Keynes' Cruisers

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According to Nav weaps the 24" Mk1 torpedo had a range of 30,000 at 30 knots.

The Japanese had horrible problems with their Long Lance torpedo development. At first they used oil based lubricants which caused them to blow up when the oil got too hot, which isn't all that hot in a 100% oxygen atmosphere.
 
Depends whether the RN trials showed the potential for extremely long ranges for the torpedoes
The potential was there, they just don't seem to have been terribly interested in achieving them. The technologies available were about on a par - the whole reason the British gave up on oxygen-enriched torpedoes, for instance, was that the burner cycle engine had become available with around 30% of the fuel/air consumption of a wet heater engine (which I think the Long Lance had fitted). So essentially the burner cycle and pure oxygen torpedoes had the same range per unit volume of oxidant - the British just decided to concentrate on speed and warhead size within a convenient package, while the Japanese built very big torpedoes to give extremely long range.
 
I'm sure there's a TL in which there is a USS Harry Flashman.

If there isn't, there should be.
I'd be amazed if there isn't - Harper's Ferrry participant, Medal of Honour winner, survivor of Little Big Horn, and of course active in the underground railway in the antebellum South. His service with the AoNV in 1863 will no doubt be overlooked.
 
Until guided or homing torpedoes come along, there really isn't much point in 30,000yd range as the number of hits will be very small (as OTL showed).
Now it may look better if you shotgun all your tubes against a big target like the enemy battle fleetin a decicive battle. Sadly for the IJN, their opponents weren't cooperating with the idea.

The big warhead is nice, but damage doesnt scale with warhead size. There is a good argument that 2 21" torpedoes are better than 1 24", which is the route everyone elses navy went down. Let alone the issue that your oxygen plant and torpedoes are a major fire and explosion hazard.
 
I don't know where Rooks is nor what he will or will not be doing in the future. I have not given his outcomes any thought.

As far as ships; most of Force Y is in the yard for 2-20 days. Dragon needs a decent amount of work but could fight on 12 hours notice to raise steam.

Force Z
POW needs to refuel and reload
Mauritius, Kenya, Liverpool refuel, reload
Force Z destroyers --- 1 needs 10-15 days in the yard due to shell damage, the other is available on 12 hours notice

Boise, Norfolk need to refuel and reload. Boise lost a single 5" turret due to combat damage, one of her radars is now finicky due to shell damage
4 modern destroyers --- need to refuel and reload, 2 need 5-15 days in yard to come back to 95% capabity due to shell damage but they are available on 12 hours notice

Marblehead is now available, 4 stackers of DesDiv 58 are available.

Rooks was a hard charging knowledgeable, with an excellence in gunnery and seamanship. OTL had he survived and the Houston made it to safety, he would be on the very short list for a flag.
 
He would have been interesting indeed at 1st Guadalcanal (to name but one example)

Assuming he even got sent there. A lot of those guys who got combat experience early were sent back to the US and put in jobs involving the unglamorous but all important organize, man, train, and equip functions.
 
Yes, Rooks would have been different in that Commnand OTL. If he survived here, perhaps Admiral Rooks instead of Admiral Crutchley, commanding the cruiser screen for the Battle of Savo Island.
Would Rooks have managed to avert the disaster of losing three New Orleans-class heavy cruisers? And the sinking scuttling of a County-class as well?

IIRC, it was Astoria, Quincy, Vincennes and Canberra.
 
Would Rooks have managed to avert the disaster of losing three New Orleans-class heavy cruisers? And the sinking scuttling of a County-class as well?

IIRC, it was Astoria, Quincy, Vincennes and Canberra.

I think his experiences in a surface action , ittl, would have him more situationally aware; and when leaving the area to meet his ground force and cargo Force commanders. IMO Rooks would have let the cruiser comnnanders, know that he was going to be out of the area, and appointed a temporary commander for the escort group.
 
Story 0939
December 10, 1941 Vigan, Luzon 1432 Manila time

The surviving P-35s of the 34th Pursuit Squadron swept in low over the beach just west of the city of Vigan. The obsolete but modern looking fighters were out of their element but this was the best use for them. They could not fight the modern Japanese fighters, they were at best an even match against Claudes and Nates and dogmeat against anything newer. Their wet wing, and the lack of armor made ground attack an extremely risky but non-suicidal proposition.

