In which year did a Boeing B-50 Superfortress make the first non-stop flight around the world?

"Lucky Lady II" is a United States Air Force Boeing B-50 Superfortress that became the first airplane to circle the world nonstop. Its 1949 journey, assisted by in-flight refueling, lasted 94 hours and 1 minute. The plane later suffered an accident, and today only the fuselage is preserved.

The "Lucky Lady II" was equipped with 12.50-caliber (12.7mm) machine guns. For its circumnavigation mission, a fuel tank was added in the bomb bay for extra range. The mission required a double crew with three pilots, under the command of Capt. James Gallagher. The crews rotated in shifts of four to six hours.

Bearing a total crew of 14, the aircraft started its round-the-world trip at 12:21 p.m. on February 26, 1949. It took off from Carswell Air Force Base near Fort Worth, Texas, and headed east toward the Atlantic Ocean. After flying 23,452 mi (37,742 km), the aircraft passed the control tower back at Carswell on March 2 at 10:22 am, marking the end of the circumnavigation.