patrols from 16 April to 20 May, 29 June to 6 July, and 17 November to 29 December 1941, Cappellini sank two ships on its fifth BETASOM patrol. During the following patrol, Cappellini participated in rescue operations of the Laconia incident. After another unsuccessful patrol, Cappelini was converted to a transport submarine. Cappellini sailed on 11 May and reached Singapore on 13 July 1943 with 160 tons of mercury, aluminum, welding steel, 20mm guns, ammunition, bomb prototypes, bombsights and tank blueprints. Cappellini was seized by Germany following the Italian armistice of September 1943 and commissioned into the Kriegsmarine as UIT-24. UIT-24 was then seized by the Imperial Japanese Navy following German surrender in May 1945 and renamed I-503. I-503 was found at Kobe when Japan surrendered and scuttled in Kii Suido by the United States Navy. Comandante Faà di Bruno (also called Faà di Bruno) (pennant number FB) was launched 18 June 1939 and completed on 23 October 1939 as the second boat of the "improved Marcello class". After two unsuccessful war patrols in the Mediterranean, Faà di Bruno sailed on 28 August 1940 and passed the Strait of Gibraltar on 3 September for an Atlantic patrol to Bordeaux on 5 October. Faà di Bruno was lost to unknown causes on its first BETASOM patrol after sailing from Bordeaux on 31 October 1940. See also Italian submarines of World War II Notes Sources Marcello class at regiamarina.net Erminio Bagnasco, Submarines of World War Two, Cassell & Co, London. 1977 Brice, Martin Axis Blockade Runners of World War II (1981) Naval Institute Press Kafka, Roger & Pepperburg, Roy L. Warships of the World Cornell Maritime Press (1946) Taylor, J.C. German Warships of World War II (1966) Doubleday & Company Reference to Nani at uboat.net External links Classe Marcello Marina Militare website Submarine classes