Each had been armed with a pair of one hundred pound bombs and a full load of machine gun ammunition. They had taken off an hour earlier from Nichols Field after reports from the 21st Division that the Japanese were landing at Vigan. There had been talk about coordinating the P-35s with a sortie by Flying Fortresses operating out of Del Monte, but the big, modern bombers would be at least another three hours away. The Second Battalion of the 21st Infantry Regiment was fighting hard, but they were outnumbered and outgunned. The commander of the 21st Division had asked for any and all support as soon as possible so that the battalion could break contact and retreat south. The 34th Squadron was the only support available.

So they flew low, fast and out of their element. The first flight of fighter bombers attempted to loft bomb a large freighter. The bombs missed by so much that the freighter captain did not know he was targeted. However the explosions throwing up sea water alerted the Japanese flotilla that there were enemy bombers nearby and the next flight saw a cacophony of flak reach out. The leader was aiming for an old World War 1 destroyer that had been converted into a fast transport. His left wing was clipped by 25mm fire and the instability of the damage combined with the 240 mph approach at 150 feet left no room for him to recover. The second plane strafed the old destroyer and placed both bombs off the port bow. The small explosive charges sprayed the exposed crew with water but no casualties. The third and fourth aircraft in the second flight were disrupting by the increasingly heavy flak. Three of the four bombs went wide by several hundred yards, the last bomb failed to release.

The last flight of fighters bore in on the 630 ton minesweeper W-10. She was exposed out in front of the main body. Her three heavy guns banged away at the fighters, but she could only bring a single 25mm mount to bear. The American fighters dipped their noses and started to strafe the water leading up to her in order to gain an appreciation of the angles needed for the bomb release. The first bomb missed short, while the next three bombs penetrated her deck. The first bomb crashed through her engineering space before detonating, killing all power to the ship, while the second bomb exploded just beneath her bridge, while the final bomb penetrating the deck over the magazine for the 4.7 inch guns. Any one of these hits would have been devastating, but all three soon led to a series of uncontrolled explosions as her depth charges cooked off.

The surviving American fighters rallied ten miles north of the Vigan beachhead, and curved back around. They strafed the rear of the Japanese positions, killing half a dozen men manning a section of mortars and then escaping to the south. The material effects of the raid were not significant, but the 350 defenders saw that they had air cover that could inflict the same harm on their enemy that their enemy had been inflicting on them.

Two companies held a line just east of town for three hours after the airstrike while the last company and a group of mining engineers prepared the bridge over the Lagben River for demolition. Once the demolition wires were prepared, the two holding companies rapidly leapfrogged in retreat to the bridge. A company would run two hundred yards and establish a new cover position before the other company ran four hundred yards. The first company would use their three BARs and two Lewis guns to keep the Japanese pursuit honest until the second company was ready to cover their retreat.

By dusk, the battalion had crossed the bridge in reasonably good order with lightly wounded men already on horses being lead to the rear and severely wounded men in three of the battalion's twelve trucks. The company commander of the third company was the last man across the bridge as he ran through the rain of shells that from Japanese artillery that had been harassing the retreat for the past hour. As soon as he was fifty yards on the far bank, the mining engineers detonated the charges on the bridge. Three hundred pounds of dynamite severed the steel supports from the piers and another hundred pounds of dynamite created a clean break in the middle span.

The Japanese Army would be able to repair that bridge but it would take at least two days for it to be sufficiently stable to support anything heavier than a large infantryman.
 
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Story 0940

December 10, 1941 1400 Rangoon


“I’m sorry General, you need surgery to correct the previous surgery for your anal fissures. The last surgeon failed to clean up the entire impacted area. We can schedule you for the end of the week”

“Doctor, how long will I be hospitalized”

“Typical recovery is several weeks of hospitalization and then light duty for another month”

Major General Smyth paused for a moment. His Division, the 17th Indian Division, had just started to arrive in Rangoon over the past several days. During the entire time, his stomach was off and every step he took was painful. His chief of staff and his executive officer both encouraged him to see a doctor this morning as he had not been able to leave the water closet for an hour before the morning briefing.

If he entered the hospital, he would be leaving the war. A hero leaving the war because he could not shit right. Yet, he could barely think as his mind was focused on defecation.

