Answer the following 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. Ross R-2 Ibis -  The Ross R-2 Ibis was a single seat mid-wing gull winged glider that was designed by Harland Ross in about 1938 under a commission from the Soaring Society of America. The sole example was destroyed in 1940.
Answer:
Mean Of Transportation