Convoy SC 100 was the 100th of the numbered series of

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

Slow Convoys of merchant ships from Sydney, Cape Breton Island to

Liverpool Liverpool is a city and metropolitan borough in Merseyside, England. With a population of in 2019, it is the 10th largest English district by population and its metropolitan area is the fifth largest in the United Kingdom, with a popul ...

. The convoy departed Halifax on 12 September 1942 and was joined on 16 September by

Mid-Ocean Escort Force Mid-Ocean Escort Force (MOEF) referred to the organisation of anti-submarine escorts for World War II trade convoys between Canada and Newfoundland, and the British Isles. The allocation of United States, British, and Canadian escorts to these co ...

Group A-3. The convoy had been scattered by an equinoctial storm when

U-boat U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare role ...

s found it on 18 September. The ships of Group A-3 were not fast enough to catch surfaced U-boats; and the U-boats sank five scattered ships before losing contact on 25 September. Surviving ships reached Liverpool on 28 September.

Escorts

The convoy was escorted by the following allied warships:- * 13 Flower-class

corvette A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper (or " rated") warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the slo ...

s :* , , , , , , , , , , , , . * 2

destroyer In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in ...

s :* ''Grom''-class

ORP ''Błyskawica'', and Town-class

HMCS ''Niagara'' * 1 ''Grimsby''-class

sloop A sloop is a sailboat with a single mast typically having only one headsail in front of the mast and one mainsail aft of (behind) the mast. Such an arrangement is called a fore-and-aft rig, and can be rigged as a Bermuda rig with triangular sa ...

:* * 2 ASW Trawlers :* HMT ''Kingston Beryl'' :* HMT ''Narvik'' * 1 River-class

frigate A frigate () is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied somewhat. The name frigate in the 17th to early 18th centuries was given to any full-rigged ship built for speed and ...

:* * 2 Treasury-class cutters :* ,

U-boats

The convoy was attacked by both

Wolfpack Lohs Lohs was a " wolfpack" of German U-boats that operated from August 1 to September 22, 1942 in World War II. This pack patrolled both sides of the Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an a ...

comprising 9 U-boats, and 8 U-boats from

Wolfpack Pfeil Pfeil ("Arrow") was the name given to two separate U-boat " wolfpacks" of Nazi Germany during World War II. Pfeil 1 (Sep 1942) The first wolfpack comprised 11 U-boats and operated from 12 September 1942 to 22 September 1942. This pack patrolled b ...

, namely

Wolfpack ''Lohs''

* – Kapitänleutnant Friedrich-Hermann Praetorius * – Kapitänleutnant Reiner Dierksen * – Kapitänleutnant Klaus Köpke * – Kapitänleutnant Paul-Karl Loeser * – Kapitänleutnant Kurt Sturm * – Kapitänleutnant

Heinz-Otto Schultze Heinz-Otto Schultze (13 September 1915 in Kiel – 25 November 1943 in the South Atlantic) was a German U-boat commander in World War II and recipient of the Knight's Cross of the Iron Cross (). The Knight's Cross of the Iron Cross was awarded t ...

* – Kapitänleutnant Hans-Peter Hinsch * – Kapitänleutnant Wolfgang Breithaupt * – Kapitänleutnant Walter Göing

Wolfpack ''Pfeil''

* – Kapitänleutnant Karl-Otto Schultz * – Kapitänleutnant

Hans-Hartwig Trojer The Knight's Cross of the Iron Cross (german: Ritterkreuz des Eisernen Kreuzes) and its variants were the highest awards in the military and paramilitary forces of Nazi Germany during World War II. The decoration was awarded for a wide range of ...

* – Kapitänleutnant Wilhelm von Mässenhausen * – Kapitänleutnant Georg Wallas * – Kapitänleutnant Jürgen Quaet-Faslem * – Kapitänleutnant Ernst Mengersen * – Kapitänleutnant Ralph Kapitzky * – Kapitänleutnant

Albrecht Brandi Albrecht Brandi (20 June 1914 – 6 January 1966) was a German U-boat commander in Nazi Germany's ''Kriegsmarine'' during World War II. Together with Wolfgang Lüth, he was the only ''Kriegsmarine'' sailor who was awarded with the Knight's Cro ...

Order of battle

Allied merchant ships

Convoy escorts

References

Bibliography

* * {{cite book , title=Chronology of the War at Sea 1939–1945 , author1=Rohwer, J. , author2=Hummelchen, G. , publisher=Naval Institute Press , year=1992 , isbn=1-55750-105-X * Willoughby, Malcolm F. ''The U.S. Coast Guard in World War II'' (1957) United States Naval Institute SC100 Naval battles of World War II involving Canada C