British North America could, with privation, probably support a total of 100,000 men in the field, but just like the Confederacy did not have its 300,000 men massed in a single army, British North America could not had its 100,00 men massed in a single army. It's basic logistics.
Actually, the Province of Canada could support about 100,000 in the field with privation. The Maritimes could probably support another 50,000 or so because their militia is both well trained and active.
Also, how are you dealing with the fact that for the sedentary militia "the period of active service was
limited to six months" and that in the 50 years leading up to the Trent Incident, "Little attempt had been made to develop or improve it; no provision was made for arming, clothing, or paying it; and
the annual muster had become little more than a civilian enrolment, inconvenient because of the interruption of business, and sometimes excessively convivial."
By not expecting the militia to fight in the open field - that's the job of the British long service regulars - and by having the militia train continuously for about four months before their first use.
We're not talking about OTL, we're talking about TTL, where the only response that you show the Union makes to the breaking off of diplomatic relations and possible war is for the Union to call up another 200,000 troops.
If you can provide examples of OTL Union planning to this effect, then I'll be happy to factor it in. The Union doesn't have much time between the PoD and the British declaration of war.
You show us nothing about the Union doing anything to increase domestic production of arms or ammunition.
That's because they'd already ordered well over half a million rifles domestically - of those well over half are never delivered at all in the entire ACW. The US is tapped out for domestic arms production.
ED: found the numbers.
In the period to July 1862, after sixteen months of war, Springfield Armoury had produced 109,810 rifles.[6] The private sector, from which the government had ordered 854,000 Springfield rifles by the end of 1861, fell lamentably short of matching this performance.[7] By 30 June 1862, they had delivered only 14,267 Springfield rifles: the total of all weapons received by the Federal government from private firms, including ‘common sportsman’s rifles’ and smoothbore muskets, was 30,788.[8] Of the 854,000 weapons contracted for by January 1862, only 205,000 would be delivered before the end of the war in April 1865.[9]
You show us nothing about the Union trying to find new foreign sources of arms and ammunition.
But they're already purchasing everything they can
- "not a gun more could be purchased if all the states were in the market and the price doubled".
Your claim that "All their iron comes from Britain" is wrong -
in 1860 the US produced 821,000 tons of iron and imported 395,000.
Sorry, maybe I wasn't clear. All their
gun iron comes from Marshall and Mills ironworks in Sheffield.
This is one of my main sources.
ED: here's the big quote:
Most damningly, the Springfield Armoury – the only government armoury remaining to the North, responsible for 89% of the modern weapons manufactured to 30 June 1862 – obtained its iron from England.[107]
Although much more publicity is given to the adoption of American machinery by the Royal Small Arms Factory at Enfield, the Springfield Armoury had been envious of British barrel-manufacturing techniques long before the British commission made their inspection. In America, barrels were formed and welded under a trip hammer, a laborious process which produced barrels which frequently failed under proof, while British barrels welded by rolling were quicker to produce and more reliable.[108] Attempts to roll-weld barrels using American machinery and iron failed: it was only in 1858, when the Springfield Armoury bought an English rolling mill, 50 tons of English iron and a Birmingham operative by the name of William Onions to supervise the work, that the Armoury successfully rolled its first barrels.[109] Onions remained the only trained barrel-roller at Springfield until the outbreak of the Civil War, when necessity led to the importation of four more machines and the training of other workers in the art. But English iron was as important as English machines to this roll-welding technique: only the iron produced by a single English firm was sufficiently homogeneous, contained the right quantity of phosphorous, and possessed a ‘fine, uniform distribution of slag particles’ with ‘relatively low liquidus temperature’.[110] As a biography of one of the leading American industrialists makes clear:
no first-class gun-metal was available in the United States. The supply of such metal had to be imported at high cost from Europe. A little came from Scandinavia, but most of it from Great Britain… during months when the British attitude became more and more alarming, the United States remained dependent on Marshall & Mills. The British ironmasters had the formula; the Americas did not.[111]
Put simply, at the time of the Trent Affair the United States could not produce a modern musket without British assistance. This is why the statistics for gun-barrel exports are so high in early 1863: after Union industry had tooled up to produce locks and stocks, it still needed British barrels. It was only after Hewitt travelled to Staffordshire on a personal project of industrial espionage, pleading with off-the-clock Marshall and Mills workmen in a local pub to give him the secret of making their iron, that the United States was capable of producing its own gun-barrels.[112] At the end of 1863, Edwin Stanton proclaimed proudly:
Among the arts thus improved is the manufacture of wrought-iron, now rivalling the finest qualities of the iron of Sweden, Norway, and England… This country until the present year has relied upon those countries for material to make gun-barrels, bridle bits, car-wheel tires, and other articles requiring iron of finest quality[113]
Not only did Stanton disguise how this improvement had come about, but his confident statement disguised the significant flaws Trenton iron possessed. By February 1864, Springfield was complaining about the uneven quality of the new product; Remington ‘found inspection losses on contract barrels so great as to make it necessary either to abandon this iron or ask that the inspection be made less rigorous.’[114] Even after Trenton began to produce iron, British exports remained significant. They were almost the sole source of steel for gun barrels, as well as producing the majority of files required to finish domestic guns.[115]
A Trent War would have given the Union two choices. Its first choice would have been to let its arms factories fall silent while it attempted to stumble upon the secret of marking Marshall iron. However, as the complaints of 1864 show, even stealing the secret from Britain proved to be no panacea. Its second choice would have been to scrap all its expensively acquired barrel-rolling machinery and revert to trip-hammers, a decision which would have meant a temporary stoppage of business for the Springfield Armoury and probably a permanent one for several private manufacturers who had invested heavily in plant and machinery. However, trip-hammering would have produced an inferior product, dramatically reducing the number of barrels which passed proof, and in turn increasing the cost and decreasing the quantity of Springfields available. More critically, it was the shortage and poor quality of domestic iron used for trip-hammered barrels that had persuaded the government to move towards roll-welding in the first place.[116] If the supply had been inadequate pre-war, it was hardly likely to be sufficient to meet the Union’s threefold new challenge: fighting an additional foe in Britain, as well as a better-armed Confederacy, while simultaneously stepping-up domestic production to replace a sizeable proportion of the European imports on which it historically relied.
