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. Anatra DS - The Anatra DS or Anasal was a two-seat reconnaissance aircraft developed from the Anatra D (Anade). It was built in the Anatra factory in Odessa in the Russian Empire and flown during World War I and by both sides during the Russian Civil War. The main difference from the previous model was the replacement of a 100 hp rotary engine with a much more powerful 150 hp Salmson radial engine which improved performance.
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