''Derived from floatplanes, the "Zuiun" was developed as a reconnaissance plane able to dive-bomb.<br>This aircraft had its engine swapped to a more powerful Kinsei 62, being the latest "Zuiun Kai version".
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''The "Zuiun" was a multirole reconnaissance seaplane capable of carrying out dive-bombing.<br>This is a state-of-the-art "Zuiun Kai Model" high-performance multi-purpose plane equipped with air combat flaps, had its engine replaced with the more powerful Venus 62 type engine.