Blackhawk was a 1950 ABC

American Broadcasting Company

The American Broadcasting Company is an American commercial broadcasting television network. Created in 1943 from the former NBC Blue radio network, ABC is owned by The Walt Disney Company and is part of Disney-ABC Television Group. Its first broadcast on television was in 1948...

 radio series adapted from the long-run Blackhawk

Blackhawk (comics)

Blackhawk, a long-running comic book series, was also a film serial, a radio series and a novel. The comic book was published first by Quality Comics and later by DC Comics. The series was created by Will Eisner, Chuck Cuidera, and Bob Powell, but the artist most associated with the feature is Reed...

comic book about the team of adventurous World War II aviators.

According to broadcasting researcher Harrison Boyd Summers

Harrison Boyd Summers

Harrison Boyd Summers was a broadcast historian, educator and a pioneer in audience surveys of radio listeners.After several years as an advance man for the Chautauqua circuit, Summers was awarded a Ph.D. in economics from the University of Missouri in 1931...

, author of the major reference work, A Thirty-Year History of Programs Carried on National Radio Networks in the United States, 1926-1956, Blackhawk was an unsponsored half-hour show that aired on Wednesdays at 5:30pm.

With Michael Fitzmaurice

Michael Fitzmaurice

Michael Fitzmaurice was a radio actor, best known for his portrayal of Superman.Born in Chicago, the baritone-voiced Fitzmaurice was heard often on radio dramas during the 1940s as both announcer and actor. From 1944 to 1947, he was the host of Mutual's Quiz of Two Cities...

 (1908-1967) portraying team leader Blackhawk, the series premiered September 13, 1950 and concluded a few months later on December 27, 1950. That same year, Fitzmaurice did the voice of Superman on ABC.

Radio historian Jim Harmon

Jim Harmon

James Judson Harmon , better known as Jim Harmon, was an American short story author and popular culture historian who wrote extensively about the Golden Age of Radio. He sometimes used the pseudonym Judson Grey, and occasionally he was labeled Mr...

 summoned his memories of the Blackhawk series:

I heard the Blackhawk radio show when it was on ABC, probably about every one of its few episodes. Superman was on twice a week, and Blackhawk once a week in that time slot... I do recall Blackhawk had one different companion each episode - sometimes André, sometimes Olaf, etc. But it was the same actor, just changing his accent. The show seemed to be "okay," perhaps actually better than the short-lived half-hour Captain Midnight.

By checking the schedules of the daily "On the Radio" feature in The New York Times

The New York Times

The New York Times is an American daily newspaper founded and continuously published in New York City since 1851. The New York Times has won 106 Pulitzer Prizes, the most of any news organization...

, radio researcher Irene Heinstein determined there were 16 episodes in the run, adding, "The programs in that time slot Monday-Friday were: Monday, Space Patrol, Tuesday, Superman

The Adventures of Superman (radio)

The Adventures of Superman was a long running radio serial that originally aired from 1940 to 1951, adapted from the DC Comics character. ....

, Wednesday, Blackhawk, Thursday, Superman, Friday, Space Patrol. The next listing for Blackhawk should have been January 3, 1951. However, in its time slot appeared Big Jon and Sparky, which held that time slot Monday-Friday throughout January, when I stopped looking. Checking on Monday, January 1, and Tuesday, January 2, Space Patrol and Superman had their final listings in that time slot rotation, which began Monday, September 11, 1950 on WJZ."