Garzke and Dulin project that a finalized No. 3 design would have had a full-load displacement of , which would have included lengthening the hull to with the same beam of 35.5 m. At these dimensions, the draft would have been , and with , the ship could have been propelled at a speed of at least 30 knots. They estimate that the projected battery of twenty-four 100 mm guns would have been cut in half, in line with the other variants, and eighteen 37 mm guns would have been carried. They expect the belt would have been increased to a maximum of with an incline of 15.5 degrees from the vertical to improve its resistance to long-range fire. According to their design study, the main deck would have been reduced slightly, to 170 mm over the magazines and over the propulsion machinery spaces.