Computer Aided Design of Aerospace Concepts (CADAC) Special Notice: While the CADAC web server is down, you may apply for the complementary CADAC CD with FORTRAN and plotting programs at zipfelATeglin.af.mil (replace AT with @ in the e-mail address) , by providing your business USPS mailing address (no private address please), your e-mail address, and your intended use of CADAC.