Because Lingo tried to fill orders for everyone, the Oorang strain size was never standardized. Airedales weighing from 40 to 100 pounds were produced, but for the most part they were approximately 50 pounds and 22 to 24 inches at the shoulder. In the United States, the male Airedales measure 40 to 70 pounds, with the Oorang strain typically in the 80 to 120 pound range. Muggs, 'The Dog That Bit People' owned by James Thurber as described in My Life and Hard Times.
James Thurber
James Thurber