The TR-1700 class submarines also know as the Santa Cruz class were built in Germany for the Argentine Navy in the 1980's. The program consisted of 6 ships; two built in Germany by Thyssen Nordseewerke in Emden and the remaining four to be built in Argentina by Astillero Domecq Garcia. The German built boats were delivered in 1984-85 but the Argentine built ships were suspended due to the Argentinian economic crisis of the 1980's. Two of the boats were started and efforts have been made to sell them to third countries. The boats have a diving depth of 270m, a 30 day endurance and are fitted with an automatic torpedo reload system.