Keywords: Spanish frigate SPS Santa Maria (F 81), BNS Rademaker (F 49), and the ARA Almirante Brown (D 10).jpg 051024-N-4374S-002 Atlantic Ocean Oct 24 2005 - The Spanish frigate SPS Santa Maria F 81 top the Brazilian frigate BNS Rademaker F 49 center and the Argentinean destroyer Almirante Brown D-10 steam in formation off the coast of Brazil Naval forces from Argentina Brazil Spain Uruguay and the United States are participating in UNITAS 47-06 Atlantic phase This is a U S Southern Command-sponsored exercise that enhances friendly mutual cooperation and understanding between participating navies by enhancing interoperability in naval operations among the nations of the Western Hemisphere http //www navy mil/view_image asp id 29394 U S Navy photo by Photographer ™s Mate 2nd Class Michael Sandberg RELEASED PD-USGov-Military-Navy ARA Almirante Brown D-10 SPS Santa MarĂa F81 F Rademaker F-49 UNITAS 47-06 Aerial photographs of naval ships of Argentina |