Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Sleipner-class corvette - The Sleipner-class corvette was a part of the Royal Norwegian Navy's 1960 fleet plan. It was intended to build five ships of the class but because of economic problems only two were built; Sleipner and ger.Sleipner was built by Nylands Mekaniske Verksted Oslo and ger by Aker Mekaniske Verksted Oslo and handed over to the Royal Norwegian Navy between 19651967.
The answer is:
Mean Of Transportation