Sir John Valentine Carden Survives. Part 2.

The question is over when they can start driving the Japanese off the island.
Probably especially once the supply lines break fully. That said we can probably guess how that all ends, the Japanese probably won't surrender but will make suicidal attacks.
 
Actually not. The 75 mm HV and the 77 mm both used the case from the 3” 20 cwt AA gun, which was still in production. The 75 mm AA gun, in the context of this discussion was a relatively short run export model from the 30’s.

Artos, would the 3" 20 CWT work as an alternative late '30s tank gun? I'm thinking of an ATL where a very small but advanced South Pacific nation, which builds and modifies Vickers designs under license, builds A9 and A10 developments. One of them would be a "heavy A10", an expanded A10 (they are not burdened by the British rail limits on width, and are only after a small number of vehicles) with a 75mm gun. Design work would start once the basic A9/A10 prototypes are completed, so late in 1936.

I've been thinking of using the 3" 20 CWT as the gun. It would seem to be comfortably powerful enough for 1930s tanks, especially the Japanese ones that are the main concern. It would also offer a reasonable HE load. I assume the barrel would have to be shortened. As the 3" 20CWT had been in production not too long before, the relevant machine tools could have been purchased by the local Vickers plant; the government is concerned about the Japanese threat and would rather be able to produce obsolescent weapons, if needed, than nothing.

The idea of the "A10 heavy" is to have some tanks that will comfortably outmatch anything the Japanese could bring against them, while slightly modified A9s and A10s form the bulk of the tank force.
 
Artos, would the 3" 20 CWT work as an alternative late '30s tank gun?
Probably could, with some modifications. The concern for an A10 type hull might be barrel length. The original is nearly twice the length of the 2 pounder and 400 lbs heavier. And it is only an L45. So cutting it down is possible but you are going to start affecting muzzle velocity a fair bit. But the full length gun would probably be hard to balance on a turret with gun mounted forward and too heavy to maneuver if set back, as in early British tanks.

In other words, you will need to expand it a fair bit or accept quick wear downs on your turret and/or limited space and overwork on your crews. Probably closer to a 20 ton tank.

But yes, if that is done or limitations accepted it would probably be a very useful tank gun for fighting the Japanese.
 
Problem though as with most ideas is production priorities need to be thought on carefully, Britian and the Commonwealth are doing better fewer losses in all services of men, gear and material given North Africa, Crete and the Far East have gone dramatically differently in the British favour.

But the Battle of Atlantic is still going about the same, right now Britian needs to think carefully about what they can and can't do at least until more escorts come online and hunt the Uboats and the USA listens the Canadians and British.
 
Problem though as with most ideas is production priorities need to be thought on carefully, Britian and the Commonwealth are doing better fewer losses in all services of men, gear and material given North Africa, Crete and the Far East have gone dramatically differently in the British favour.

But the Battle of Atlantic is still going about the same, right now Britian needs to think carefully about what they can and can't do at least until more escorts come online and hunt the Uboats and the USA listens the Canadians and British.
The BotA is probably going slightly better for the losses not take in various operation the Mediterranean, and for ships not needing to be assigned to Malta convoys. In addition, since Britain is doing better, cargoes that OTL carried, f.e. M3 Lee/Grant tanks, can now carry other supplies. Those tanks alone amounted to ~25.6K tonnes of cargo.
 
16 February 1942. Muswellbrook, Australia.
16 February 1942. Muswellbrook, Australia.

The Australian Army Ordnance Depot had become a very busy place. Workshops had been opened to prepare tanks for delivery to the various armoured units under construction. In early 1941 there were so few tanks in Australia that the idea of building a large facility to service tanks had seemed almost laughable.

Over the last few days, a series of trains had brought the latest batch of M3 Grant tanks from the docks at Newcastle. These tanks had been the output of the three American factories during the month of December. Fifty-seven had been built by Baldwin Locomotive Works Eddystone, near Philadelphia, Pennsylvania. Thirty-seven from Pullman Standard Car Co. in Hammond, Indiana. Forty-two from Pressed Steel Car Co. in Hegewisch Station (south Chicago, Illinois).

The previous batches of Stuart and Grant tanks that had arrived had been processed in the same way. This began by removing the various efforts to prepare them for a sea journey. Once that had been done, the fitters and mechanics had to check each and every system and nut and bolt. Once all those jobs had been done, the armament artificers fitted the various guns that had been shipped with the tanks. The two fixed mounted .30 calibre machine guns weren’t added, the holes being filled up and the guns being set aside for other uses.

Once the tank was declared fit, it was tested and driven to a holding area. When another train arrived, the tanks were loaded onto the flat cars and then the train departed to Seymour in Victoria where the 2/1 Tank Transporter Company would collect the tanks on their Ford V8 truck and trailers and deliver them to Puckapunyal.

