Nakajima Sakae 12 radial engine, 709 kW (950 hp)

Shown here on one of the few Mitsubishi A6M Zero's still flying (x-133 Commemorative Air Force Midland Texas). The engine was designed by Nakajima after acquiring a license for the French Gnome-Rhone 14K. "Sakae" was the navy designation; the army called the first of the series the Ha-25 (ハ25) and later versions were designated Ha105, Ha115. Navy designations were NK1 Sakae 10, 20 and 30 series.A total of 21,166 were made by Nakajima; 9,067 were manufactured by other firms.