[PlaneKrazy]

No Ed, I know what the Ohka is. JohnMacG6 is aware what I was referring to. It looked identical to the buzz bomb except with a cockpit, very similar infact to the Reichberg IV "buzz bomb," piloted by Hanna Reitsch.
Indeed as far as I know the Germans trained Japanese engineers, who made faithful copies.

I am more interested whether there were any plans by the Japanese to deploy this aircraft and how exactly ?

My question about the I-400 was mostly a speculative question because so much effort seemed placed in this design yet it was never used. Did the Kawanishi Baika (aka plum cherry) ever fly in Japan ?

Thanks both of you
Simon