The Battle at Dawn: The first battle between the United States and Japan December 7-10, 1941

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Wondering what will happen with the Midway force. The Wake Island force will be trashed even worse than OTL as Wake is more prepared, the first attack OTL was completely repulsed. With Midway, the question is how well garrisoned is the island here. If the Japanese do get ashore, and if the Kido Butai has significant losses as well as not doing as well in the attack on PH, I wonder what their response would be. If the US fleet is not thoroughly trashed, then leaving any troops on Midway means they will be destroyed in short order. The smart move would be to treat the attack there as an amphibious raid, trash facilities, gather what intelligence you can, take some high value POWs, and being Japanese execute any other POWs and run away to fight another day. Contrary to popular thought a tactical retreat was not contrary to Japanese military doctrine, which this would be. Of course, this would be a "smart move" and right now the Japanese don't seem to be making any of these.
 
in OTL, they are operational 0400-0700 hours

In this timeline, they are all on alert due to events already taking place in the timeline

They weren't even supposed to be operational in OTL when they picked up the incoming force. IIRC one of the operators wanted more practice and so they stayed on after they were supposed to shut down...
 
Call to Battle
Call to Battle December 7, 1941
The Japanese strike force 0500 hours – 0605 hours
At 0430 hours, with the entire First Wave in the air, the crews of the Japanese carriers hurriedly bring up the remainder of the Second Wave strike force that was not already spotted on decks. Continued heavy seas causes delays, so the planned launch does not finally begin until 0515, which is 15 minutes later than anticipated. However by 0530 all of the Second Wave planes are in the air, and crews begin preparing the next wave. It is not until 0620 hours that the Third Wave has completed forming up over the fleet in the early morning light and proceeds south on its mission.

Lieutenant Commander Murita meanwhile is flying south along with 39 Kate torpedo bombers and 3 Val dive bombers. They are in groups of 2s and 3s, as attempting to form up in the dark over the fleet was considered too risky in terms of possible collisions as well as too time consuming. The aircraft are forced to drop down to below 450 feet, as an overcast ceiling is at 500 feet which blocks their ability to see the ocean below. The aircraft are able to see their first checkpoint (the destroyer Arare) well enough and finally as they approach within 100 miles of Oahu the clouds begin to thin out. A pair of Kates from the Akagi miss the Arare (the last flight of the bomber stream) they are still too low when they find a mountain peak just south of the Oahu North Shore and both are destroyed with their crews. Their fate would remain a mystery for nearly 2 years before American soldiers training for operations in the Pacific War find the wreckage.

As a result of this low level flying, the Japanese torpedo bombers are not discovered by radar until Kawailoa picks them up briefly as they travel west of Oahu, and then they are picked up again by the radar at Fort Shafter, just in time to pass the word to Air Defense Command and then the Fleet at 0612 hours. By that time the fleet was well aware that an attack was underway.

However, the Second Wave has fewer difficulties, and is relying more on radio signals than visual cues as it flies over the Arare, and are at 10,000 feet as they enter radar range 130 miles north of Opana Point. At 0600 hours the Japanese formation is picked up, and by 0605 a full scale air raid alert is underway.

American Land based Aviation Central Pacific
Air Defense Command Hawaii (Brigadier General McConnell)
Wheeler Field
HQ 14th Pursuit Wing (15th and 18th Pursuit Groups)
15th Pursuit Group w 44th, 47th Pursuit Squadrons (24 P40), 45th Pursuit squadron (12 P36)
72nd Pursuit Squadron (8 P26)
undergoing maintenance and repair (unassigned) 7 P26, 15 P36, 25 P40, 8 observation aircraft
53rd Coast Artillery brigade (AAA) with 18 x 3 inch, 12 x 37mm AA, dozens of machines guns

Operational aircraft are located in revetments, aircraft undergoing repair and maintenance or that are lacking needed spares are in hangers or parked on the ramp

(authors note: Wheeler had 108 revetments built prior to the attack in OTL. The aircraft were instead lined up on the ramp to protect them from sabotage).


