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Leonardo da vinci flying machine helicopter
The lightest materials at the time would have been canvas as the covering for the blades and maybe pine wood for the machines main body, this would have resulted in a machine weighing close to, if not exceeding, a tonne.
Each of the posts carried thun sconto a double set of wings.
Leonardo designed a multitude of mechanical devices, including parachutes, and studied the flight of birds as well as their structure.
Link to the outstanding, Milan, Italy.Leonardo often based his designs on things he had observed in nature he designed his glider based on a Bats wing he designed his Tanks exterior walls based on a tortoise shell. While turning, the blades of the helicopter would screw into the air and this would pull the machine upward.Leonardo provided his helicopter with a landing gear in the form of a pair of ladders about twenty-four feet long.Alas, the poor flyer, if he suddenly developed a cramp in his leg!Alas for this band of aeronautical pioneers, man's first ascent into the sky was made by an entirely different type of aircraft, the hot-air balloon.One of the first of Leonardo's helicopter designs called for a shallow saucer-like gondola on which two upright posts were attached.With aluminium and these engines you can now begin to produce a machine with a high enough power to weight ratio to allow it to go airborne.
He came to the conclusionone that was to profoundly affect aircraft experiments in the years ahead that mechanical rather than human power must be used before a successful flying machine could be built.
F you look closely at Leonardos original drawing of the helicopter you will notice that the main support for the blades goes into something that looks like a barrel.
During flight they were supposed to be hauled into the gondola or fuselage.Undoubtedly while watching the seeds fall Leonardo asked himself the following question If the seed spins while it is falling, would it rise through the air if it was spun?As i have said earlier this would never have happened due to the low power to weight ratio of the men, not to mention to astronomical weight the machine itself would have had.Leonardo also considered the prospect of gliding flight, as evidenced by the small sketches above -.It consisted of a platform surmounted by a helical screw driven by a somewhat rudimentary system, not unlike that of rubber-powered model aircraft.
Each man would take hold of a wooden shaft and run around the central shaft on the treaded boards.
Even during the time of the steam engine the helicopter was not a feasible machine as steam engines are very heavy, have a low power to weight ratio we must not forget the weight of the coal and the water needed to produce the steam.