("Arrow") was the name given to two U-boat "wolfpacks" of Nazi Germany during World War II.

I (September 1942) The first wolfpack comprised 11 U-boats and operated from 12 to 22 September 1942 against Convoy ON 129. The found the convoy but fog and resolute defence by the escorts defeated the U-boats. The fog lifted on the following day and two of the boats spotted escorts but were diverted and the convoy managed to evade the . On 18 September, Rear-Admiral Karl Dönitz, the (BdU, Comamnder, U-boats) cancelled the operation.

U-boats involved + I U-boatFlagCommanderDatesNotesKapitänleutnant Karl-Otto Schultz15−22 September 1942Kapitänleutnant Hans-Hartwig Trojer12−22 September 1942Kapitänleutnant Wilhelm von Mässenhausen12–22 September 1942Kapitänleutnant Georg Wallas12–22 September 1942Kapitänleutnant Hans Geissler12–14 September 1942Kapitänleutnant Jürgen Quaet-Faslem12–22 September 1942Kapitänleutnant Ernst Mengersen12–22 September 1942Kapitänleutnant Ralph Kapitzky12–22 September 1942Kapitänleutnant Albrecht Brandi12–22 September 1942Oberleutnant zur See Kurt Makowski12–22 September 1942Oberleutnant zur See Erich Lilienfeld12–22 September 1942

II (February 1943) The second wolfpack comprised 13 U-boats and operated from 1 to 9 February 1943. This pack attacked Convoy SC 118 that had sailed from New York on 24 January 1943 for Loch Ewe in Scotland. Escort Group B2 (Commander F. B. Proudfoot) with the destroyers HMS Beverley, and , the US Coast Guard cutter and the corvettes and with the Free French and and the convoy rescue ship (1,571 GRT). On 2 February 1943, the convoy was about to the east-north-east of Newfoundland, in a storm that had scattered the ships over . was in a line athwart the course of the convoy; measured a wind speed of and waves supposedly high. On the night of 4/5 January the convoy passed through the German patrol line unseen. At dawn, to the east of the U-boats, someone on the Norwegian fired a snowflake flare by mistake that was seen on and reported, the U-boat getting in front of the convoy. The signal was less than twenty seconds long but that was enough for and to get high-frequency direction finding (Huff-Duff) fixes.

U-boats involved + II U-boatFlagCommanderDatesNotesKorvettenkapitän Dietrich Lohmann1−9 February 1943Oberleutnant zur See Heinz Schütt3−8 February 19438 February, damaged by B-24 K 120 SquadronKapitänleutnant Ralph Münnich1–4 February 1943Kapitänleutnant Heinz Franke1–7 February 1943Sank 2,864 GRT merchant shipKapitänleutnant Ralf von Jessen4–9 February 1943Kapitänleutnant Otto Tinschert17 February 19436 February, damaged Korvettenkapitän Siegfried von Forstner1–8 February 19437 February, sank 6 ships, 37,075 GRTKapitänleutnant Gustav Poel1–9 February 1943Sank straggler, 5,376 GRTKapitänleutnant Burckhard Hackländer1–9 February 1943Kapitänleutnant Heinz Wolf1–8 February 1943Kapitänleutnant Friedrich Mumm1–9 February 1943Kapitänleutnant Rolf Struckmeier1–9 February 1943Kapitänleutnant Klaus Rudloff1–7 February 19436 February, sunk by

Raiding success Pfeil II was responsible for the sinking of 11 ships (54,326 GRT), plus one ship damaged (9,272 GRT).

Footnotes

Bibliography

Further reading original titles, Ships of the Royal Navy: Statement of Losses during the Second World War and British Merchant Vessels lost of Damaged by enemy Action during Second World War