Bellows Field
18th Pursuit Group w 6th, 73rd, 78th Pursuit Squadrons (36 P40), 46th Pursuit Group (12 P36)
6 operational observation aircraft of several types
all aircraft are parked on the ramp and dispersed. Revetments are planned but have not yet been built
15th Coast Artillery Brigade (AA) same as 53rd Brigade

Haleiwa Field
47th Pursuit Squadron -12 P40 (assigned as part of 15th Pursuit Group)
parked on the ramp but dispersed

Ewa Field
Marine Air Group 21 (fighters are assigned to 14th Pursuit Wing while in Hawaii)
VMF 211 – 12 Wildcats (operational)(4 additional undergoing maintenance)
VMSB 232 – 24 SBD (16 operational, 8 undergoing repair)
VMSB 231 – 8 SB2U (all undergoing repair, remainder of squadron aboard USS Lexington)
3rd Marine Defense battalion (18 x 3 inch AA, dozens of machine guns), deployed in fortified positions

Air Search Command (Rear Admiral Bellinger)
Midway NAS (forward deployed) VP21 w 12 PBY, VJ3 w 8 float planes
(all aircraft are parked on the ramp or floating in the lagoon and are dispersed)
6th Marine Defense battalion (750 men, 18 x 3 inch AA, 6 x 5 inch anti shipping guns, dozens of machine guns)

Kaheohe NAS
Patrol Wing 2 w VP 11, VP 12, VP 14 (30 PBY operational, 6 undergoing repair in hangers)
operational aircraft parked on the ramp or floating in the bay
4th Marine Defense battalion (18 x 3 inch AA guns, dozens of machine guns) deployed in fortified positions

Ford Island NAS
Patrol Wing 1 w VP 21, VP 22, VP 23 (29 PBY operational, 6 undergoing maintenance and repair)
VJ2 w 18 assorted floatplanes, plus 30 various float planes from the battleships and cruisers (25 operational aircraft)
all aircraft parked on the ramp (dispersed) or in hangers.
5 Wildcat, 5 Buffalo, 2 SBD from the carriers are at Ford Island in hangers undergoing repair

Hickem Field
HQ 18th Bomb Wing (Brigadier General Rudolph)
5th Bomb Group w 23rd, 31st Bomb Squadrons (8 B17D operational, 4 undergoing repair)
11th Bomb Group w 11th, 26th, 42nd Bomb Squadrons (24 B18 operational, 9 undergoing repair and maintenance)
58th Bomb Squadron (9 A20 operational, 5 undergoing repair and maintenance)
also assigned, 2 C33 transports (basically civilian DC2 transport aircraft)
16th Coast Artillery brigade (AA) same as 53rd

Hickem lacks revetments, but aircraft that are operational are dispersed while aircraft undergoing maintenance are in hangers or on the main ramp

Other Defenses
3 additional coast artillery (AA) brigades are deployed, with 1 at Pearl Harbor base, another across the harbor at Ford City, and a third at Schofield Barracks in reserve. This is in addition to the AA units that are part of the coast defense fortifications..

All Marine and Army AA units are on alert as of 0600 hours

7Dec41-2.jpg


The Scramble
As of 0600 hours, all aircraft that are operational are armed, fueled, and their crews are standing by for their daily missions and patrols. The Navy utility, Marine Scout Bombers, and Army B18s are scheduled to conduct close range patrols and are armed with light bombs and have orders to attack submarine contacts. The B17s and PBYs are scheduled to conduct long range patrols out to 500 miles, except for 8 PBY from VP21 which are specifically assigned to go find the survivors of the Gamble (if any). The first take offs will be at first light, 0605 hours (the B17s and PBYs) with a the morning dawn patrol of a fighter squadron each from Bellows and Wheeler (6th and 44th Pursuit squadrons). All other fighter squadrons are on strip alert for the next three hours. The Marine Corps fighter squadron has a flight of 4 Wildcats that is scheduled to take off at 0615 hours to patrol over Pearl Harbor.

However, as the first incoming blips are identified on radar at 0515 hours, these plans are changed. All aircraft that can fly are to take off as soon as it is light enough, at 0600 hours. Fighters are ordered to assemble over Wheeler Field and Bellows Field until Nautical twilight when they are to be prepared to engage incoming bogies. All other aircraft will take off and proceed on their missions. The Marines scramble their fighters at 0610 hours.

A urgent message is sent to Major Landon diverting his squadron of 11 B17s that are inbound to their alternate landing field at Hilo. A message is attempted to get CBS radio off the air, but does not reach the technicians until well after 0700 hours. In the rush to prepare, the signals transmitted by the Japanese submarines off the coast are missed, but reports eventually do make their way to Admiral Bellinger regarding the visual sightings made when they used their searchlights. The two Japanese submarines have long since submerged and departed those positions by that time.

