Charles Paunelle Roane, 74, a naval architect and engineer with the Naval Sea Systems Command who was project coordinator and technical director of the helicopter landing ship program when he retired in 1972, died of cancer May 16 at his home in Delray Beach, Fla.

Mr. Roane, who was born in Denton, Md., and raised in Newport News, Va., graduated from Virginia Polytechnic Institute with a degree in mechanicial engineering. He earned a bachelor's degree in business at Benjamin Franklin University in Washington and did graduate work at Cornell University and the Navy Postgraduate School in Monterey, Calif.

During World War II, he served in the Navy and was stationed at the Philadelphia Navy Yard. He left the service with the rank of lieutenant commander. He began his civil service career in the old Bureau of Ships, the predecessor of the Sea Systems Command, as an associate engineer.

Over the years, Mr. Roane worked on several aircraft carriers, including the Enterprise, which is nuclear-powered, and the Hornet, Essex, Forrestal and Midway, which are conventionally powered. That work led to his assignment to the helicopter landing ship project.

For six years after his retirement, Mr. Roane was a consultant to the Navy and Justice departments in connection with cost overruns incurred by various defense contractors.

In 1971, he received the Silver Medal Award of the Association of Senior Engineers, of which he was a member. He twice received the Superior Civilian Service Award from the Naval Sea Systems Command.

In addition to the Association of Senior Engineers, Mr. Roane's professional memberships included the American Society of Naval Architects and Marine Engineers and he was a registered engineer in the District of Columbia. He also was a member of the Bethesda Country Club.

He lived in Bethesda until 1978, when he moved to Delray Beach.

Survivors include his wife, Dale Page Roane of Delray Beach; three children, Joan Smith of Gaithersburg, Thomas P. Roane of Derwood, Md., and Paula R. Scanlon of Bethesda; one brother, Richard Roane of Keswick, Va., and four grandchildren. A son, Charles P. Roane Jr., died in 1969.