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Abstract: We are now celebrating one hundred years from the test of the world first jet aircraft. This aircraft was designed, built and tested in France by the Romanian inventor and engineer Henri Coanda, at the age of only 24 years. The moment we consider that attests the first run of this jet aircraft, seems to be the test of the aircraft from the 16th of December 1910, from Issy les Moulineaux, near Paris, France. It wasn't really a controlled certified flight, because Henri Coanda didn't intend to fly in that day, but we believe that the plane left the ground for a moment, before it hit the wall around Paris, and caught fire.

Keywords: Henri Coanda, "Coanda 100" Jet Aircraft, first jet aircraft.

1. THE INVENTOR

Henri Coanda was born in Bucharest in 1886 on 7th of June.

At the 24 years old, at the moment of the testing of the first jet aircraft, Henri Coanda was qualified as aero-engineer, licensed of Paris and Liège Faculties, as it was mentioned inside the paper presented that next to his jet aircraft.

At only three years after the test of the first jet aircraft, Henri Coanda was designated the MEN of the MOMENT IN THE WORLD of FLIGHT - 1913 as a technical director at British and Colonial Aeroplane Co.

Henri Coanda was Rodin's student and he was friend with Constantin Brancusi. One of Coanda's sculpture, made near after the dead of his first child Monique (possible 1911), is "Christ en Croix", from Migne Auxaunce Church, near Poitier, France.

It was the first ever jet aircraft ever built and presented at The Second Aeronautical Exhibition from Paris, in October 1910.

The first jet aircraft in the world was designed, built and tested by the briliant inventor and engineer Henri Coanda, when he was only 24 years old.

Type of the aircraft:

- biplane with two known places (maybe even three places or luggage place);

- jet without propellers, using "turbine" (in according with the name that Coanda gave it in 1910), means centrifugal compressor after nowadays name.

Dimensions and performances:

Span: 10,3m,

Chord: 1,75m,

Length of the aircraft: 12,5m,

Lift surface: 32sqm,

Wing charge: 33kg/sqm

Weight, without pilot: 420kg,

Thrust turbine: 220kg at 50HP

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