For the motorheads....

[MiloMorai]

.... and any other interested parties.

 

Manuals for the Ha140 engine, https://translate.google.com/translate?sl=ja&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.aero.or.jp%2Fisan%2Farchive%2Fha40_and_ha60%2Fha40_and_ha60.htm&edit-text=

[JtD]

Awesome, most detailed original Japanese material I've ever seen on any of the WW2 engines. Thanks for posting.

 

I so hope to see the Ki-61 in the BoX series at some point.