	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 .