Unison fired several torpedoes at Duca d'Aosta and Raimondo Montecuccoli on 3 June 1942 but missed both targets. That failure stands out against the U-class submarine's strong record of sinking or damaging merchant ships. The escape helps explain why Duca d'Aosta could be described as a lucky ship despite operating within reach of capable British submarines. Unison later entered Soviet service as V-3 before she was returned and scrapped, giving the submarine and her former target an unusual connection.
Notable Point · 10:49-12:41
HMS Unison misses Duca d'Aosta and Montecuccoli
The usually successful U-class submarine HMS Unison failed to hit two Italian cruisers before later sharing their connection to Soviet service.