“Doctor, let me have a few days to make arrangements for my division and responsibilites but please schedule me for surgery early next week”

With that, the process to find a new commander for the Black Cats started.
 
December 10, 1941 1400 Rangoon

“I’m sorry General, you need surgery to correct the previous surgery for your anal fissures. The last surgeon failed to clean up the entire impacted area. We can schedule you for the end of the week”

“Doctor, how long will I be hospitalized”

“Typical recovery is several weeks of hospitalization and then light duty for another month”

Major General Smyth paused for a moment. His Division, the 17th Indian Division, had just started to arrive in Rangoon over the past several days. During the entire time, his stomach was off and every step he took was painful. His chief of staff and his executive officer both encouraged him to see a doctor this morning as he had not been able to leave the water closet for an hour before the morning briefing.

If he entered the hospital, he would be leaving the war. A hero leaving the war because he could not shit right. Yet, he could barely think as his mind was focused on defecation.

“Doctor, let me have a few days to make arrangements for my division and responsibilites but please schedule me for surgery early next week”

With that, the process to find a new commander for the Black Cats started.

I see what you are pushing for here but General Hutton (and to some extent the Japanese) was at fault for the debacle at Bilin River and the subsequant Sitting Bridge disaster as he did not allow Smyth to retreat across the Bridge in a timely fashion as Smyth realised (as the commander on the ground) that Bilin 'river' was in fact a ditch and as such posed little or nothing in the way of an obstacle to the 2 assaulting Japanese Divisions but he was denied permission to withdraw by Hutton until it was far too late.
 
Story 0941 --- 1st Battle of Wake Island
December 11, 1941 0330 Wake Island

Every Marine on the island had been awake for the past three hours. Dauntlesses had detected the invasion convoy on the afternoon of the 9th. The patrol planes had attacked the convoy three times with 500 pound bombs. A single patrol boat had been damaged from near misses and after the landing party sailors had been transferred to other ships, he turned back to Roi-Namur.

Nell bombers had attacked the island twice more. The first raid was a high level raid at 22,000 feet to avoid the Marine fighters. That was successful, as only one bomber was shot down but the bombs moved sand and little else. The second raid was a low level attack by 12 Nells. They had succeeded in bombing the primary dispersal area, killing thirty Marine maintainers and destroying a pair of Wildcats and a trio of Dauntlesses on the ground. However the CAP descended on them and harried them out to sea. Only six bombers would ever fly again.

The invasion force had zigged and zagged. It was covered by two heavy cruisers and a trio of light cruisers. The half dozen transports held 1,500 men for the landing parties. Some of the men had been assigned to the Guam invasion but their landing team was re-allocated to Wake as pre-war overflights had shown that the Americans were evacuating Guam even as Wake was strengthened.

Major Devereux had planned to ambush any invasion force. He was confident that his Marines could defeat a landing but it would be far easier to prevent a landing.

The 8 inch guns had been well hidden on the island. They were always undercover when any civilian was within 50 miles of the island and twelve large and obvious fake gun barrels had been poorly emplaced at various locations around the island. The heavy guns were protecting the main lagoon entrance and the south beach. The lighter 5 inch 51 caliber guns were in heavily prepared positions at the points of Wake’s triangle shape. Each battery had its own director and each director position was tied into three redundant telephone lines. The rest of the garrison was either in reinforced concrete bunkers or in fighting positions with plenty of overhead protection.

The guns were loaded, the crews adjusting the range finders as the Japanese warships crept into position, first 10,000 yards away where the pair of heavy cruisers began to slowly steam parallel to the southwest shore. The rest of the force then they moved to 7,000 yards away before the light cruisers broke off from the destroyers and patrol boats, and then 4,500 yards away.

No one on either side had fired as the small dark blobs on the horizon became clearly defined occlusions of light that continued to approach the island. Guns tracked each their targets. The heavy cruisers were loading a mix of high explosive and semi-armor piercing shells for a hurricane bombardment that was scheduled to land just minutes before the first assault wave should be approaching the shingle. The American guns were focused on the nearer ships. As the light cruisers moved closer, the heavy eight inch guns slowly shifted to track their targets.

