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
Never Stop Doing What You Love common" and urging them to "never stop doing what you love." McCartney received considerable criticism for his celebrity endorsement of Fidelity Investments, which some considered to be a vulgar attempt to increase his already astounding wealth. The cover features Paul playing his famous Höfner "Beatle" bass. The label side of the CD is printed to look like a vinyl record. The tracks for the compilation were chosen by McCartney and an executive from Fidelity, which had been given rights to McCartney's legacy catalog. All songs written by Paul McCartney, and performed by Paul McCartney, except where noted. Never Stop Doing