/jp/ - Otaku Culture

>>21778091
>Jet Keiun is also a post war plane btw.
It was a real life proposal as a modification for the Keiun, which first flew in May 1945.
>https://oldmachinepress.com/2012/12/11/yokosuka-kugisho-r2y1-keiun/

and if this site is to be believed, the only reason one prototype was finished as a piston-engine plane was was to get a basic idea of the capabilities of the air frame, before starting work on the bomber variant. I can't imagine that work continued on the aircraft after the end of the war.