Your claim that the Union had no troops nor arms that they could move to defend the Canadian border is also clearly wrong, at a minimum there are the 15,000 troops of the Burnside Expedition which you previously did not mention being cancelled, plus forces from the Department of New England and the Department of New York.
I did not make that claim; I said the US had no
plans for more than a few regiments. They can of course send troops, but they'll have to organize this largely post-PoD. (This they do, in my TL - they start running into force allocation problems, though.)
You show us nothing about the Union trying to upgrade harbor defenses along the Atlantic coast or the Great Lakes with greater threat of war, more would have been done more than in OTL, even if only a little.
But there's only so many guns to go around - in many cases I use fort armament states as of
OTL late 1862, not OTL Trent. In the case of Boston I assume that enough guns arrive to completely arm the forts; this is a rule I use generally, except with Fort Delaware and Fort Monroe (both of which are hit quite early on and in the case of Fort Delaware I use the late-1862 case).
In effect I assume that the Union
does do this upgrading. They just can't upgrade with weapons that can actually stop a determined US attack (the 15" Rodman and 8" Parrott, of which - as of March 1862 OTL - one each exist.)
As for the Great Lakes, again I assume the Union does the upgrading, and in most cases the British do not challenge the defences up here except with ironclads. (Though I don't bother detailing the gunboat war, which is essentially about even until British ironclads show up.)
The Library of Congress is a research library, not an advisory board.
Perhaps so, but it's Lincoln's OTL reaction to when McClellan had Typhoid fever:
this quote from Russel H. Beatie's second volume on the Army of the Potomac, dealing with the period when McClellan was down with typhoid:
'The president had relied on Scott. He was gone. Now, he relied on McClellan; but he was incapacitated. He turned to the Library of Congress- it would always respond- for standard texts on strategy and military affairs, including Halleck's
Elements of Military Art and Science.' (page 433; note 13 cites Miers, Lincoln Day by Day, January 8 1862)
So in January 1862, the President of the United States was reading a book saying that in the event of war with Canada
it was vital to attack Montreal.
And I'd expect the Union Navy to at least alert the Naval Squadrons that war is possible
Either the Union abandons the blockade or they do not. If they don't it's largely as I displayed it; if they do before they get confirmation it's war, then they would have done so in OTL (IMO).
True, but that's not an outright rejection, so I'd expect at least some debate unless the British Cabinet was thoroughly convinced that the law was on the Union's side and thus was sure to win any arbitration.
The British ultimatum made clear that
any reaction except full compliance would mean war.
The British planned to attack US harbors, but you were claiming they were also planning on sending ironclads through the Welland Canal and that 3 days after declaring war, the British had completed and approved plans for ironclads that could fit through the Welland canal using armor originally designed for HMS Warrior.
No, I'm claiming that they were planning on sending ironclads through the Welland canal and that they had plans to
send tenders to the various shipbuilders. That's pretty much how the British operated.
As for using the Warrior armour, it's the simple option - Warrior only used A1 quality plate and a lot of plate batches were rejected. Using the rejected batches on ships is perfectly sensible.
And the
Aetna class - "
At 200 yards such vessels could not resist a 68-pounder with a 16 lb charge." Any ironnclad that could fit through the Welland Canal would be inferior to the Monitor in speed, maneuverability, armament, armor, and seaworthiness.
The
Aetna class plates were hammered wrought iron - the
Warrior plates (which I propose using) were rolled wrought iron, greatly superior. As for the 16 lb charge on the 68 pounder, you're talking about perhaps the most powerful armour piercing gun in the world at the time - the original design for
Monitor could not resist it when it used steel shot, the energy density in foot-tons per inch of circumference is too great for 8" cast iron laminate (such as on
Monitor).
For comparison, the 68 pounder with wrought iron shot (standard issue) penetrates four inches of unbacked rolled wrought iron at 150-250 yards using standard service charges of 16 lbs; the 11" with wrought iron shot (
not standard Union issue and in fact considered dangerous) penetrates more like 3 inches at best, even using the late-war 20 lb charge instead of the 1862-era 15 lb charge.
