![](https://www.historynet.com/wp-content/uploads/2009/05/Connie121-960_640.jpg)
The US Navy and the Air Force, both used the Constellation in a number of military roles. From executive transport to specialized electronic reconnaissance versions of the airliner like this US Air Force RC-121D. (Lockheed Martin)
The US Navy and the Air Force, both used the Constellation in a number of military roles. From executive transport to specialized electronic reconnaissance versions of the airliner like this US Air Force RC-121D. (Lockheed Martin)