SES 200

In 1984, the Navy procured a surface effect craft from Textron Marine Systems and had it lengthened to 160 feet, creating a 200-ton high length-to- beam ratio ship for research purposes. Naval Sea Systems Command procured a 110-foot commercial SES and increased its length by installing a 50-foot hull extension amidships.

On 06 November 1984 the Coast Guard accepted operational control from the Navy of the SES-200, a Surface Effect Ship, for five months of operations evaluations.