Please answer the following question: The 18 class (formally R.285 class) was a class of 0-6-0T wheel arrangement steam locomotive built by Vulcan Foundry for the New South Wales Government Railways of Australia. 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?
A:
Mean Of Transportation