Lieutenant Commander Hans Rahmlow was Captain of the German submarine U570. NO 269 Squadron Chronicle records "27 Aug 1941. At 0640 Captain of U-570 submerged to give sea-sick crew a rest. Surfaced for reconnoitre at 0730. At this time, Flt Sgt Mitchell in a Hudson of No 269 Squadron sighted the U-boat and attacked but depth charges hung up. The stand-by strike aircraft (V9028/S) was despatched, (Sqn Ldr JH Thompson pilot, Flg Off WJO Coleman navigator), the U-boat was located whilst re-surfacing, successfully attacked as it again crash-dived and forced to re-surface. Subsequent machine gun attack resulted in surrender of U-boat. Extract from ‘Hitler’s U-boat war – The Hunters 1939-1942’ p.342: “Puzzling over this unpreceedented development, Thompson pulled up and circled warily. While the gunners, Frederick J. Drake and Douglas Strode, kept their machine guns trained on U-570’s bridge, Thompson radioed an alarm and requested help. Another Hudson of 269 Squadron, piloted by Hugh Eccles (Note: Error. Although Flg Off HH Eccles was the captain of the aircraft, on this occasion he was navigating and Plt Off JG Owen-King was the pilot), en route from Scotland to Iceland, heard the call and homed on Thompson…….Eccles took photographs and served as a radio-relay station….” Catalina (AH553/WQ-J, Flg. Off. Jewis) took off from Reykjavik at 1100 hrs and sighted the U-570 in position JHX 1525 at 1344 hrs. Captain was instructed to stand by pending arrival of surface force. Trawler sighted at 2145 hrs and given position of U-570. Entire crew observed in conning tower, approx 8 officers in forward section and 30 in rear. Weather poor, rain showers, visibility 8 to 10 miles, falling in rain. Cloud base 800 feet, sea rough. A second Catalina (AH565/WQ-H, Flt Lt B Lewin) was on an Anti-submarine sweep in the area and sighted U-570 at 1745hrs. ‘10 men on deck ‘waving a white flag’. A US Catalina of VP-73 and a Glenn Martin Mariner PBM1 of VP-74 were also sighted in area.

No 269 Squadron Old Comrades Association website at [www.oca.269squadron.btinternet.co.uk] in an appendix to the Chronicle gives a much fuller account of the incident.