The -class motor torpedo boats (named after ) were two World WaràIâÂÂera Italian MAS boats, also known as MAS boats, which were in service with the Finnish Navy. The vessels, later designated the class in Finnish service, were launched in 1916 at the Fratelli Orlando Shipyard in Leghorn, Italy, and were the 2nd series of Orlando--type MAS boats. In 1917, they were commissioned in the as MASà220 and MASà221.
MASÃÂ 220 and MASÃÂ 221 were acquired by the Finnish Government in 1920, and were commissioned in the Finnish Navy as MTVÃÂ 1 and MTVÃÂ 2 in 1922 but later renamed to and . They saw service in World WarÃÂ II. When dashing forward at full speed, the vessels sprayed water high in the air, earning the nickname "fountains" from Finnish sailors.
On the night of October 1âÂÂ2, 1941, âÂÂtogether with âÂÂwas patrolling east of Gogland when it came across large, stationary Soviet naval ships. According to some Finnish sources, missed with her first torpedo, having mistaken the foam painted on a Soviet warship's bow for an indication that it was actually moving. Aàsecond torpedo hit a amidship and sank her. According to other sources, and allegedly sank two Soviet minesweepers as a result of this attack. In reality, according to Soviet sources and modern Russian research, and made an abortive attack on the anchored in the bay of Gogland Island at the time.