Grant R. Hagen has joined Designers & Planners, Inc. as principal naval architect. The announcement was made recently by Ferd Serim, president of the company. Designers & Planners, Inc. is a firm of naval architects and marine engineers with offices in New York, Washington, Texas and Philadelphia.

In his new capacity, Mr. Hagen's responsibilities will be primarily in the area of ship hydrodynamics and ship motions. He reports to Carlos Tomassoni, director, ship design and marine economics.

Mr. Hagen is a graduate of the University of Michigan, where he earned BSE degrees in naval architecture and marine engineering, and in civil engineering. He has 38 years of experience as a naval architect, the last 36 at the David W. Taylor Naval Ship Research and Development Center where he reached the position of head, Ship Dynamics Division.