Battle of the Atlantic

No, that was KORMORAN. PINGUIN also had a brilliant career, as did ATLANTIS
Correct

These Auxiliary cruisers (also designated as HAndels-Stor-Kruzer" included
HSK-1 Orion (Schiff 36 Raider A)
In her voyage of 510 ays duraun sunk or captured 91/2 ships with a total of 80,279 tons

HSK-2 Atlantis- Schiff 16, Raider C
In a voyage lasting 622 days sank 22 ships totalling 145,697 gross register tons

HSK 3 Widder Schiff 21 Raider D
In a voyage of 179 days destryed ships totalling 58,645 g.r.t.
KSK- 5 Pinguin Schiff 33 Raider F

In a voyage of 321 days sabk or captured 28 ships of 136,551 g.r.t.
HSK 6 Stier Schiff 23 Raider J
n a voyage of 129 ays sunk 4 ships with a total of 29,406 g.r.t.
HSK 7 Komet Schiff 45 Raider B
in a voyage of 510 days sunk 6 1/2 hips totalling 42,059 g.r.t.
HSk 8 Kormoran Schiff 41 Raider G
In a voyage of 352 days sank or captured 11 ships of 68,264 g.r.t. as well as H.M.A.S. Sideny- a heavy cruiser f 6,830 tons.In this action, Kormoran' caught fire and her cargho of mines blew up.
KSK 9 Michel Shiff 28 Raider H
In 505 days at sea sank or captured 18 ships with a total of 127,107 g/r/t/


Quite an accomplishment l would say...

 

among other things:

sonar, hedgehog, huf duf( i'm not sure if this is the rigth name), more destroyers, longer range planes, and a last but not least the capture of an enigma machine

 

As Me262 points out, it was all of the above, and superior startegy in the end. Long range aricraft, escort carriers, hedge-hogs, squids, sonar, radar, short wavelength airborne radar, high frequency direction finders (huff-duff), destroyer escorts, mathmatical search and attack patterns, sound tactics as exemplifeid by Johnny Walker, intelligence such as Enigma, all did in the U-boats.
The type XXI may have prolonged things, but I doubt they could have turned it around.

 

the XXI u boot was much more advanced than anything in stock, allies and axis,there is an incident in which one XXI u boot manage to avoid the escors screen of a heavy cruiser, i'm not sure if this was the norfolk)
and get very close to the cruiser, but since the alread surrendered they disengage and left the target alone

 

It is indeed fortunate that the best U-boat type didn't appear until literally the eleventh hour; otherwise, Germany might well have won the battle and the war. Of course, had Donitz had as many submarines in commission in 1939 as he'd asked for, it's likely that Britain would have lost the war.

 

No commander ever went into any war with everything he would have wanted. Donitz didn't have the subs he wanted and the RN didn't have as many destroyers and other escorts as they would have liked.

Fact of life.

 

I found it:
The U boot U 2511 was west of the Faroe Islands passage on may 4, 1945 when received the news of the inpending surrender and Admiral Doenitz's order not to attack. The boat, commanded by Corvette Capitan Schnee, then broke off it's mission and aproched a group of british cruisers dduring the return trip. Unnoticed, it penetrated the latter's security and came within 500 meters range of the heavy cruiser Norfolk. After a textbook practice attack, it continue it's run an reached Bergen.The British were at first not dispose to believe Schnee but were convinved at the end.

from The German Navy at War 1935-1945 vol 2 :the U boat by Siegfried Breyer and Gerhard Koop

 

The X boats sure sounded like a tough opponent, but I have no doubt the Allies will come up with weapons and tactics to counter the new threat, this is a natural evolution in warfare. The side with the most resources (men, material, and intelligence) usually wins.

 

But could they come up with the weapons and tactics in time?

 

Yes, because it would have taken time to construct the new boats in large enough numbers to be decisive, not to mention training the crews.