The Savoia-Marchetti SM.89 was a bomber aircraft made by Savoia-Marchetti. The SM.89 was developed by Alessandro Marchetti and the prototype (MM.543) made its first flight in September 1941 in Vergiate with the test pilot Lieutenant G. Algarotti behind the sticks. 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