 SM U @-@ 3 or U @-@ III was the lead boat of the U @-@ 3 class of submarines or U @-@ boats built for and operated by the Austro @-@ Hungarian Navy ( German : <unk> und <unk> Kriegsmarine or <unk> Kriegsmarine ) before and during the First World War . The submarine was built as part of a plan to evaluate foreign submarine designs , and was built by Germaniawerft of Kiel , Germany . 
