Ira Dyer, 1925-2016, SB 1949, SM 1951, PhD 1954, in physics, Massachusetts Institute of Technology, was a vice president of Bolt, Beranek and Newman, Inc. from 1951 to 1970. During those years he founded and directed three divisions of the company and engaged in scientific research and development largely concerned with the sea. He came to MIT in 1971 as professor, and was head of the Department of Ocean Engineering, 1971-1981. He was associate director of the MIT Sea Grant Program, 1971-1973, and then director, 1973-1975. In 1978 he headed an international team on a month-long expedition to the Arctic to conduct acoustic experiments in the Canada Basin.