“Fire, fire, fire” came across the intercoms in each battery’s operation chamber. The voice was slightly high pitched, but sure and confident that they could now defend themselves. Within a minute, the coastal defense batteries of Wake opened fire. Batteries L and K, each with two five inch guns, concentrated on a destroyer apiece. Their first rounds were wild but corrections were being shouted as soon as splashes were seen.

Battery Boxboro, with two eight inch guns from USS Lexington, had been tracking the light cruiser Tatsuta. The Japanese warships were surprised as they believed their aviators claims that the defenses of Wake Island had been destroyed despite the heavy bomber losses. Battery Acton had no nearby targets, so the two guns lofted shells at the heavy cruiser Kinugasa. The last five inch battery was silent as no ships were within their field of fire.

Within minutes, a light cruiser and a pair of destroyers were sinking. The light cruiser had split in two when a pair of 8 inch shells penetrated the thin armor that boxed her forward magazine. One destroyer was flooding from a half dozen hits. Her engineers were trying to contain the damage and may have succeeded until she backed into a contact mine. Aboard Hayate, fires consumed her. Flames licked her superstructure. Her depth charges were cast overboard without arming. Shells for her guns were either fired rapidly at barely seen American positions or thrown into the sea. Suddenly, the western sky lit up as the oxygen tanks near the torpedo tubes overheated and added to the fires. American defenders could faintly hear the screams of burning men from two miles away.

Forty one minutes after the first shell was fired, the invasion force had turned around having lost a light cruiser and a pair of destroyers and suffering modest damage to a heavy cruiser and a trio of transports.
 
I see what you are pushing for here but General Hutton (and to some extent the Japanese) was at fault for the debacle at Bilin River and the subsequant Sitting Bridge disaster as he did not allow Smyth to retreat across the Bridge in a timely fashion as Smyth realised (as the commander on the ground) that Bilin 'river' was in fact a ditch and as such posed little or nothing in the way of an obstacle to the 2 assaulting Japanese Divisions but he was denied permission to withdraw by Hutton until it was far too late.
That might still happen... but the butterfly is that the supply of competent senior officers for the Commonwealth is far higher in TTL than OTL so Smyth was far more willing to take care of himself.
 
December 11, 1941 0330 Wake Island

Every Marine on the island had been awake for the past three hours. Dauntlesses had detected the invasion convoy on the afternoon of the 9th. The patrol planes had attacked the convoy three times with 500 pound bombs. A single patrol boat had been damaged from near misses and after the landing party sailors had been transferred to other ships, he turned back to Roi-Namur.

Nell bombers had attacked the island twice more. The first raid was a high level raid at 22,000 feet to avoid the Marine fighters. That was successful, as only one bomber was shot down but the bombs moved sand and little else. The second raid was a low level attack by 12 Nells. They had succeeded in bombing the primary dispersal area, killing thirty Marine maintainers and destroying a pair of Wildcats and a trio of Dauntlesses on the ground. However the CAP descended on them and harried them out to sea. Only six bombers would ever fly again.

The invasion force had zigged and zagged. It was covered by two heavy cruisers and a trio of light cruisers. The half dozen transports held 1,500 men for the landing parties. Some of the men had been assigned to the Guam invasion but their landing team was re-allocated to Wake as pre-war overflights had shown that the Americans were evacuating Guam even as Wake was strengthened.

Major Devereux had planned to ambush any invasion force. He was confident that his Marines could defeat a landing but it would be far easier to prevent a landing.

The 8 inch guns had been well hidden on the island. They were always undercover when any civilian was within 50 miles of the island and twelve large and obvious fake gun barrels had been poorly emplaced at various locations around the island. The heavy guns were protecting the main lagoon entrance and the south beach. The lighter 5 inch 51 caliber guns were in heavily prepared positions at the points of Wake’s triangle shape. Each battery had its own director and each director position was tied into three redundant telephone lines. The rest of the garrison was either in reinforced concrete bunkers or in fighting positions with plenty of overhead protection.

The guns were loaded, the crews adjusting the range finders as the Japanese warships crept into position, first 10,000 yards away where the pair of heavy cruisers began to slowly steam parallel to the southwest shore. The rest of the force then they moved to 7,000 yards away before the light cruisers broke off from the destroyers and patrol boats, and then 4,500 yards away.

