Attop International, LLC, 15318 Valley Blvd, La Puente, CA 91746, US

Tri-Models, located in Huntington Beach, Calif., and established in 1972, employs professional and certified engineers and technicians. It specializes in precision hardware designing and fabrication of wind tunnel models, research and development in rapid prototyping, contoured tooling and offers instrumentation and propulsion test support services to the aerospace and related industries. The company s engineering department has expertise in utilizing various computer-aided design and manufacturing software applications, such as CATIA, Euclid, Mastercam and CADKEY that help in solid modeling and surface and volumetric analysis. Additionally, it operates a machine shop that is equipped with computerized numerically controlled mill machines. Tri-Models also has prototype machinists that have experience in manufacturing and assembly of various forms of high and low speed wind tunnel models and propulsion test hardware.