Operation Ironblock
Overview: It is 2000 kilometers from air base complexes in Northern Scotland to Tromso Norway and about that distance by sea from embarkation points to final landing beaches just east of Bode, Norway.
Why Bode? Because the British built a rough airfield there before they evacuated Norway in 1940, and it is still there, since improved by the Germans.
Naval order of battle:
Might as well get the bad news out of the way. The cover force will take most of the operational Atlantic Fleet. It will have to be the Ranger and the Wasp supported by the USS Texas and Arkansas as well the four US heavy cruisers and twelve destroyers deployable at this date. They will need at least 4 oilers, 2 ammunition ships, 6 dry stores ships and access to RN facilities to repair battle damage during this operation. The Washington and North Carolina, 2 more cruisers, 6 destroyers, and some 5 CVEs are available if needed. It will strip the Eastern Sea Frontier to the bone. The CVEs will be plane ferries. The planes embarked will almost all be P-40s. It is what is available. The good stuff is still late 1943, unless the Americans want to fly British aircraft. (And if they are smart at this point of the war, they should until the Thunderbolts and Lightnings are debugged.)
Most likely the naval air groups will be almost all Wildcats and Dauntlesses. These will be half and half, totaling no more than 120-150 aircraft between the two “attack” aircraft carriers, and if I was the man doing the load out I would embark that as 80 Wildcats and 40 Dauntlesses minimum.
The transports to lift the three divisions necessary come to about 45 AKs. This will come from US force pool reserves. This convoy will need a minimum of 15 destroyers and 4 scout cruisers to escort,and 6 oilers to sustain.
Now expect the British forces to be roughly equivalent. That is to say, two British divisions lifted by 40 transports, with 4 attendant stores ships, covered by 3 British battleships ( 1 KGV and two Rs), 2 of their older aircraft carriers, (Furious and maybe an Indomitable), 3 or 4 heavy cruisers, 3 light cruisers and about 2 dozen destroyers with 6 oilers.
Assuming the Germans remain blissfully unaware, (pick a storm front to mask the transport operation, Mother Nature is your friend.) it will take the whole shebang at least 140 hours @ 15 km/hr to make it from Edinburgh, Newcastle and Inverness to Bode. That is 6 days at sea, while Mister U-boat, and the Luftwaffe are doing their thing. There will be no way to reroute or divert the invasion convoys as was done during Torch, so a massive Allied deception operation has to be laid on with a likely target (North Africa comes to mind).
The Germans have a tough geographical problem. They are 2,200 kilometers away by rotten roads, misgauged rail-lines and over mountainous terrain slashed deeply and transversely by fjords the further north they travel to Vestfjord and points north. They are 6 days tactical road march. They might be nearer if they move their southern Norwegian garrisons, (about 4 days and only 1700 kilometers) but it is 1942, not today where it would only take a day and a half at most over good rails and with good roads between Oslo and Narvik.
The two sides are about logistically even.
Who can reinforce faster and who can gain and maintain air superiority in that rotten terrain in Northern Norway?
The odds favor the allies if they get an airfield complex established and defend it within the first 30 days.
While round trip from Glasgow to Tromso is 4,000 kilometers by air, it is an air bridge a B-17 can fly one way. Get a flock of heavy bombers into Northern Norway and sustain them behind a wall of allied infantry and fighters; then the Germans are in REALY BIG TROUBLE, because now the Arctic Convoys are no longer under serious German naval threat. (Getting in there means the Kriegsmarine has two choices, die in harbor or at sea. KGVs vs Tirpitz and the Twins, and that is Gotterdammerung. With US naval aviation in there, too, I figure the KM odds as so close to zero it isn’t even funny.)
Will it work? The risks are Guadalcanalesque in the extreme. The Germans are tougher on land than the Japanese but they are rank amateurs AT SEA. I like the odds a lot better than Sledgehammer. It has the benefit of markedly aiding the Russian war in a way that Torch does not. In 1942, Russia is the game. Is it riskier than Torch? Yes..
By at least an order of magnitude. But to help Russia stay in the war, if it comes to it, it is worth it.
Comments? Criticisms?
It is not Stalingrad (West), but it sure is Italy (North). It fits an RTL strategic imperative that worries the Wallies, puts the Germans into a no-win pickle if the landings stick and immediately materially aids the Russians far more than the operations the Wallies pull off in 1943.