Actions in the St. Lawrence
In September 1942, Eastern Air Command stationed a detachment of 113 Squadron aircraft at RCAF Station Chatham as the "Special Submarine Hunting Detachment" in order to provide air cover for convoys in the Gulf of St. Lawrence. U-boats had begun to infiltrate the St. Lawrence that May, and had already scored some notable victories without a loss, however, the increased air cover allowed Canadian forces to mount a vigorous anti-submarine defense. The first attack by a 113 Squadron aircraft on a U-boat took place near Anticosti Island on 9 September, when Pilot Officer R.S. Keetley and his crew dove in on U-165, but did not cause any critical damage. On 16 September, Keetley launched an attack on U-517, but despite getting a depth charge lodged on its deck, the U-boat escaped unharmed. On 24–25 September, 113 Squadron registered three attacks on seven sightings on U-517, plus a further attack on 29 September. Despite considerable damage from these attacks, both U-517 and U-165 departed the Gulf. Flying Officer M.J. Bélanger, who had conducted three of the last four attacks on U-517 would later be awarded the Distinguished Flying Cross. [6]
The Lockheed Hudson is a light bomber and coastal reconnaissance aircraft built by the American Lockheed Aircraft Corporation. It was initially put into service by the Royal Air Force shortly before the outbreak of the Second World War and primarily operated by it thereafter. The Hudson was a military conversion of the Model 14 Super Electra airliner, and was the first significant aircraft construction contract for Lockheed — the initial RAF order for 200 Hudsons far surpassed any previous order the company had received.
The Lockheed Ventura is a twin-engine medium bomber and patrol bomber of World War II.
Canadian Forces Base Greenwood, or CFB Greenwood, is a Canadian Forces Base located 1.5 nautical miles east of Greenwood, Nova Scotia. It is primarily operated as an air force base by the Royal Canadian Air Force and is one of two bases in the country using the CP-140 Aurora and CP-140A Arcturus anti-submarine/maritime patrol and surveillance aircraft. Its primary RCAF lodger unit is 14 Wing, commonly referred to as 14 Wing Greenwood.
The Battle of the St. Lawrence involved marine and anti-submarine actions throughout the lower St. Lawrence River and the entire Gulf of Saint Lawrence, Strait of Belle Isle, Anticosti Island and Cabot Strait from May–October 1942, September 1943, and again in October–November 1944. During this time, German U-boats sank over 20 merchant ships and four Canadian warships. There were several near-shore actions involving the drop of German spies, or the attempted pickup of escaping prisoners of war. Despite the 23 ships lost, this battle marked a strategic victory for Canadian forces as ultimately they managed to disrupt U-boat activity, protect Canadian and Allied convoys, and intercept all attempted shore operations. This marked the first time that a foreign power had inflicted casualties in Canadian inland waters since the US incursions in the War of 1812.
German submarine U-754 was a Type VIIC U-boat deployed by Nazi Germany's Kriegsmarine during the Second World War against allied shipping in the Atlantic Ocean. She was a successful but short-lived boat, sinking 13 ships during her career. She was most notorious for her final attack, in which she shelled and sank the small fishing vessel Ebb, and killed a number of its crew with machine-gun fire as they attempted to launch a life raft. She was sunk with all hands by a Royal Canadian Air Force bomber three days later on 31 July 1942.
No 36 Squadron of the Royal Flying Corps was formed at Cramlington in 1916 and was disbanded for the last time in 1975.
No. 500 Squadron AAF was a Royal Air Force flying squadron. It was initially formed in 1931 as a Special Reserve squadron and in 1936 became part of the Auxiliary Air Force, at this time based at Manston and Detling.
No. 233 Squadron RAF was a Royal Air Force squadron that operated from 1918–1919, 1937–1945, 1952–1957 and 1960–1964. The squadron was formed from several Royal Naval Air Service (RNAS) flights and took part in the tail end of the First World War before being disbanded. The squadron was reformed with the advent of World War II. At first No. 233 Squadron flew general reconnaissance patrols before being tasked with transportation duties just prior to D-Day. Shortly after the Second World War the squadron was again disbanded, to be reformed once more in 1960. No. 233 Squadron was finally disbanded in 1964.
No. 8 Squadron RCAF was a unit of the Royal Canadian Air Force (RCAF) that was in operation from 1936 to 1945.
No. 115 Squadron was a Royal Canadian Air Force Canadian Home War Establishment (HWE) Squadron that operated during World War II.
No. 119 Squadron was an RCAF Canadian Home War Establishment (HWE) Squadron. Created 15 May 1935 in Hamilton, Ontario, it came to be tasked with coastal patrol and anti-submarine duty over the Gulf of St. Lawrence and the Atlantic Ocean around Nova Scotia. It was disbanded 15 March 1944 in Sydney, Nova Scotia.
423 Maritime Helicopter Squadron is a unit of the Canadian Forces under Royal Canadian Air Force. It currently operates the Sikorsky CH-148 Cyclone from CFB Shearwater in Nova Scotia, Canada.
Eastern Air Command was the part of the Royal Canadian Air Force's Home War Establishment responsible for air operations on the Atlantic coast of Canada during the Second World War. It played a critical role in anti-submarine operations in Canadian and Newfoundland waters during the Battle of the Atlantic. Eastern Air Command also had several fighter squadrons and operational training units under its umbrella.
Western Air Command was the part of the Royal Canadian Air Force's Home War Establishment responsible for air operations on the Pacific coast of Canada during the Second World War.
German submarine U-517 was a Type IXC U-boat of the Nazi Germany's Kriegsmarine during World War II.
Convoy QS 33 was a trade convoy of merchant ships during the Second World War. It was one of the numbered QS Convoys from Québec to Sydney. The convoy was attacked in the early months of the Battle of the St. Lawrence, in the St. Lawrence River and Gulf of St. Lawrence, when German U-boats were making ad hoc forays deep into Canadian waters. The convoy was found on 6 September 1942 by U-165, which then destroyed two ships from the convoy while U-517 destroyed three.
Convoy SQ-36 was a trade convoy of merchant ships during the Second World War. It was one of the numbered SQ convoys from Sydney to Quebec. The convoy was found on 15 September 1942 by U-517, which then destroyed two ships from the convoy while U-165 sank another and damaged two.
Convoy LN-7 was a trade convoy of merchant ships during the Second World War. It was one of the numbered LN convoys from Quebec City to Goose Bay, Labrador. The convoy was found on 2 September 1942 by U-517, which then destroyed the merchant ship Donald Stewart early the next morning.
Convoy QS-15 was a trade convoy of merchant ships during the Second World War. It was one of the numbered QS Convoys which travelled from Québec to Sydney. The convoy was attacked in the early weeks of the Battle of the St. Lawrence, in the St. Lawrence River and Gulf of St. Lawrence, when German U-boats were making ad hoc forays deep into Canadian waters. The convoy was found on 6 July 1942 by U-132, which then sank three ships. U-132 was attacked and damaged by the convoy escort ship HMCS Drummondville.
Squadron Leader Terence Malcolm Bulloch, DSO & Bar, DFC & Bar was a Royal Air Force Coastal Command pilot during the Second World War. He carried out the highest number of attacks on U-boats during the Battle of the Atlantic, sinking a record total of three.
Canada 
Royal Canadian Air Force 