Flight training
After his eye injury healed, he applied for pilot training with the Air Service on March 13, 1926. In August, he began Primary and Basic flight training at Brooks Field, Texas, went on to Advanced at Kelly Field on February 28, 1927, where he received a rating of Airplane Pilot on August 12, 1927. Craw joined the 1st Pursuit Group at Selfridge Field, Michigan, transferred his commission to the Air Corps on March 21, 1928, and was promoted to first lieutenant on January 3, 1930. Craw returned to the Air Corps Training Center at San Antonio, Texas, as an instructor of Basic Flight training at Duncan Field, and was reassigned in January 1929, to instruct Advanced Flight Training.