The design's stated range is 4,000 nautical miles at 14 knots, with five 127 mm guns in two twin mounts and one single mounting, plus two triple 610 mm torpedo mounts. The single gun sits ahead of a twin mounting, a position criticised for adding weight without enough benefit. Heavy torpedo equipment mounted high on the ship also burdens stability. One proposed alternative removes the single gun, lowers the torpedo equipment and places antiaircraft guns between the funnels. The suggested changes are offered without a formal weight calculation.
Notable Point · 57:47-59:40
Hatsuharu's gun layout and topweight
Five guns and two triple torpedo mounts concentrated heavy armament on Hatsuharu, while its stated cruising range remained 4,000 nautical miles at 14 knots.