Nuvoli – a winning wager

Count Engineer Prospero Nuvoli (Turin 1901-1986) graduated in mechanical and electronic engineering from Torino Polytechnic in 1924.

In 1925, with the congratulations of the president of the Committee, General Alessandro Guidoni, he won a place to enter the Military Aeronautical Engineers and in 1926 was assigned to the Directorate of Aeronautical Constructions in Turin.

In 1927, under the tutorship of Modesto Panetti (see p. 56) he completed the class in aircraft construction, and in 1930 he was appointed as Supervisory Officer at FIAT Aeritalia in Corso Francia.

21 NEW Nuvoli mg245 Favaro

It was perhaps then that he began to think of his own airplane and made a wager with Senator Giovanni Agnelli for a dinner that in just nine months he could build a monoplane using an engine 50% less powerful than the FIAT AS.1, but with much better performance. And so it was. In 1931 the aero n-3 began to take shape at FIAT in collaboration with the three technicians that Senator Agnelli sportingly put at his disposal, and on October 30, 1931 the aircraft undertook its maiden flight in the hands of Francesco Brach Papa.
With a weight of 285 kg and a payload of 215 kg it could fly at 165 km/hour, climbing to 1,000 m in 5’40” powered by a 40 HP Salmson ad9 engine, baptized by the press as the “aerial motorcycle”.
Senator Agnelli honored the bet and on November 14, 1931 offered a lavish dinner at the restaurant Del Cambio in Turin.
The plane underwent developments and improvements with the n-3s model in which a FIAT a.50 engine was installed.
In 1932 Nuvoli opened his own company called laa (Laboratorio Artigiano Aeronautico) at no. 25 via Crissolo, where with the collaboration of five workers, he built the n-5 version using the British Pobjoy “r” 75 HP engine. This was tested on March 6, 1933 by Sebastian Bedendo, reaching a speed of 204 km/h.

22 NEW Nuvoli5R img246 Favaro

In 9 months the n-5 set five world records for “Category 3” aircraft, i.e. two-seaters with with a curb weight of up to 280 kg.

The following world records were homologated:

  •  April 24, 1933 – Straight line non-stop distance record: 886 km, from Cinisello (Milan) to San Vito dei Normanni (Brindisi) in 4 hours 56 minutes, pilot Bedendo;
  •  June 17, 1933 – world speed record over 100 km circuit: 196.936 km/h; at Ciampino, pilot Bedendo;
  •  June 17, 1933 – world speed record of 189.573 km/h for 500 km circuit; at Ciampino, pilot Bedendo;
  •  October 2, 1933 – world altitude record for the category at 6,475 meters at Guidonia-Montecelio, pilot Zappetta;
  •  December 2, 1933 – new world altitude record for the category of 6,951 meters at Guidonia-Montecelio, pilot Zappetta.


Engineer Nuvoli then went on to develop several other models including one with completely redesigned fuselage with a large baggage area, called n-5t (Tourism) with a 90 HP Pobjoy engine, destined for the private tourism market at the price of 38,000 lire.
Only 2 examples of this were produced, sold to Ferdinando Avogadro Collobiano (registered as: i-colb) and Cesare Maffei (I-MAFF).
In 1945 he was appointed as Director of the FIAT plant in Riva del Garda by prof. Vittorio Valletta, who at that time was the managing director of FIAT.

23 NEW Nuvoli img244 Favaro

2021 © Aero Club Torino - All rights reserved - CF: 01395280017 - Credits

Privacy Policy Cookie Policy