Restoration crews at the National Museum of the US Air Force backed the XB-70 Valkyrie into the museum’s new fourth building on 27 October 2015. The aircraft – the world’s only remaining XB-70 – will be displayed in the Research & Development Gallery, one of four galleries in the new 224,000 square foot addition. The building is scheduled to open to the public in June 2016. After budget cuts, only two XB-70s were built in the early 1960s, not as bombers, but as large supersonic research aircraft. The then-Lockheed-Georgia Company built the center fuselage sections for the XB-70s as a subcontractor to North American Aviation. The sections were built under a circus tent erected on the factory floor in the company’s Marietta, Georgia, facility.
