Hi! The Nippi L7P1 was a only Japanese designed amphibian which built before WWⅡ referred to Fairchild A942-B amphibian(LXF 1) as 13-shi light transport(十三試小型輸送機). No.1 and No.2. Aircraft were completed in February 1942, tested by IJN. It had stall tendency because of weight increase by wooden main wing. Max speed was same as calculated value, take off was little difficult, not employed by IJN.
Number of Crew/Passenger:3/8, Engine:Nakajima Kotobuki(寿) 41, Air cooling 9 cylinder, 710hp in take off, Wing span;19.6m, Length:14.0m, Height:4.7m, Wing Area:50.1m2, Empty Weight:3,705kg, MTOW:5,899kg, Wing Loading:117.7kg/m2, Power Loading:4.88kg/hp, Max speed:332km/h(179.4kt), Service Ceiling:7,100m, Range:6.0h(in 278km/h)
Manufacture:Nippon Hikoki Kabushiki Kaisha(日本飛行機株式会社,Japan Aircraft Co,Ltd.)
Source:My No.2 Bible