like all post-"e8" british e-class submarines, "e13" had a displacement of at the surface and while submerged. she had a total length of and a beam length of . she was powered by two vickers eight-cylinder two-stroke diesel engines and two electric motors. the submarine had a maximum surface speed of and a submerged speed of . british e-class submarines had fuel capacities of of diesel and ranges of when travelling at . "e13" was capable of operating submerged for five hours when travelling at .