The words ,Agriculture, Jet and Biplane are rarely ,if ever, seen in the same sentence. Yet here we have that very thing! the Polish built PZL M-15 Belphegor first flew in 1976 and made its only western appearance at the Paris Air Show in 1977. It was designed to replace the antique Antonov AN-2 in the Crop Dusting role covering the huge areas of farmland in Eastern Europe and Russia. Its chemical tanks were the large hppers between the wings and it could carry a crew of 3. It was not only a lot bigger than the AN-2 but a hell of a lot noisier! hence its unnofficial name, (Belphegor was a nois