3 January
First tranche of Canadian militia officially completes mobilization. 38,000 rank and file (>40,000 All Ranks) are mobilized, in addition to the 5,000 Class A active militia and additional newly raised volunteers. These troops are all armed with Enfield rifle-muskets, and begin drill and target practice with training from NCOs of the 30th and 47th Foot.
At about the same date, the US begin calling up additional volunteers to form into a field army in case it is necessary to invade Canada. The projections are for ~200,000 troops, though there are significant concerns about the number of small arms available - it was only a month ago that Cameron asked Northern governers not to send any more regiments unless called for (due to the shortage of small arms; most regments thus raised have been armed with smoothbores rather than rifles) - and about paying for these additional soldiers, since the crisis has already caused the banks of the Union to suspend specie payments.
How many troops are you planning on cramming into Canada? The Confederacy, with some privation, managed about 300,000 troops present, with their biggest army peaking at about 90,000 men and it's second biggest at about 60,000. Canada had roughly 1/3rd of the population the Confederates, so we can expect it to be able to support one army of 30,000 and second of 20,000 in the field.
All the US does is call up an additional 200,000 volunteers? They do nothing to increase domestic production of arms and ammunition? They do nothing to find new foreign sources of arms and ammunition? They move neither troops nor arms to defend the Canadian border? They make no preparations to upgrade harbor defenses along the Atlantic coast or the Great Lakes? They don't delay or reassign the Burnside Expedition. They don't reconsider their plans for the Blockading Squadrons? They don't appoint a General-in-Chief who isn't prostrated by typhoid?
5 January
Immortalite arrives at the Chesapeake. The captain discovers Lyons has quit the country, and in response lights her boilers and sails hard for Bermuda. The USN blockading squadron does not engage her - at this point the two nations are not at war - and in fact informed Immortalite of the movement of the ambassador.
8 Jan
Immortalite makes Bermuda, and conveys the news to Adm. Milne. Milne orders his ships to concentrate ahead of the declaration of war, and has their coal bunkers topped off from the Dromedary hulk as they come in. (Due to the geometry of the Bermuda harbour basin, the battleships cannot enter the basin to coal in bad weathers and must use lighters - fortunately the pause is long enough that Hero and Donegal have time to enter and coal fully.)
It took the
Immortalite 11 days to reach the Chesapeake. As the captain later reported "Throughout the whole passage
I encountered moderate Gales from the N.W. and West, with a high sea; and only succeeded in making Cape Henry on the evening of the 4th instant. At this time I found the Fore Yard sprung and the Ship leaking excessively throughout her Decks, Waterways, Topsides, and Bends." The return trip in OTL took 4 days, even with favorable winds.
8/9 Jan
Overnight Cabinet session in the United Kingdom on whether to declare war. The decision is made in the affirmative.
That's faster that Britain choose to declare war on Germany in World War II. The British Cabinet would know Wilkes acted without orders and the Lincoln administration would have offered international arbitration on the incident. Britain might still choose war, but I'd expect there to be some debate on the issue first.
9 Jan
A fast steamer leaves the UK carrying the news of the war to Bermuda. It will make the crossing in ten days.
Other steamers head for Jamaica, Halifax, South Africa, and the Pacific - among other destinations.
But none to the United States? Is this supposed to be a timeline where the stereotype of Perfidious Albion is the truth?
12 Jan
Orders are tendered in Britain for ironclads to pass through the Canadian canals and operate on the Great Lakes. Their maximum length, beam and draft are defined by the dimensions of the locks on the Welland Canal, and they are to deliver in 90 days. To speed construction they will use plates rejected from the Warrior - lower quality, but still rolled armour.
There are several flaws with this point.
1) Governments do not move this fast. Let's look at the Union's acquisition of a new ironclad design. May 30, 1861 - the US Department of the Navy starts studying the maintenance and supply of the blockade. June 2, the conclude ironclads will be needed for this strategy. July 4, the Department of the Navy requests funding for from Congress. July 19, a bill is introduced. August 3, the bill passes providing funding for ironclads and a board to select designs. September 16, the design for the Monitor is approved. October 4, the contract to build the Monitor is signed. Total time 127 days, yet you have the British manage it in 3.
2) Why would the Royal Navy think they need to build a brown water ironclad navy? The Union started building ironclads in a response to the direct threat from the Confederates building an ironclad. The Union navy poses no direct threat to the harbors of Britain. This plan would likely be opposed by the War Office, the Exchequer, and elements of the Royal Navy as an unnecessary expense.
