Keywords: USS Los Angeles (ZR-3), USS Patoka (AO-9) and USS Lexington (CV-2) off Panama in 1931.jpg The U S Navy airship USS Los Angeles ZR-3 center distance moored to the fleet oiler USS Patoka AO-9 off Panama during Fleet Problem XII circa February 1931 The aircraft carrier USS Lexington CV-2 at right and a battleship are also present Official U S Navy photo http //www history navy mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/NH-65000/NH-65300 html NH 65300 from the U S Navy http //www history navy mil Naval History and Heritage Command ca 1931-02 U S Navy PD-USGov-Military-Navy USS Los Angeles ZR-3 USS Lexington CV-2 USS Patoka AO-9 Fleet Problem |