Keywords: Lockheed SR-71 in flight (SN 61-7974) 061122-F-1234P-052.jpg en Lockheed SR-71 in flight SN 61-7974 user Stahlkocher US Government PD-USGov SR-71 Blackbird in flight Lockheed SR-71 in flight Aerial photographs of military aircraft in flight Lockheed SR-71 in flight |