3)
The Welland Canal had locks that were 45.7 meters long, 8.1 meters wide, and 3.1 meters deep. Making an ironclad small enough to fit through that would be rather challenging. The Monitor had a length of 54.6 meters, a beam of 12.6 meters, and a draft of 3.2 meters, so the British are going to need a much smaller ship to fit in the Welland Canal. So far, I've found one type of ironclad with a shallow enough draft, the City class ironclads, but that design would have to radically changed - halving the width and dropping the length by 1/6th. If such a design was even possible, it would probably halve the amount of engines and armament that could be carried, which would mean 6 guns and a top speed of 4 knots. I expect Punch would have a cartoon of "Seymour's Bathtub Navy".
4) The best armor on the City class ironclad was 2.5 inches. Ironclads small enough to fit through the Welland Canal wouldn't have the power to move if covered in rejected plates for the
Warrior.
5) The Monitor was unsuited for the open ocean, but it had a greater draft and a much greater beam than an ironclad that could fit through the Welland Canal. I'd expect at least half of these British mini-ironclads to sink under tow from Britain to Canada, probably earning the nicknames of "Seymour's Folly" and "Iron Coffins".
6) The Union would be able to build Monitors directly on the Great Lakes in Chicago, Buffalo, Cleveland, and probably Detroit. Any British ironclads that can fit through the Welland Canal should be outnumbered against Union ships that out class them in speed, maneuverability, armament, armor, and seaworthiness.
15 Jan
HMS Mersey takes on Prince Albert to carry him back to Bermuda and out of harms’ way. Dunlop is alerted that there may be a state of war soon existing.
HMS Orlando arrives in Halifax, joining Hydra and Orpheus.
I think you meant Prince Alfred. Sending him to safety seems odd - the British royal family has traditionally been willing for younger brothers of the heir to go in harm's way.
16 Jan
More orders are tendered in the US for various ironclads - these include the Passaic class of five, the Casco class of eight and another four broadside ironclads (which will complete the 20-ironclad navy). First delivery is expected for the summer, pending availability of guns and armour plate.
The Monitor hasn't even launched, let alone seen combat, so designs for the
Passaic and the
Casco classes don't exist yet.
17 Jan
It is noted that a worrying proportion of British subjects serving in the armies of the Union (approx. 30% of the total ~100,000) are thought likely to either desert or resign at the prospect of facing their fellow countrymen.
Your numbers seem a bit off.
2.6 million men served in the Union Army over the course of the war. Of them roughly 200,00 were Irish; 50,000 were Canadian; 50,000 were born in England; and 20,000 were French Canadian, for a
total of about 320,000 men. In January, 1862, t
he Union Army had about 575,000 men, so about 70,000 of the men serving at that time would have been former British subjects. A 30% desertion rate among them would be about 20,000 deserters, not 100,000.
21 Jan
Greyhound sets off to carry the war order to Rum Key. When it arrives there, Bulldog will carry it on to Dunlop.
The news of the declaration of war arrives in Halifax. It reaches Upper and Lower Canada, the Maritimes - and Washington - within hours by telegraph.
At least the Canadians are polite enough warn someone that they're at war.
22 Jan
A paddle steamer sets off from the Potomac to Port Royal, carrying orders to recall the blockading squadrons in the South Atlantic and the Gulf.
That's the US Navy's only preparation? No second or third ships to make sure the message to the Blockading Squadrons get through? No preparation to sink ships in harbor channels to deny them to the British? No telegraphs to the San Francisco to warn the Pacific Squadron. No attempts to contact the Africa Squadron, the Brazil Squadron, and the East India Squadron? No attempt to contact the Burnside Expedition, if it sailed in TTL? No offering letters of marque against British shipping?
In discussion with the captain of broadside ironclad HMS Terror, Frederick Hutton, Milne informs the captain that he will be expecting Terror to participate as soon as possible as he feels it will be impossible to reduce the US forts without her.
Hutton is proud of his vessel, but he was also proud of his previous - Neptune - and sailed her in the Baltic in the Russian War. He respectfully reminds Milne of the lessons of Bomarsund, in which sailing vessels with steam power sufficed to reduce the very modern fortifications in the Aland islands.
Milne considers this, and tells Hutton a final decision will be made tomorrow.
Hutton appears to have forgotten a
few key details about the Battle of Bomarsund, like complete failure of sailing vessels with steam power being sufficient to reduce the fortress; the ten thousand French soldiers under General Baraguay d'Hilliers who landed behind the fortress and bombarded it with artillery; the "The landing of three short 32-pr. naval guns, four field-guns from the ships, and a rocket tube, on the 10th, was superintended by Rear-Admiral Chads, whose people had to drag them for four miles and a half over execrable ground to the point which had been selected as the site for the British battery", and that after three days of bombardment from land and sea, "No great amount of damage was done to the fortress; but the officer in command, General Bodisco, perceived that his position was desperate; and, at about mid-day, he exhibited a white flag"
23 Jan
Agamemnon arrives at Bermuda, and quickly begins recoaling. Her arrival gives Milne three battleships - one short of the four he considers necessary.
