Q&A ยท 5:09:46-5:10:48

Could convoy escorts have received towed-array sonar in WWII?

Prewar research had begun, but reliable operation at sea and processing the acoustic data delayed practical towed arrays for convoy escorts.

Question

Could the Royal Navy have developed towed-array hydrophones for convoy escorts during the Second World War?

Short answer

Work had already begun before the war, but reliable operation and the ability to process acoustic data delayed service use. A longer war might have brought some equipment into service.

Notes

The Royal Navy was already working on towed-array hydrophones in the 1920s and 1930s. Getting the equipment to function reliably under operational conditions at sea took longer than developing the initial concept. The ship also needed the ability to ingest and process the array's acoustic data. Some equipment was being tested during the Second World War and might have entered service if the war had lasted longer. Anti-submarine mortars offer a parallel: some had prewar origins but did not reach fleets until late in the war.