On a certain page where you can look at various 3d models there is a list of new Japan army branch:
II Ki-10
III Ki-27
IV Ki-43
V Ki-43-2
VI Ki-61
VII Ki-84
VIII Ki-94-II
IX Ki-162
X Ki-162-3
Top 2 tiers look like a hardcore recycling, since it seems that that Ki162 is just a license produces He 162, which looking at a time frame should be like tier VIII in German tree.
No images linked, since half of these planes planes look really similar with radial engine.
Edited by jakub_czyli_ja, 28 June 2016 - 01:02 PM.