Captain Hutton seeks out Milne, and hands him a report he has borrowed from one of his gunners. It is the Journal of the Royal Artillery, specifically a section on the artillery experiments performed against a Martello tower in early 1861.
Why is Milne so impressed?
The test took place on solid ground, from an elevation, in generally good weather, over several days, against an unmoving target at a known, fixed distance that wasn't firing back. A "large proportion' of the rounds completely missed the tower.
25 Jan
Milne sets sail for the Chesapeake. His fleet consists of Hero, Donegal, Agamemnon, Aboukir, Immortalite, Melopmene, Liffey, Spiteful, Rinaldo, Medea, Cygnet and Racer, plus colliers and support vessels, and HMS Terror is left in Bermuda as harbour defence vessel.
Diadem and Landrail will soon arrive in Bermuda, and will be redirected on to join Milne when possible.
And sails directly into a heavy gale.
26 Jan
HMS Orpheus and HMS Hydra sail into the undefended Saco Bay and drop the railroad bridge across the Saco River, thus isolating Maine and allowing Nova Scotia militia to in future capture the railway west towards the Windsor Corridor.
To get to the bridge, the HMS
Orpheus and HMS
Hydra have to sail 5 miles up this river. In January the water wouldn't be this high and the Saco River would probably be clogged with ice. If they somehow make up the Saco River and drop the bridge, the Union can just rebuild the raiilroad bridge. Even if the river isn't impassible, I doubt HMS
Orpheus would make it - two years later, by a combination of refusing to wait for a pilot, ignoring his sailing master, the most current chart, and warnings from land; Commodore Burnett managed to sink his ship and kill himself and most of his crew in broad daylight and good weather.
27 Jan
The HMS Chesapeake stops the Saginaw from leaving Hong Kong. The news of the declaration of war had come in on a steamer from India only a few hours before, and Chesapeake is to stop Saginaw leaving port by any means necessary.
Saginaw has three medium guns on the broadside; Chesapeake has 26. The US ship surrenders.
HMS Chesapeake had been decommissioned in Sheerness on October 17, 1861.
29th
Milne's squadron arrives off the Chesapeake bay. His arrival makes it certain to the USN that the war is not a bluff, and in the face of superior firepower the vessels withdraw to protect the entrance to the Potomac.
It's 631 nautical miles from Bermuda to the Chesapeake Bay, so this would require an average speed of 7.5 knots. Even in clear weather, colliers and supply ships could not have traveled that fast. Neither could the
Racer. Of course, Milne's force didn't sail in clear weather, it sailed into
a heavy gale. And it's the darkest part of the month,
with the 29th being a new moon. Milne's task force will be damaged and scattered. Some of his ships will probably be forced to turn back, some might even be sunk by the weather. Milne's first ships probably won't reach the Chesapeake Bay until around February 3, with the last collier or supply ship limping in as much as a week later.
And has anyone told the Confederates that the US and Britain are at war? If so, the CSA naval forces at Gosport Naval Yard may sail in support of the British.
30th
Minnesota and HMS Liffey exchange fire at long range. The Minnesota scores four hits with her 9” guns and one hit with her 8” guns, taking in return three 8” shells and two 32-lber hits. The RN shells are slightly more effective due to their better fuzing (with Moorsom fuzes detonating reliably inside the enemy ship, as opposed to the fixed-time Dahlgren fuzes)
Remember that
Journal of the Royal Artillery report you mentioned? It has a lot to say about the
reliability of Moorsom fuzes - 'Twenty-one 68-pr. and seven 32pr. shells in all, were fired with Moorsom's percussion fuzes; of these, 9 burst at the muzzle of the gun, affording a clear proof that these fuzes will not stand the full service charges ordered to be used with all shells. The same thing has happened with 11 out of 72 shells fired at Portsmouth or Shoeburyness in experiments ordered since the promulgation of of the order in question. It was at first imagined, that there might be some difference between the fuzes of recent manufacture, and those of earlier date, and accordingly some of the oldest that could be found were selected. They bore the dates 1851 and 1852. Of the 32-pr. shells, 10 lbs. charges, fired with recent fuzes, the premature bursts were 4 in 7. Of the 68-pr. shells, 16 lbs. charges, fired with recent fuzes, the premature bursts were 6 to 12; and of those fired with the fuzes of 1851-52 were 3 to 9, a difference sufficiently in favor of the old fuzes, to merit investigation, but not enough to exempt them from the above remark. It was considered a waste of ammunition to fire more of them on the present occasion, and not unattended with danger to to the bystanders; they were therefore withdrawn." They also said "The Committee,
after the failure of the Moorsom's fuzes, proceeded with a new percussion fuze proposed by Mr. Pettman."