European airmail exhibition "Lilienthal '91" - Germany / German Democratic Republic 1990 - 35 Pfennig

Historical model aircrafts On the occasion of the European airmail exhibition "Lilienthal '91" the Ministry for post office and telecommunications of the GDR gives out four multicolored special postage stamps, one of them with surcharge, with the pictures of historical model airplanes. Special postage from 20. February to 19. April 1990 Historical flight models 35 + 5 Pfennig value: Melchior farmer 1733 Against 1765 was developed in Germany by the relegious fanatics Melchior farmer from Thuringia a flying object, whose handwritten draft only in the spring 1920 in a Greizer Archive was found. It was a flying machine with rigid wings and smaller vertical flapping wings. His designer had abandoned the model of the bird world in the structure of the wings and kept to the dragon structure. The rectangular wing consisted of fir wood strips, which were covered with silk and often braced with brass wire. Bauer's designed glider aircraft was one of the most noteworthy projects of the 18th century, in which he consciously departed from the swinging flight and provided for the buoyancy rigid wings. This construction was preceded at that time by the fact that the missile should rise into the air by means of a large, rigidly fixed tensioning wing with V-position. Such wings became the basis of modern aircraft. For 150 years, the flight project of Melchior Bauer, unnoticed, rested in the Upper Castle of Greiz and was found in the 1920s when it was being cleared.