US Navy Hawaiian area December 7, 1941
North of Oahu (400-450 miles north) Task Force 9 Picket force
Destroyer minelayers Gamble, Ramsey, Montgomery, Pruitt, Tracy (Gamble has been sunk)
submarines S-18, S-23, S-34, Gudgeon, Plunger, Tambor, Thresher

Refueling off Laysan Island
Scouting Force (Halsey)
Task Force 2 (Brown) carrier Lexington (w 37 Dauntless dive bombers, 18 Devastator torpedo bombers, 17 Buffalo fighters), carrier Yorktown (36 Dauntless dive bombers, 18 Devastator torpedo bombers, 18 Wildcat fighters) heavy cruisers Chicago, Portland, Astoria, Indianapolis (joined on December 6) destroyers Porter, Drayton, Flusser, Lamson, Mahan, Cummings, Case, Tucker,

Task Force 3 (Halsey) carrier Enterprise (37 Dauntless dive bombers, 18 Vindicator Dive bombers,18 Devastator torpedo bombers, 14 Wildcat fighters), heavy cruisers Northampton, Chester, Salt Lake City, destroyers Blach, Maury, Craven, Gridley, McCall, Dunlap, Benham, Fanning, Ellet

Task Force 8 (Fletcher) heavy cruiser Minneapolis, destroyers Farragut, Aylwin, Monaghan, Farragut, destroyer minesweepers Chandler, Hovey, Boggs, Lamberton, fleet oilers Platte, Tippacanoe, Santee, Sangamon

French Frigate Shoals
Passing nearby: (returning from Midway) Seaplane Tender Wright (civilians aboard), Tranport Burrows (en route to Wake Island, carrying extra five inch guns, Marines to man them, radar and signals equipment, ammunition and engineering supplies),
station: small seaplane tender Swan, Destroyer minelayer Sicard, patrol gunboat Sacramento

Kure:
small seaplane tender Avocet, destroyer minelayer Breese,

off Honolulu harbor
TF 15 Light Cruiser (Rear Admiral Fairfax Leary) Helena, Phoenix, destroyers MacDonough, Phelps, Chew, Allen

In port Pearl Harbor
110 Dock: battleships Oklahoma (moved 0400 hours)
California (inboard, moved 0400 hours), Fleet Target ship Utah (w 1 tug) (outboard)(in motion), submarine Cachelot
Drydock: battleship Pennyslvania, destroyers Cassin, Downes
Floating drydock: destroyer Shaw

Naval Station (Fleet) docks:
heavy cruisers San Francisco, New Orleans, St Louis, light cruiser Honolulu, destroyers Jarvis, Mugford, Bagley, Cummings, minesweeper Greebe, destroyer minesweeper Trever, Zane, Perry Wasmuth, destroyer minelayer Breese, oiler Ramapo, repair ship Argonne, Rigel,

Southeast Loch
(submarine base) docks: submarine tender Pelias, rescue ship Widgeon, repair ship Sumner, stores ship Castor, submarines Narwhal, Dolphin, Tautog,

Carrier Row:
Seaplane Tenders Tangiers, Curtis (historic location of Utah), seaplane tenders (converted destroyers) Thornton (OTL location of Raleigh), Hulbert (OTL location of Detroit)

Middle loch:
repair ship Medusa, hospital ship Solace (moved 0400 hours)

Battleship Row
battleship Nevada (inboard), destroyer Dobbin (moved 0400 hours)
battleship Arizona (inboard), repair ship Vestal (outboard)
battleship Tennessee (inboard), destroyer Hull (outboard)
battleship Maryland (inboard), destroyer Dewey (outboard)

tied to Ford Island dock: Oiler Neosho
battleship West Virginia (inboard), destroyer Worden (outboard)

channel in off battleship row: Destroyer Selfridge, minelayer Oglala, 6 PT Boats, numerous other boats, 3 tugs

East Loch
destroyers: Henley, Patterson, Ralph Talbot
destroyer tender: Whitney, destroyers Conyngham, Reid, Tucker, Case,

harbor entrance
destroyers Blue, Ward, Helm, 4 minesweepers

All ships are at Condition II (Modified General Quarters) with the exception of the duty destroyers and minesweepers which are at Condition I (General Quarters). At this level, all are at most a couple of minutes away from Condition I

As of 0610, all ships are at Condition One and several have already opened fire


 
all ships being at general quarters should decrease the chance of total loss of the ships, no?

several important changes
The USS California and USS Oklahoma in OTL had a number of important hatches open that could not be closed hurriedly, increasing the rate of flooding after they were hit.
All guns are manned (although many are masked by other ships or terrain features)
damage control teams are assembled and ready to move
ship power is on and thus water is immediately available to fight fires with

what hasn't changed
many of the warships present are 20 years old or more, and some of them are in serious need of a refit. Hatches and bulkheads were weaker materially than they were when new. Mostly because during the 1930s maintenance funds were limited and older ships did not get the care they needed. There are several reports of flooding occurring because of bad seals and weaker than constructed bulkheads and hatches.

