Todd Shipyards Corporation has announced agreement in principle, to acquire Designers & Planners, Inc., New York, a naval architectural and marine engineering concern specializing in the design of containerships and oceanographic research vessels.

John T. Gilbride, president of Todd, said the additional capability represented by Designers & Planners would be needed in Todd's day-to-day operations and expected construction and conversion programs.

He added that Designers & Planners, which has offices in New York and in Galveston, would continue to operate independently and serve all segments of the maritime industry.