the "katanpää"-class mine countermeasure vessels were initially referred to as the mcmv 2010 class after the mine countermeasure development project and "mito class" after the finnish word for mine countermeasures, "miinantorjunta". as naval vessel classes of the finnish navy are traditionally named after the lead ship of the class, the new class of mine countermeasure vessels received its final name when the first vessel was named "katanpää" (pennant number 40) on 16 june 2009. the second vessel of the "katanpää" class received its name, "purunpää" (41), on 26 september 2010 and the third one was named "vahterpää" (42) on 3 november 2011.