phuket at 47,71 (SE of Phuket) Japanese Ships PB Tokuho Maru #5 SC CHa-10 Allied Ships SS O21 SS O21 launches 2 torpedoes at PB Tokuho Maru #5 PB Tokuho Maru #5 fails to find sub, continues to search... Escort abandons search for sub -------------------------------------------------------------------------------- Burma: Detected status of Jap base in Rangoon from British aerial recon – no Japanese ships anchored in port, 2 Jap TF in harbor (-1 from last report), 40 aircraft (40 fighters, no bombers), 10 Jap LCU’s. China: Japanese ground bombardment attacks continue at Chengtu, ground assault outside Chungking. AAR’s and current situation map of Chungking area follow. -------------------------------------------------------------------------------- Ground combat at 76,44 (adjacent hex SW of Chungking) Japanese Deliberate attack Attacking force 24274 troops, 208 guns, 0 vehicles, Assault Value = 832 Defending force 27671 troops, 187 guns, 0 vehicles, Assault Value = 976 Japanese adjusted assault: 108 Allied adjusted defense: 550 Japanese assault odds: 1 to 5 Combat modifiers Defender: experience(-), supply(-) Attacker: fatigue(-), supply(-) Japanese ground losses: 1072 casualties reported Squads: 2 destroyed, 110 disabled Non Combat: 1 destroyed, 10 disabled Engineers: 0 destroyed, 14 disabled Allied ground losses: 1076 casualties reported Squads: 25 destroyed, 193 disabled Non Combat: 0 destroyed, 30 disabled Engineers: 0 destroyed, 2 disabled Guns lost 18 (2 destroyed, 16 disabled) Assaulting units: 13th Division 40th Division Defending units: 52nd Chinese Corps 27th Chinese Corps 44th Chinese Corps 62nd Chinese Corps 71st Chinese Corps 93rd Chinese Corps 16th Group Army 35th Group Army 2nd Prov Chinese Corps -------------------------------------------------------------------------------- Ground combat at Chengtu (75,41) Japanese Bombardment attack Attacking force 55372 troops, 628 guns, 315 vehicles, Assault Value = 1771 Defending force 34763 troops, 300 guns, 0 vehicles, Assault Value = 1122 Allied ground losses: 181 casualties reported Squads: 6 destroyed, 11 disabled Non Combat: 0 destroyed, 1 disabled Engineers: 1 destroyed, 1 disabled Assaulting units: 15th Division 104th Division 35th Division 8th Armored Car Co 36th Division 2nd Ind.Mixed Brigade 3rd Ind.Hvy.Art. Battalion 23rd Army 2nd Ind.Hvy.Art. Battalion 1st Hvy.Artillery Regiment 6th Medium Field Artillery Regiment 2nd Mortar Battalion 2nd Ind. Mountain Gun Regiment 10th Ind. Mountain Gun Regiment 20th Ind. Mtn Gun Battalion Defending units: 24th Chinese Corps 64th Chinese Corps 88th Chinese Corps 3rd New Chinese Corps 80th Chinese Corps 28th Chinese Corps 95th Chinese Corps 39th New Chinese Division 10th Group Army 28th New Chinese Division 3rd Chinese Base Force 14th Group Army 4th Construction Regiment -------------------------------------------------------------------------------- [image]local://upfiles/18646/FAAF520F53AC4AC9ACB89217C846AC54.jpg[/image] Japanese ground assault in far western area. AAR follows. -------------------------------------------------------------------------------- Ground combat at 80,21 (NW of Ansi) Japanese Deliberate attack Attacking force 12524 troops, 102 guns, 0 vehicles, Assault Value = 459 Defending force 5113 troops, 61 guns, 0 vehicles, Assault Value = 151 Japanese adjusted assault: 386 Allied adjusted defense: 63 Japanese assault odds: 6 to 1 Combat modifiers Defender: terrain(+), morale(-), experience(-), supply(-) Attacker: leaders(+) Japanese ground losses: 88 casualties reported Squads: 0 destroyed, 10 disabled Non Combat: 0 destroyed, 2 disabled Engineers: 0 destroyed, 0 disabled Allied ground losses: 1615 casualties reported Squads: 47 destroyed, 0 disabled Non Combat: 43 destroyed, 9 disabled Engineers: 0 destroyed, 0 disabled Guns lost 3 (3 destroyed, 0 disabled) Units retreated 7 Defeated Allied Units Retreating! Assaulting units: 6th Division Defending units: 9th Separate Brigade 82nd Chinese Corps 8th War Area 5th Chinese Base Force 17th Chinese Corps 303rd Brigade 12th Chinese Base Force --------------------------------------------------------------------------------
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