Retired Navy Capt. Bennett Franklin Avery, 75, former editor of the Armed Forces Medical Journal and national coordinator of medical education for the National Defense Program, died Saturday in Copenhagen, Denmark.

He and his wife, Margaret Scales Avery, had moved there from Bethesda about three years ago.

Capt. Avery joined the Navy Medical Corps in 1950 as the medical officer of the Naval Receiving Station at Norfolk. Two years later he was assigned to the Bureau of Medicine and Surgery in Washington as an associate editor of the Armed Forces Medical Journal. From 1955 to 1958, he was its editor.

He held his last position with the National Defense Program from 1958 to 1966, when he retired.

Born in Vassar, Mich., he was a graduate of the University of Michigan, where he also earned a medical degree and a master's degree in science. He was a Rockefeller fellow there and at the University of Chicago Graduate School.

Capt. Avery was a professor of anatomy at the American University Medical School in Beirut, Lebanon, before becoming dean of anatomy at the Boston University School of Medicine in 1940. He then served from 1944 until 1949 as adviser to the Iranian Ministry of Health in Teheran.

He had served with the Red Cross Ambulance Corps in France in World War I.

He was a member of the American Medical Association, the American Association for the Advancement of Science, the Society of Experimental Biology and Medicine, the Royal Society of Health of England, the Association of Military Surgeons, the U.S. Naval Institute and the American public Health Association.

In addition to his wife, he is survived by two sons, Dr. Gordon Bennett Avery, of Bethesda, and Dr. John Scales Avery, of Copenhagen; three sisters, Mrs. Robert Moore, of Tuscumbia, Ala.; Mrs. Woodward Neithammer, of Tacoma, Wash., and Mrs. Quentin Kerns, of California, and eight grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Children's Hospital National Medical Center here.