Carl A. Turmo, 71, who retired in 1970 as an administrative judge and senior vice chairman of the Armed Services Board of Contract Appeals, died of cancer Friday at Georgetown University Hospital.

He had joined the board as an administrative judge in 1959.

Except for about six years of private law practice in Stoughton; Wis., before World War II, judge Turmo was an attorney and judge for military departments and services within the Department of Defense and one of its predecessors, the old War Department.

After Army service in Germany at the end of World War II, where he achieved the rank of major, he remained in Germany as a civilian judge on the U.S. Military Government Courts. He subsequently served as a chief presiding judge of district courts for the U.S. Courts for Germany, as an associate justice for the U.S. Court of Restitution Appeals for Germany and as an associate judge of the U.S. Court of Appeals for Germany.

He returned to the U.S. in 1955 and was an attorney in the Office of the general counsel for the Navy Bureau of Yards and Docks until 1958.

Judge Turmo was born in New York City. He graduated from Luther College in Decorah, Iowa, and earned a law degree from the University of Wisconsin's law schol in 1935.

A former resident of Arlington, he and his wife, Eleanor C., moved to Cocoa Beach, Fla., in 1978.

Besides his wife, survivors include his mother, Augusta Everson Turmo, and a sister, Sigried Bjorn, both of Stoughton.

The family suggests that expressions of sympathy be in the form of contributions to the American Cancer Society.