Brigadier John Clarebrough’s 2nd Australian Armoured Brigade’s (2nd AAB) three armoured regiments (2/8th, 2/9th and 2/10th) were excitedly waiting for the tanks to take another step towards operational readiness. Each armoured regiment needed forty-six tanks, so, along with the ten they had on hand already for training, would give them their full quota. Clarebrough had replaced Brigadier William Locke who had trained his men assiduously, getting the tanks would now allow them to put into practice all the theory they had learned.

The tanks were all powered by the Wright 975 Radial engine, which produced 340hp. Like the M3 Light Stuart’s Continental R-670 radial engine, the Australian army was learning that it required a great deal of training, even on the basics. For that reason, at Muswellbrook, there were drafts of mechanics from the Armoured Brigade’s second echelon who would, by helping get the tanks ready for use, would learn the skills they’d need eventually to keep the tanks operational.

In parallel to 1 Armoured Division, the Australian experience in Malaya, and beforehand in North Africa, had led to the decision to establish an Army Tank Brigade to be used in the infantry support role. The Headquarters of 4th Motor Brigade had been re-tasked 3rd Army Tank Brigade at the beginning of January. The 1st, 2nd and 3rd Tank Battalions were all under formation in Gretna NSW, with many of the officers and NCOs on various training programs at Puckapunyal or some of the other training establishments. The Other Ranks were also being instructed in the various skills needed as tank crew. Wireless, gunnery, mechanics, driving were all schools that the Other Ranks had to complete so that each tank crew could, if necessary, cover one another’s roles.

The Jumbuck tank, armed with the 25-pdr, was the tank which the Tank Battalions hoped to be equipped with, but pre-production trials were still being carried out. The Canadian Ram version was further ahead, but they had the advantage of having built Valiant tanks previously. A request from the Australian Government to the British War Office for Infantry Tanks had been approved. Because so much of Valiant production was being shipped to Russia, 180 Vulcan Matilda II tanks, originally meant for Murmansk, were being shipped to Australia, expected to arrive at the beginning of March.

The Armoured Division’s ‘fighting echelon’: six armoured regiments and the support group (recce, armoured car, motor battalions, attached artillery) was usually the focus of attention. These couldn’t move or fight without the B echelon, which consisted of a lengthy list of Intelligence Sections; Field Security; Air Liaison Sections; Engineer Field Park Squadrons and Field Companies; Signallers; the Australian Service Corps’ Brigade and troop moving Companies; Medical Corps’ Field Ambulance and field Hygiene Sections; Ordnance Corps Workshop and Sub Parks; Light Aid Detachments; mobile bath and laundry units; Postal unit; Pay Office, Provost Company; Salvage Unit; Tank Transporter Companies. Two training regiments were running the various schools necessary to have all the recruits learn their trades after they had finished their basic training.

Altogether, the Armoured Division would need almost 11000 fully trained soldiers, the majority of whom had been civilians not that long ago, and almost 3000 vehicles (including 342 tanks). Since the Armoured Division and Tank Brigade were designated for the 2nd Australian Imperial Force, the men were aware that they’d likely be sent overseas as soon as they were ready. With 6 and 8 Infantry Divisions already bloodied against Italians, Germans and Japanese, and 7 Division likely to be at the sharp end soon, getting the Armoured Division ready was amongst the highest priorities of the Australian High Command. Now that the tanks were arriving from America, another step towards that goal had been taken.
 
"15 February 1942. Singapore.

Lieutenant-General Percival’s Chief of Staff, Brigadier Kenneth Torrance, noted that Percival seemed slightly off colour. The GOC Malaya Command explained that he hadn’t slept well the previous night, he’d had a nightmare about walking up a road in a group who were carrying both the union flag and a white flag, surrendering his command to a Japanese general. He’s woken up covered in sweat and the dream had been so real he couldn’t get back to sleep." Copied from post #6097.

"Timelines twist and turn and sometimes they almost, but not quite, touch each other." An older post by @Winestu from fester's Keynes's Cruisers story.

A beguiling idea that, of multiverses almost but not quite overlapping. Philip K. Dick would occasionally add these type of spooky events to his novels too.
 
The Allies don't have submarines they have submersibles like everyone else and unless they are lucky enough to have a carrier come to them they can't decide a naval engagement.
only the dutch have a few subs with snorkels
Your not wrong in the grand scheme of things the Philippines is expendable, while places like Malaya and the Dutch East Indies given they have oil need to be kept out of the Japanese’s hands.
and as long the japanese are still being actively fought in borneo they cannot bring the sabotaged oilwells back online (otl it took them a year)
 
I like seeing my old hometown of Hammond, Indiana make it into a story. One of the local highways, Rt. 30, wasn’t paved yet, and was used for testing the Pullman tanks before they were shipped out. After they came off the line they were driven back and forth on the road a couple times and given the seal of approval.
 
were loaded onto the flat cars and then the train departed to Seymour in Victoria
To be transshipped at the break of gauge at the Victorian border.

At this time Australia was heavily dependent on coastal shipping and coastal cargos on all stops ships. Australia’s highways were an interesting fourth alternative and the railways were state economic affairs designed largely to haul cargo to dock.

I’m not even sure if the Grant will make the loading gauge to Sydney.
 
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