The Schütte-Lanz D.I was a German single-seat biplane fighter often said to be Germany's first biplane attack aircraft. The D.I was light-weight and made of wood covered in fabric apparently based on the British design of the Sopwith Tabloid. 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?
Mean Of Transportation