Alexander B. Winick, 98, who retired from the Federal Aviation Administration in 1975 as deputy director of the system research and development service, died Nov. 2 at his home in Bethesda of aspiration pneumonia and dementia.

The death was confirmed by his son Jeremy R. Winick.

During World War II, Mr. Winick was a civilian instructor for the Army Air Forces in aeronautical radio and navigation.

After serving on active duty in the Navy toward the end of the war, he joined the Navy Department and worked on establishing common civil and military traffic control and navigation systems. Mr. Winick joined the FAA in 1958.

In retirement, he did consulting work on the development and implementation of all-weather landing systems and navigation. He retired in 1994.

Alexander Brandt Winick was a New York native and a 1936 physics graduate of the City College of New York.

He was a fellow and past president of the Institute of Navigation. His memberships included the National Audubon Society. He skied into his 70s.

Survivors include his wife of 70 years, Sari Marcus Winick of Bethesda; two sons, Paul D. Winick of Washington and Jeremy R. Winick of Westminster, Colo.; two grandchildren; and three great-grandchildren.

— Adam Bernstein