50 Strangest Aircraft Ever Made

PZL M-15 Belphegor

aviationtrivia.info

Here’s the official word, “The PZL M-15 was a jet-powered biplane designed and manufactured by the Polish aircraft company WSK PZL-Mielec for agricultural aviation. In reference to both its strange looks and relatively loud jet engine, the aircraft was nicknamed Belphegor, after the noisy demon.”