William L. Ean has assumed the position of director of marketing for Hydro Drive Corporation according to an announcement by Langdon Simons, president of the Seattle marine propulsion equipment firm.

Mr. Ean joins Hydro Drive from the Boeing Company where he has been B-52 interface manager representing Boeing in technical interfaces with associate contractors and Air Force agencies. Prior experience with Boeing includes systems engineering on SRAM, C5A proposal, and Minute Man projects.

Before joining Boeing in 1962, Mr. Ean was assistant to the president of Coolidge Propeller Company where he had both design and sales functions. Previously, he was a field engineer for Fairbanks Morse.

Mr. Ean holds a B.S. degree in electrical engineering from Oregon State University.