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Pioneers

The beginning ...

The first concept of rotary wing aviation came from the Chinese in the fourth century A.D.

A book called "Pao Phu Tau" tells of the "Master" describing flying cars (fei chhe) with wood from the inner part of the jujube tree with ox-leather straps fastened to returning blades as to set the machine in motion (huan chien i yih chhi chi). This is the first recorded pattern of what we might understand as a helicopter.

The technology needed to create a helicopter had not been produced yet but the concept of rotary wing aviation had unquestionably been found.
John Fay



400 BC : Chinese tops A toy, consisted of feathers at the end of a stick, which was rapidly spun between the hands to generate lift and then released into free flight. These toys were probably inspired by observations of the autorotating seeds of trees such as the Sycamore.

1480 : Leonardo Da Vinci 's Helical Air Screw
"...I have discovered that a screw-shaped device such as this,
if it is wellmade from starched linen,
will rise in the air if turned quickly..."
Leonardo Da Vinci - Codice Atlantico

His theory for "compressing" the air and obtain lift was substantially similiar to that for today s helicopters.

Often been cited as the first serious attempt to produce a working helicopter, Da Vinci 's was only an experimental design and was never put into practical use. Was clearly far ahead of its time, but without adequate technology the ability to create such machines was virtually impossible.
His sketch of the aerial screw or air gyroscope device is dated to 1483 but it was first published nearly three centuries later.
A scale model (currently exposed at the Science Museum of London) recently built with the original Da Vinci plans was not successful to raise itself in flight.
Helical air Screw



A wide amount of minor inventions contributed to the advancement of the helicopter between the fifteenth and twentieth centuries ... All models at this time lacked suitable power to achieve flight and were both bulky and heavy.


The precision of parts due to the Industrial Revolution enabled the helicopter to evolve into the modern machines we see flying today. The need of accurate machinery and fixtures was evident when the earliest helicopter models lacked the efficiency and flying capability of modern helicopters.

Thanks Buyse


1754 : Mikhail Lomonosov ( Czarist Russia ) He suggest a coaxial rotor machine to elevate meteorological instruments. It was modeled after the chinese toy but powered by a wound-up spring device. The device flew freely and climbed to a good altitude.

1784, April 28 : Launoy / Bienvenu ( France ) Another version of the chinese toy, which has at each end of its fuselage a two-bladed propeller driven by a bowdrill system. Was a model consisting of a counter rotating set of turkey feathers that could take off and fly using its own power. This proves that an object which is heavier than air could fly.

1800 : Sir George Cayley ( UK ) Already famous for his work on the basic principles of flight, which dates from the 1790s, had constructed several successful vertical-flight models with rotors made of sheets of tin and driven by wound-up clock springs.
In a scientific paper, published in 1843, Cayley mention a vertical flight machine called "Aerial Carriage." However, Cayley's device remained an idea because the only power plants available at the time were steam engines, and these were much too heavy to allow for successful powered flight.



1842 : W. H. Phillips ( UK ) Build a 10 kg steam-powered model.

1845 : Cossus ( France ) A steam machine, uses a main rotor and other two smallest.

1861 : Bright Uses a globe over the rotors


1863, Sept 24 : Viscount Gustave de Ponton d'Amécourt ( France ) In a 40-page monograph entitled :
"La Conqûete de l'air par l'hélice. Exposé d'un nouveau système d'aviation"
published in Paris, he put together the Greek words helico and pteron, meaning "spiral" and "wing", to make the word hélicoptère.

1877 : E.Forlanini ( Italia ) With a small steam engine (3.5 kgs), his model reach 9 meters and remains in flight for 30 seconds.

1880 : Thomas Edison He tries with an electric engine. The machine was unpowered but he was sure that helicopters will be very important in the future

1895 : De los Olivos A tandem rotors helo with wings

1900 / 1930 : continue








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