This site principally mentions, what already is said in this thread, additionally mentioning,blackkite said:
According to this site (it is in the Russian language) the H7Y1 was the classic 4 engined flying boat while the Hiro H-97 was the twin nacelle layout like the Do-26:blackkite said:
Sorry, no front view, but I wouldn't expect many surprises by it either . Judging the drawing,blackkite said:... I want to see front view, especially parasol wing support structure.
Nope ! As they are drawn in dotted lines and as a wing, as clean as possible probably wasblackkite said:... But you forgot wing tip float.
Different attempt at translating the same sentence: "The main wing was a high monoplane wing, and above it were Junkers Jumo Diesel engines imported from Germany, with four engines grouped in sets of two, giving a twin-engine shape."Hikoki1946 said:"主翼は高翼単葉とし翼上にドイツから輸入したユンカース・ユモ・デーゼルエンジン４基を２基一組として双発形式とした。" "Was in the form as a set of two twin-engined Junkers-4 group Yumo-Dezeru engine imported from Germany on the wing and wing high-wing monoplane."