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
Parking Non-Stop link below). In 2004, Parking Non-Stop were personally invited to support German Post-industrial group Einstürzende Neubauten at their first Dublin concert. Soon afterwards, the group came to the attention of Faust's Hans Joachim Irmler, who invited them to perform at his Klangbad Festival in Scheer, southern Germany in 2007. The following year, Irmler released the group's debut album "Species Corridor" on his Klangbad label. The album was well received and drew positive reviews from the music press. Interest from Germany continued with the group being invited to play a short tour there in 2009 and subsequently being invited to record