Given the question: The Yurka class were a group of minesweepers built for the Soviet Navy and export customers between 1963 and 1970. The Soviet designation was Project 266 Rubin. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
The answer is:
Mean Of Transportation