''The anti-submarine patrol bomber developed from the 17-Shi specification, Toukai." <br>
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A fully-fledged land-based anti-submarine patrol aircraft developed from the 17th experimental patrol aircraft, the "Toukai". <br>
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''The 901st Naval Air Group was equipped with this aircraft, and they diligently carried out their duty of suppressing enemy submarines as the war situation deteriorated at a great cost.''' <br>
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The 901st Air Group, which was exclusively equipped with these aircraft,<br>
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made many sacrifices conducting anti-submarine patrols to counteract enemy submarines amidst the deteriorating state of the war and loss of air superiority.