Ca.1955: TOS USAF and assigned to the 93rd Bombardment (Heavy) Wing (SAC), Castle AFB, CA. 1/57: With two other B-52s, it made the first round-the-world flight for heavy bomber aircraft and were refueled by KC-97s. 1965: Flown to Wright Field, Wright-Patterson AFB, OH, for display at the future Air Force Museum location at Wright Field. As one of the outside aircraft, it was opened for display in July 1971. 1978: Replaced by B-52D 56-0665 and removed from display. 1984: Scrapped by the museum. The nose section was eventually acquired by Walter Soplata for his collection in Newbury, OH.

Participant in Operation Power Flight, 1957 non-stop around-the-world-flight.

As part of SAC Operation Power Flight, this B-52 became the first jet to circle the world non-stop (along with 53-0397 & 398) named 'Lucky Lady III', in a dramatic display of air power intended to strike fear into any potential enemy. On 16.1.57 they left Castle AFB, flying 24,325 miles and landing at March AFB 45hrs later, after four KC-97 refuellings. Joined 95 BW in 1959 when they re-equipped from B-36s and named 'City of El Paso'. B-52Bs were withdrawn in 1966; 394 was scrapped at WP AFB in 1984