John Cleek has over 23 years of experience in aerospace engineering with a focus on weight and balance analysis, using CAD software like Catia and Unigraphics to extract mass property data and perform calculations. He has worked for companies such as Cessna, Sikorsky, Bombardier, and General Dynamics on military and commercial aircraft programs, maintaining weight and balance databases and supporting certification. Cleek has a B.S. in Aerospace Engineering and is proficient in various CAD and PLM systems used for mass properties analysis.