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Walton McCarthy is a mechanical engineer with a BS from Montana State University and a member of the American Society of Mechanical Engineers, the American Society of Testing and Materials, and the Composite Fabricators Association. He is also a licensed pilot and HAM radio operator. Some of his contributions to the fields of engineering and civil defense include the following: a new rating system for underground shelters to determine radiation doses inside a shelter known as the Total REMs in Shelter system or TRS, the Overpressure Choking Theory used to negate the effect of blast valves, fiberglass structures composed of multiple compound curves designed to resist multiple external pressures, and developing various underground shelter emergency escape methods. McCarthy has also worked with many government specialists in developing practical data for residential, corporate, and military applications.

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