SMS U63-65, 1916
These 3 U-boats were a wartime design for Germany and saw great success. Together, they sank 171 ships. According to Uboat.net, U-63 survived the war, U-64 was sunk in mid-1918, and U-65 was scuttled in Pola at war's end.
This plan is large and in beautiful color -- in 1:50 scale.