191. August BETASOM base opens in Bordeaux for Italian submarine patrols into the Atlantic. August 4, 1940 sinks 3 British merchant steamships from convoy HX 60. August 5, 1940 sinks Boma from convoy OB 193. August 15, 1940 A new system of SC convoys is initiated between Canada and the British Isles, to provide convoy protection for slow ships. August 16, 1940 sinks Hedrun from convoy OB 197. August 23, 1940 sinks Cumberland and St. Dunstan from convoy OB 202. Aircraft sink Llanishen and Makalla from convoy OA 203. August 24, 1940 sinks Blairmore from convoy SC 1. August 25, 1940 Convoy HX 65 comes under attack by U-boats and aircraft sinking five ships. August 28, 1940 U-boats sink four ships from convoy HX 66. sinks Dalblair and Astra II from convoy OA 204. August 30, 1940 torpedoes San Gabriel from convoy OB 205. August 31, 1940 British destroyers and are sunk and two other ships damaged by mines in the Texel Disaster with the loss of 300 killed and 100 wounded or taken prisoner. September September 2, 1940 sinks Thornlea from convoy OB 206. September 4, 1940 sinks Titan from convoy OA 207. September 6, 1940 Aircraft sink St. Glen from convoy SL 44. September 8, 1940 U-boats sink two ships from convoy SC 2. September 15, 1940 sinks Alexandrios and Empire Volunteer from convoy SC 3. Aircraft sink Nailsea River from convoy SL 45. September 17, 1940 sinks Tregenna from convoy HX 71. September 18, 1940 sinks Marina and City of Benares from convoy OB 213. September 20, 1940 sinks four ships from convoy OB 216. September 21, 1940 U-boats sink six ships from convoy HX 72. September 26, 1940 sinks Manchester Brigade and Stratford from convoy OB 218. September 27, 1940 Aircraft sink Port Denison from convoy OA 220. September 28, 1940 Aircraft sink Dalveen from convoy HX 73. sinks Empire Ocelot from convoy OB 218. October October 9, 1940 sinks three ships from convoy SC 6. October 11, 1940 U-boats sink six ships from convoy HX 77. October 14, 1940 sinks Hurunui from convoy OA 228. October 15, 1940 sinks Bonheur from convoy OB 228. October 17, 1940 sinks Dokka and Uskbridge from convoy OB 228. October 18, 1940 Minelaying begins on the Allied Northern Barrage minefield between Scotland and Greenland. October 19, 1940 U-boats sink ten ships from convoy HX 79 and fifteen ships from