The B-26F Marauder's most significant modification was its redesigned wing structure. By increasing the angle of attack by 3.5 degrees, the engines gained a slight upward tilt. This change shortened the takeoff run by about 90 meters, reduced takeoff speed, and decreased landing distance—though it slightly lowered the maximum flight speed. The B-26F also featured a new ventilation mast for fuel tank air access and a modified windshield design. Production began at the Baltimore factory in late February 1944, with the first units reaching the US 9th Air Force in Great Britain by spring 1945. Additional bombers were allocated to the 12th Air Force in the Mediterranean theater. The B-26F Marauder saw active combat service across Europe, with 300 units manufactured in total (serial numbers 42-96229 through 42-96528).