Question Mark (aircraft) Question Mark (aircraft) Question Mark (""?"") was a modified Atlantic-Fokker C-2A transport airplane of the United States Army Air Corps. In 1929, commanded by Major Carl A. Spaatz, it was flown for a flight endurance record as part of an experiment with aerial refueling. "Question Mark" established new world records in aviation for sustained flight (heavier-than-air), refueled flight, sustained flight (lighter-than-air), and distance between January 1 and January 7, 1929, in a non-stop flight of more than 150 hours near Los Angeles, California. Following the record-setting demonstration, the C-2A was returned to transport duties. In 1931 more powerful engines replaced
150 personae non gratae of Turkey Italy, on 16 May 1926. The list was created on 23 April 1924 by the Grand National Assembly of Turkey, and revised on 1 June 1924. By targeting the former Imperial ruling-elite, it reaffirmed the political and cultural break between the Empire and the Republic. The preliminary list contained 600 individuals. 150 personae non gratae of Turkey The 150 personae non gratae of Turkey () is a list of high-ranking personages of the Ottoman Empire who were exiled from the Republic of Turkey shortly after the end of the Turkish War of Independence with the Armistice of Mudanya on 11