Thomas N. Shaffer, 62, an engineer who lived in Silver Spring, was killed Sunday while competing in an auto race at Summit Point Speedway in West Virginia.

Dr. S. Preston Childress, Medical Examiner at Winchester (Va.) Memorial Hospital where Mr. Shaffer was taken after the accident, said Mr. Shaffer died of "multiple head injuries" while en route to the hospital.

According to West Virginia state police, Mr. Shaffer's Datsun 2000 was traveling "about 130 mph" when it spun out of control during the first lap of a Mid-Atlantic Road Racing Series (MARRS) event for D-production authomobiles.It "flipped several times" and Shaffer was pinned beneath it. No other cars were involved in the accident.

Track steward David Keppel said the accident may have been caused by a broken rear axle. Mr. Shaffer had driven competitive for 12 years.

Mr. Shaffer was born in Washington and graduated from old Central High and the University of Maryland. He had worked for the last 10 years with the Westinghouse Corporation as a design engineer. At the time of his death, he was on permanent loan to the T-Comm Company of Columbia, Md.

Mr. Shaffer is survived by a wife, Frances, of the home in Silver Spring; three daughters, Patricia Wheeler, of Silver Spring; Kathleen Mulgrew, of Boston, Mass; Gail Gray, of Falls Church, Va.; 10 grandchildren; a brother, Charles Shaffer, of Rockville, and a sister, Louise Simmons, of Washington.