When fully backed, 4.5" plate of
Warrior's type resists at around 60 foot-tons per inch.
So let's take the Wellandmax design that I used Springsharp for, the
Zodiac class. I'll be the first to say the armour is extremely heavy (141 tons of the total 878 tons displacement) and the form is very boxy to get maximum displacement for the underwater dimensions, but it can mount 8 68 pounders total (half that of the
Aetna class) and manage a speed of about five knots. (They'd need a tow upriver, but that's fine.)
Slower than Monitor? Yes. Less manoeuverable? Debatable, actually - depends on the water depth, and
Monitor was very clumsy. Armanent? Superior to Monitor, four 68 pounders per broadside beats two 11" turret guns owing to energy, energy density, speed of reloading and volume of fire. Amour? Superior to Monitor again -
Monitor's armour was 5% silica and was essentially cast-iron, and was also laminate (the worst kind) and unbacked (which is bad for the resistance of the armour).
Seaworthy? The
Terror crossed the Atlantic in a fighting condition, and these ones could be caulked to be gotten across (as was done in the Crimea for the Aetna class, possibly unnecessarily). They all had higher draft than the
Monitor, and did not sink under tow as she did.
Incidentally, the source you quote is very much simplifying things. From DK Brown (
Before the Ironclad) we get the actual account of the firing test, where:
The next trials, in October and November 1858, involved firing against the armour of two of the floating batteries, Erebus with an iron hull and Meteor with a wooden hull, and was intended to compare the effectiveness of the different materials in resisting the impact of shot. The Erebus had iron armour of 4in nominal thickness (probably rolled too thinly) over 5 ½ in of oak. Its effectiveness was enhanced by sloping the side at 30 degrees to the vertical. Behind this was a ⅝ in iron plate supported on iron frames. (From the drawings, these were 4 ½ in deep, probably angle bars with 3in x 3in backing angle in a ‘Z’ shape.)
The firing ship was again the Snapper, at 400yds, in the ‘1,200yd’ creek at Fareham. The aiming point was in line with the main mast, between the ports and 2ft above the waterline. The first hit was from a 32lb shot with a 10lb charge, which caused a dent and a few small cracks. A 68lb shot with a 16lb charge broke out a piece 11in x 12in, but did not penetrate. The side was bulged in over an area 3 ½ ft x 3ft to a depth of 1 ¼ in. The second 68lb shot broke the lower corner of the plate, then broke up, and the fragment pierced the side. The inner skin was torn over an area of 2ft x 14in, a beam knee was broken and driven in 2ft and two frames were cracked. Many rivets and bolts were broken and 700 pieces of iron were picked up on the gun deck.
The Meteor fared much better. She also had a nominal 4in of iron backed by 6in oak. Behind this, the timbers were 10in deep, 4in apart, and filled in solid with another layer of oak behind this, 9in thick at the top, thinning to 4in at the bottom. The armour was attached by bolts with their heads countersunk into the armour and passing right through the side and lining, fastened by washers and nuts inside. Snapper’s first shot was from a 32pdr causing no significant damage. Three 68lb shot, one of which was of wrought iron, caused some cracking and a few pieces of armour were broken off. The shots themselves were broken but nothing penetrated the side. Two or three bolts were ‘started’, but did not break. The next day began with two 32lb shot which caused little damage. Two 68lb shot caused more extensive cracking of the armour and broke a bolt. The shots broke up and did not penetrate. Finally, a sand-filled shell was fired from the 68pdr with a 12lb charge at a range of 300yds, which did no harm.
Brown , David K. Before the Ironclad: Warship Design and Development 1815-1860 (Kindle Locations 5704-5721). Seaforth Publishing. Kindle Edition.
From the foregoing experiments, the advantage of the Meteor class of battery over the Erebus has been fully established. Throughout the experiments with the former, it does not appear that the damage inboard would at any time have proved seriously inconvenient to the men fighting the guns; whereas with the latter vessel, not only did the shot on one occasion penetrate her side, scattering the fragments over the gun deck, but every hit, not penetrating, caused bolt heads and nuts to be scattered about the deck, doing apparently as much damage as a volley of grapeshot.
Brown , David K. Before the Ironclad: Warship Design and Development 1815-1860 (Kindle Locations 5722-5726). Seaforth Publishing. Kindle Edition.
Note that the
Meteor (with wooden backing, as did
Aetna)
was indeed able to resist 68 pounder shots fired with 16lb charge, with 0 penetrations out of 5 shots fired. The trials showed conclusively that
backing is very important for an ironclad of the day;
Warrior and
Aetna had sufficient backing,
Erebus and
Monitor did not. (If you read the TL, you'll see that I describe this very problem - spall - extensively.)
After the tower had been hit 18 times over the course of the first day, 'The tower was but superficially injured".
Yes, because the tower is ten feet thick. The masonry of US forts tended to be 4-6 feet thick.
What I'm talking about happening here to the Union forts is essentially what happened to Fort Pulaski - just with British guns instead of Union, and with guns with a much larger bursting charge.