At Cincinnati, Armstrong was University Professor of Aerospace Engineering. He took a heavy teaching load, taught core classes, and created two graduate-level classes: aircraft design and experimental flight mechanics. He was considered a good teacher, and a tough grader. His research activities during this time did not involve his work at NASA, as he did not want to give the appearance of favoritism; he later regretted the decision. After teaching for eight years, Armstrong resigned in 1980. When the university changed from an independent municipal university to a state school, bureaucracy increased. He did not want to be a part of the faculty collective bargaining group, so he decided to teach half-time. According to Armstrong, he had the same amount of work but received half his salary. In 1979, less than 10% of his income came from his university salary. Employees at the university did not know why he left.
At Cincinnati, Armstrong was University Professor of Aerospace Engineering He took a heavy teaching load, taught core classes, and created two graduate-level classes: aircraft design and experimental flight mechanics. He was considered a good teacher and a tough grader. His research activities during this time did not involve his work at NASA, as he did not want to give the appearance of favoritism; he later regretted the decision. After teaching for eight years, Armstrong resigned in 1980. When the university changed from an independent municipal university to a state school, bureaucracy increased. He did not want to be a part of the faculty collective bargaining group, so he decided to teach half-time. According to Armstrong, he had the same amount of work but received half his salary. In 1979, less than 10% of his income came from his university salary. Employees at the university did not know why he left.