 German submarine U-503

German submarine "U-503" was a Type IXC U-boat of Nazi Germany's "Kriegsmarine" during World War II.The submarine was laid down on 29 April 1940 at the Deutsche Werft yard in Hamburg as yard number 293, launched on 5 April 1941 and commissioned on 10 July 1941 under the command of "Kapitänleutnant" Otto Gericke.