Ironclads and blockade: Britain vs Union

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galveston bay

Corporal
Joined
Aug 15, 2016
Messages
435
Chippawa is on the Welland Canal now? Not the Welland River?

Here is the obvious difference between 1862 and 1814, which I don't think you've grasped the nettle of - in 1862 means exists for Royal Navy warships to cross from Lake Ontario to Lake Erie. In 1814 the RN squadron on Lake Erie had been destroyed by Perry's squadron and there was no way of reconstituting it. In 1862 when the canal opens a horde of gunboats will close down the Niagara river, the Welland River and be on Lake Erie. Hence the time factor.

The US have two weeks from their own port of Buffalo becoming open to navigation (mid-April) to the RN ascending onto Lake Erie. In that time the US has to win enough to have stopped the RN coming into play. This is pretty difficult.

Oh, and hope the Canadians don't pull out some of the 39 heavy mortars they have and bombard Buffalo harbor whilst the ships are still icebound. The US has say three months of relative helplessness to such an attack before they can get their ships out (same to Detroit).
Yep, ice is no fun

However I will let Canadian Canucks very helpful map demonstrate the terrain and geography

Difficult? Of course, which is why I said it matters who has what there at the time action begins.

Don't assume difficult means easy victory for either side

By the way, what is to keep American gunboats built during the winter on Lake Ontario from causing trouble? Rochester and Sacketts Harbor are on that lake, are ports, have rail and Erie Canal connections to the rest of the state and and is a natural place to build gunboasts

Indeed Sacketts Harbor is where warships were built during the last war

To seize the Lakes you must do it one at a time if driving west... securing Ontario, Erie, then the choke points for each, then you still have to get past Detroit to threaten the other 3 lakes

Certainly not an easy task
 
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Dilandu

Sergeant
Joined
Mar 16, 2015
Messages
886
Location
Moscow, Russian Federation
Hm!

According to the "Mounting and Working Heavy Guns at Sea" (by RN commodore Dawson, 1872) the Royal Navy have enormous problem with gun mountings...

For example: it took nearly A HOUR to change the elevation of "Wywern" turret guns... The "Royal Sovereign" required almost half an hour to do that.

And from some other article:

rn_guns2.jpg

rn_guns7.jpg
 

67th Tigers

1st Lieutenant
Joined
Nov 10, 2006
Messages
3,658
Hm!

According to the "Mounting and Working Heavy Guns at Sea" (by RN commodore Dawson, 1872) the Royal Navy have enormous problem with gun mountings...

For example: it took nearly A HOUR to change the elevation of "Wywern" turret guns... The "Royal Sovereign" required almost half an hour to do that.
You exaggerate a bit. This is the time taken to go from from minimum elevation (i.e maximum depression) to maximum elevation. It's in Parkes (from this very source).

As originally built, the sliding mounts of the Scorpion with the 12.5 ton 10.5" RML indeed were slow to move through their full elevation (the working range was -5 degrees to +13 degrees, although the ports would admit greater but aim was impossible), and could take an hour. Sliding mounts were rapidly improved, and then soon replaced by pivoting mounts.

US monitors had similar problems rapidly changing elevation. However, they essentially fought enemy ships at point blank range, with the guns leveled. The Dahlgrens had a simple handworked elevating screw, which worked well for smaller guns (32 pdrs) but was more problematic with the 15". Fortunately there was never any need for a sudden change of 18 degrees elevation (which would likely take 20 minutes or more to perform).

The range of elevation allowed was small, and indeed Monitor couldn't elevate her guns enough to engage Fort Darling. The 8" rifle in the Passaic class turret could only elevate to 7 degrees due to the size of the port. The 15 inch of course could not be elevated because of the smoke-box.

Wivern's mounts are no worse than a US monitor in that period. Technology advanced thereafter.
 
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