The most original aspect of the Avioplan was the shape of its fuselage, designed for minimum aerodynamic drag and acting as a tube fan, increasing the efficiency of the propeller.

[3] The same year, Goliescu built a model of his Avioplan with a length of 1.2 metres (3.9 ft) and an engine powered by a rubber turnbuckle that was as long as the fuselage,[3] achieving a takeoff angle of 30 degrees with it.

Assisted by the Romanian Minister of Education, Spiru Haret, who also helped Aurel Vlaicu, Goliescu went to France to acquire a new engine for his aircraft.

Unlike his previous model, the machine had above the tubular fuselage, a relatively small wing in the shape of an upturned V, with the foil having a pronounced curve at the leading edge.

He flew the Avioplan for the first time in November 1909, at Juvisy airfield near Paris, and reached an altitude of about 50 metres (160 ft).

The tubed-propeller design finally reached its full potential after World War II, when aircraft designers successfully implemented it in helicopters, like the Eurocopter AS365 Dauphin and the RAH-66 Comanche, and in the X-35 experimental aircraft which gave rise to the F-35 Lightning II fighter.

Discovered by the Siguranța after he stole top-secret military documents (the country's army's mobilization plans) and made them available to the Russians, he was arrested in February 1913.