![](https://www.historynet.com/wp-content/uploads/2018/04/R2800-school-scaled.jpg)
U.S. Army Air Forces ground crewmen get a close-up look at one of a B-26 Marauder’s R-2800s at Laughlin Army Air Field in Texas. (National Archives)
U.S. Army Air Forces ground crewmen get a close-up look at one of a B-26 Marauder’s R-2800s at Laughlin Army Air Field in Texas. (National Archives)