American Line, Inc., a subsidiary of C.A. Robertson, Inc., 1 Marine Park, Haddam, Conn., has applied to the Maritime Administration for a Title XI guarantee to aid in financing the construction of a 165-foot cruise vessel intended for operation on the inland and coastal waterways of the U.S. East Coast.

Chesapeake Shipbuilding, Inc., Salisbury, Md., is the proposed builder, with delivery estimated for April 1982. The requested guarantee is for $2,850,000, or 75 percent of the vessel's estimated cost of $3,800,000.