[2] The Hop Harrigan character originated in All American Comics, and the radio program was adapted from that publication.
[3] Harrigan was a young aviator, and most of the show's plots dealt with his battles with the Axis powers during World War II.
"[5] The program was produced in cooperation with the Air Training Corps of America and was endorsed by the Office of the Adjutant General of the Army.
The only other character appearing regularly was Tank Tinker, Harrigan's mechanic, who was played first by Ken Lynch and later by Jackson Beck.
[11] In the program's second month on the air, the staff of Hop Harrigan received 124,264 letters as people wrote in for premiums that were offered to listeners.