No one on either side had fired as the small dark blobs on the horizon became clearly defined occlusions of light that continued to approach the island. Guns tracked each their targets. The heavy cruisers were loading a mix of high explosive and semi-armor piercing shells for a hurricane bombardment that was scheduled to land just minutes before the first assault wave should be approaching the shingle. The American guns were focused on the nearer ships. As the light cruisers moved closer, the heavy eight inch guns slowly shifted to track their targets.

“Fire, fire, fire” came across the intercoms in each battery’s operation chamber. The voice was slightly high pitched, but sure and confident that they could now defend themselves. Within a minute, the coastal defense batteries of Wake opened fire. Batteries L and K, each with two five inch guns, concentrated on a destroyer apiece. Their first rounds were wild but corrections were being shouted as soon as splashes were seen.

Battery Boxboro, with two eight inch guns from USS Lexington, had been tracking the light cruiser Tatsuta. The Japanese warships were surprised as they believed their aviators claims that the defenses of Wake Island had been destroyed despite the heavy bomber losses. Battery Acton had no nearby targets, so the two guns lofted shells at the heavy cruiser Kinugasa. The last five inch battery was silent as no ships were within their field of fire.

Within minutes, a light cruiser and a pair of destroyers were sinking. The light cruiser had split in two when a pair of 8 inch shells penetrated the thin armor that boxed her forward magazine. One destroyer was flooding from a half dozen hits. Her engineers were trying to contain the damage and may have succeeded until she backed into a contact mine. Aboard Hayate, fires consumed her. Flames licked her superstructure. Her depth charges were cast overboard without arming. Shells for her guns were either fired rapidly at barely seen American positions or thrown into the sea. Suddenly, the western sky lit up as the oxygen tanks near the torpedo tubes overheated and added to the fires. American defenders could faintly hear the screams of burning men from two miles away.

Forty one minutes after the first shell was fired, the invasion force had turned around having lost a light cruiser and a pair of destroyers and suffering modest damage to a heavy cruiser and a trio of transports.

So same overall result with heavier IJN losses. Those destroyer losses will hurt but the light Cruiser going too along with a Heavy in dock for a period will help empty the locker at a very crucial point. In the long term losing those transports is going to be one of the most significant losses, they already had a crucial shortfall in logistics capacity and this will make it worse sooner.
 
It seems that the Japanese send the Aoba-class heavy cruisers Aoba and Kinugasa, the Tenryu-class light cruisers Tenryu and Tatsuta and the Yubari-class light cruiser Yubari, plus the Mutsuki class destroyers Mutsuki, Yayoi and Kisaragi and Kamikaze-class destroyers Hayate, Oite and Asanagi to the reinforced Wake Island. It seems one of the two ex-Momi-class destroyers coverted to Patrol Boats, either PB31 or PB32 was hit and damaged.

And it seemes the Japanese ships and aviators never knew about the shore guns...
 
Story 0942
December 10, 1941 North Atlantic

A single Canadian flown Catalina circled the convoy. The amphibian had replaced a squadron mate an hour earlier and would be covering the slow merchant convoy until dark. Forty seven fat hulled and slow ships carrying food, fuel, and things that went boom zigged and zagged across the ocean. A single modern American destroyer as well as an two four stackers were the primary escorts. A pair of Altoona class gunboats, an armed yacht and a single Coast Guard cutter completed the escort group. They would carry the convoy to the mid-ocean hand-off where a Canadian group of destroyers, sloops and corvettes would proceed to usher the ships to Liverpool.

As the ships pushed forward, a single U-boat waited. His captain had maneuvered underwater for hours, using up some of his precious battery life to get to the position for a shot if the ships went the right way for him. Four torpedoes entered the water and four ran true. Even as the U-boat went past 200 feet and his screws turned for a burst of speed, the four torpedoes hit. USS Lynchburg, the second Altoona class austere escort built, had been hit solidly in the bow and beneath her stacks. Her crew scrambled and half were able to enter a boat or the water before her back broke and she went under in seven minutes. A bulk carrier hauling paper, ore and powdered milk broke in half and sank within the hour. The yacht, the convoy's rescue ship hurried through the broken convoy to pull freezing men out of the hypothermia inducing water as quickly as she could as the other escorts raced down the torpedo tracks in an unsuccessful hunt.

The convoy continued east at a steady seven knots.
 
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