The Letord Let.1 (also spelled Letort in some publications) was a military aircraft produced in France during the First World War primarily as a long-range reconnaissance aircraft. Later versions designated Let.2 through Let.7 were used in a variety of roles including bomber and bomber escort. All were three-bay biplanes of unequal span with prominent and characteristic negative stagger on their wings. 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 to this question is:
Mean Of Transportation