So yes and no basically
 
As long as the USN fleet doesn't sortie out to be targeted by the IJN torpedo bombers outside the harbor and are ready to rumble against incoming airstrikes...

A chance to hurt the IJN air assets even more..
 
Shit is gonna hit the fan REAL quick and the plans will change once combat begins. Just how well will the US AAA and planes will do against the Japanese and will the Japanese fliers adapt to the changes they encounter?

Thanks for the update.
 
Air Raid Pearl Harbor
The First Wave – Air Raid Pearl Harbor, this is no drill
Lieutenant Commander Ramsey is standing on the ramp waiting for the first of the PBYs to begin taking off when he sees the explosion aboard the Neosho followed by a wave of gunfire and tracers. Rushing to the message sender, he orders an urgent message be broadcast in plain English for all of the Fleet, and thus the world, to hear.


Radio+Message.jpg





The USS Neosho
At 0605 hours, 3 Val dive bombers from the Kaga begin their glide bomb attack. After swinging past the harbor entrance, they line up using Honololu on their right as a reference, and fly over the harbor at 6,000 feet, beginning their attack using the lights of Ford Airfield as a final reference. As they are descending, they spot the tanker Neosho at the Ford Island dock and deciding it is a much easier target to hit than a relatively small of fuel tanks, they each drop a 250 kilogram bomb. The first two bombs hit the tanker, one amidships, another just forward of that, and immediately the tanker, loaded with aviation fuel, bursts into flame. The third Val is hit by fire from at several different ships and crashes into the water a few dozen meters south of the burning ship, not far from where its bomb impacts the water inflicting some crush damage of several hull plates and letting out gasoline while letting in water.

As the two surviving Val's are flying over Ford City seeking to escape, they blunder into 8 P26 Peashooters of the 72nd Pursuit Squadron and both are quickly shot down. However nervous American gunners, seeing aircraft with fixed landing gear just like the ones that bombed the Neosho open fire on them and 2 Peashooters are shot down in flames, their pilots killed, and the rest are all heavily damaged before they can break north away from the harbor. The 72nd Pursuit is out of the battle.

The bright flames of the Neosho however do the job just fine in lighting up Battleship row and providing the needed illumination.

The 110 Dock 0612 hours – 0627 hours
11 torpedo bombers from the Kaga have the mission of attacking Carrier Row, and if no carriers are present they are to join the 8 bombers from the Soryu in hitting targets on the 110 Dock. Both groups come in just west of Pearl City through the Middle Loch facing little flak initially as gunners aboard the 4 seaplane tenders, the Medusa and the army gunners at Pearl City are busy shooting up the 72nd Pursuit squadron. It is not until they are spotted by the ships around the 110 Dock that they are engaged, and with the dark night sky behind them the only illumination is from the flames of the Neosho and the city lights behind them. Nevertheless, they are engaged by the full anti-aircraft gun broadside of both the Utah and Oklahoma, machine gunners from the fighting tops of the California and West Virginia, a single machine gun from the Cachelot and fire from two PT boats and the forward guns of the destroyer Selfridge.

The Soryu torpedo bombers escape lightly from this blast of fire, as only 1 is downed and 3 others suffer damage but all manage to drop successfully. The Kaga bombers, having noted that the target size and shapes do not match a carrier at carrier row, come in behind the Soryu, but those few second quickly add up to their disadvantage. By the time they are engaged, the gunners have managed to overcome initial jitters and learned to make out the shapes moving in front of them and 5 of the Kaga torpedo bombers are blasted out of the sky before they can drop their torpedoes, while all 6 of the remainder are damaged. But those 6 also drop successfully.

The surviving torpedo bombers escape at their best speed but are engaged by gunners from Hickem field and then again as they fly over Honolulu by gunners aboard Task Force 15. Only 6 from the Soryu and 2 from the Kaga eventually make it back to their carriers and both of the Kaga bombers end up being write offs. But they report the location of Task Force 15 as they pass, and in the darkness confuse the Antares, an 11,000 ton cargo ship, as a third cruiser and are certain they spot a carrier as well.

The Japanese manage to drop successfully 18 torpedoes. Two of these end up buried in the mud due to malfunctions, another is dropped wide and smashes into the USS Cachelot, blowing off her entire stern and she sinks in less than a minute taking with her 15 men. Another smashes directly into the dock but does little substantial damage. But 4 torpedoes smash into the USS Utah, and 8 hit the Oklahoma and only heroic efforts prevent both of those ships from capsizing. However both sink quickly, and between the two ships nearly 400 men die.

