A small history behind this subject, during the battle of the Grandharbour, [Operazione Malta2] 2 SLC were to be deployed before the bomb loaded speed boats were to be used. The SLC mission was that one was to destroy the chain mail curtain under the breakwater bridge, the other was to go in and add havoc the confusion by attacking the submarine base at Manoel Island. Of particular note the mission which was conducted by the elite X Mas was led by Major Tesei, one of the designers of the SLC.
Disaster immediately started of as one of the SLCs had problems in the rudder and delayed the operation, Tesei tried to arrange the problem but had to leave as is as time was pressing. He and his companion travelled to the bridge but a Maltese Gunner [Zammit] at St Elmo spotted the wake of water made by the heads and opened fire, resulting in an explosion. Both men were KIA, and the following morning parts of a facemask with hair was found near the breakwater after the battle. Interesting in the 60s the British navy scuba team found the SLC in the grandharbour. Seems Tesei and his comrade were KIA by the explosion of the bomb hitting the surface of the sea.
The other SLC tried to limper to Manoel island but instead made it to St Julians, they scuttled the SLC and swam to shore to be captured as POW. The SLC was salvaged and sent to Britain for evaluation and from it the Brits designed the Charioteer.
What happened next is part of our history ...