==External links==* North American XB-70A, XB-70A Construction pages on National Museum of the USAF site* NASA/DFRC photos and videos* North American XB-70A Valkyrie presentation 1965 on youtube.com
==Liên kết ngoài==* North American XB-70A, XB-70A Construction pages on National Museum of the USAF site* NASA/DFRC photos and videos* North American XB-70A Valkyrie presentation 1965 on youtube.com