Battleship Row 0615 – 0623 Hours
The 10 remaining (as 2 were lost en route to accidents) torpedo bombers from the Akagi come first with first plane spotted when it crashes into the Fleet Signal tower scattering flaming debris across the area. The two remaining aircraft, which are targeting the West Virginia are brought down before they can launch by fire from ships at the Fleet Dock, the minelayer Oglala, the destroyer Selfridge, as well as guns from the Worden and the fighting top machine gunners of the West Virginia. The lead plane smashes into the Selfridge however, setting a major fire in her aft superstructure and killing 12 American sailors.

The other 7 planes avoid mishaps but are brought under fire from the Vestal, Dewey, Dobbin, Hull, 4 PT boats, several Army guns, and the fighting top machine gunners on the Nevada, Arizona, Tennessee, and Maryland. The 8 from the Hiryu come in right behind and they end up getting the worst of the fire. All of the Akagi bombers manage to launch, but only 3 of the Hiryu bombers survive long enough to do so, and all of the survivors are damaged. They then blunder straight into VMF211 which has just taken off from Ewa and is still at low altitude west of the harbor. The Marines down all but 2 of the surviving torpedo planes as they attempt to escape, and only 2 of Hiryu bombers make it back to their carrier. However the Marine pilots exhaust their ammunition and are forced to land to rearm, placing them out of the fight for a over a half hour.

The Japanese manage to drop a total of 12 torpedoes at Battleship Row. Of these, 5 end up in the mud, another pair miss entirely and thus only 5 hit a target. The Vestal is hit twice, one by a direct hit that wrecks her engine room, while another blast ruptures her hull at her forward hold, causing serious flooding as the torpedo detonates against the Arizona after passing under her. This torpedo explodes against the torpedo void of the Arizona and does little damage although does cause some serious leaks. The next hit is against the USS Hull, which takes one directly into her aft magazine, causes the entire rear half of the ship to disappear in a massive explosion that starts fires on the Vestal, Tennessee, and Arizona. The other two pass underneath the Dobbin and hit the Nevada, causing serious flooding in her steering compartment as well as two boiler rooms. The Dobbin suffers serious damage from the concussion, as heavy flooding begins due to hull ruptures. Between these hits, over 300 Americans are killed.

In all the Japanese have sunk what they think are two battleships, severely damaged two others and the surviving pilots are convinced that they have met the minimal goal of the attack which is to knock 4 American battleships out of the war for months. What the Japanese have actually done is lost 75% of their best torpedo bomber crews (30 out of 40 lost, including those lost en route) to sink 1 battleship, 1submarine, 1 destroyer, 1 target ship, 1 repair ship and inflict serious damage on 2 battleships, 1 fleet oiler and 2 destroyers. They have also drawn 2 American fighter squadrons out of the fight for now.
 
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authors note:

I couldn't resist posting that message

Japanese torpedo planes against well defended targets suffered loss rates running 50-90% in World War II, so I took the average and included likely accidents such as hitting towers that are much higher than surrounding buildings. These were the best trained torpedo attack pilots in the world, so their hit percentage remains high. Historically the Japanese got roughly a 50% hit rate, and they were under fire from all available guns within 5 minutes after the first bomb dropped on Ford Island, which was about 5 minutes before they launched their torpedo attack.

Movies like "Pearl Harbor" to the contrary, the first torpedo planes came under fire even with tactical surprise. The Japanese were shocked by the quick American response. Based on that, I gave them pretty much their historical hit rate adjusted for the easier approach on the 110 Dock (and less flak than they got historically from Carrier Row which had more ships in OTL that could bring guns to bear) and just under the historical hit rate for Battleship Row.

The poor Oklahoma was doomed as she was literally the easiest battleship to attack in this timeline. But at least her casualties are going to be far lighter than the historical death toll
 
As the two surviving Val's are flying over Ford City seeking to escape, they blunder into 8 P26 Peashooters of the 72nd Pursuit Squadron and both are quickly shot down. However nervous American gunners, seeing aircraft with fixed landing gear just like the ones that bombed the Neosho open fire on them and 2 Peashooters are shot down in flames, their pilots killed, and the rest are all heavily damaged before they can break north away from the harbor. The 72nd Pursuit is out of the battle.

Daaaaamn...
 
Hard losses to both sides. Having one fighter squadron destroyed by friendly fire and another out of ammo will hurt the US defenses when the 2nd Wave arrives.

Still lots more to come.
 
Go America Go, early yet things can go terribly wrong, but a chance of no Japanese victory disease, whether that turns out to be good or not we will see. How far do you intend to take this? The whole war, or mainly this battle and a summing up of the rest of the war. Whatever you do, a great start will enjoy following this.
 
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