This gave them a range of  at 10 knots while surfaced. They had a designed diving depth of . The submarines were armed with four 18-inch (450 mm) torpedo tubes in the bow for the six torpedoes they carried.
The submarines could operate at a speed of 10 knots when surfaced and had a maximum diving depth of . They carried four 18-inch (450 mm) torpedo tubes, located at the bow, for launching six torpedoes.