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Concept
Action of 4 May 1917
Summary
The action of 4 May 1917 was a naval and air engagement of the First World War in the North Sea. The action took place between the German Zeppelin LZ 92 (tactical name: L.43), several German submarines and a naval force led by the Australian light cruiser . The action was inconclusive with no casualties on either side, concluding when the Zeppelin had dropped all of its bombs and the cruisers had expended all of their anti-aircraft ammunition.
Sydney was serving in British waters when on 4 May 1917, while part of an anti-submarine patrol from Rosyth, Scotland, the ship took part in a battle with a German Zeppelin, L.43, commanded by Kapitänleutnant Hermann Kraushaar. In concert with another cruiser, and four destroyers, , , and . Sydney, under the command of Commander John Dumaresq, the second-in-command of the 2nd Light Cruiser Squadron, had been patrolling between the Firth of Forth and River Humber, when lookouts spotted a vessel on the surface to the east of the British flotilla and Obdurate was detailed to investigate at around 10:00 am. About twenty-five minutes later, the Zeppelin was located by Dublin about to the east, Sydney and Dublin turned towards the contact and fired at maximum range.
Obdurate continued to investigate the surface contact and subsequently located two German submarines. Coming under attack from one of these submarines, the destroyer dropped depth charges before turning away to attack the Zeppelin. As the destroyer closed on it, the Zeppelin turned away to the south-east. Within the space of the next half an hour, Dublin was attacked by the German submarines at least three times with torpedoes, leading Dumaresq to conclude that the Germans were attempting to spring a trap on the British vessels. He subsequently ordered Obdurate to complete its investigation of the suspect vessel, which was subsequently determined to be a Dutch fishing vessel.
Dumaresq tried to draw the aircraft into following the British force by ordering his ships to turn back onto their original course.
Official source
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