Partner, Flack + Kurtz, Mechanical Engineers, New York, NY, 1969-2001. Flack and Kurtz developed into a firm with offices around the world and 350 employees. Flack retired from practice in 1996. In 2000, it announced its merger with the WSP Group of London, UK, and became known as "WSP Flack + Kurtz." Flack has been interested in raising attention among engineers on green building practices.

Juror, Society for Design Administration, Canstruction New York Competition, New York, NY, 2006.

B.S., Mechanical Engineering, New York University, New York, NY, 1951;