PZL M-15 Belphegor jet-powered Soviet biplane agricultural aviation. So ugly it's beautiful.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...r_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...cropduster.jpg
More: https://en.wikipedia.org/wiki/PZL_M-15_Belphegor
Previously:
https://www.homemadetools.net/forum/...019#post137834
https://www.homemadetools.net/forum/...567#post143141
https://www.homemadetools.net/forum/...400#post146654