Caproni, also known as Società de Agostini e Caproni and Società Caproni e Comitti, was an Italian aircraft manufacturer.Its main base of operations was at Taliedo, near Linate Airport, on the outskirts of Milan.
Founded by Giovanni Battista "Gianni" Caproni during 1908, the company produced several successful heavy bombers during the First World War.Following the acquisition of several other aviation firms throughout the interwar period, Caproni transformed into a sizable aviation-orientated syndicate, the Società Italiana Caproni, Milano. The majority of its aircraft were bombers and transport aircraft. It played a pioneering role in the development of the Caproni Campini N.1, an experimental aircraft powered by a thermo-jet.It provided large numbers of combat aircraft for the Axis during the Second World War.The firm did not prosper in the postwar era and the Società Italiana Caproni went out of business in 1950.Many of the company's former assets were subsequently acquired by the Italian helicopter specialist Agusta.
History
The company was founded during 1908 by the Italian aviation pioneer and aeronautical engineerGiovanni Battista "Gianni" Caproni. It was initially named, from 1911, Società de Agostini e Caproni, then Società Caproni e Comitti.
Caproni was responsible for completing the first aircraft of Italian construction in 1911.
Its principal manufacturing facilities were based in Taliedo, a peripheral district of Milan, close to Linate Airport, while the firm's Caproni Vizzola division was based in Vizzola Ticino, close to Milan–Malpensa Airport.
The firm initially produced a series of small single-engine aircraft, including the Caproni Ca.1, Ca.6 and Ca.12; these became important milestones in the early development of Italian aviation.[1] As such, Caproni became one of the most important Allied aircraft manufacturers during the First World War, being responsible for the design and manufacture of large, multi-engine long-range bombers, such as the three-engined Caproni Ca.32, Ca.33, Ca.36 and Ca.40. These aircraft were adopted not only by the Italian military, but by the French as well. Caproni's bombers were a significant contribution in the development of heavy aircraft.[2][3] Following the end of the conflict, the strategic bombing theories of Giulio Douhet were reputedly shaped by the operational use of Caproni bombers, and thus have been was seen as an important landmark in the history of aviation.[3][4]
The Interwar period was a busy one for Caproni.The end of the First World War led to a rapid decrease in demand for bombers, impacting orders for much of Caproni's traditional product line and the company redirected its resources towards the growing civil aviation market.[5] It reorganised into a large syndicate, which was named the Società Italiana Caproni, Milano, as a result of having acquired several smaller Italian manufacturers.By the 1930s, the company's main subdivisions comprised Caproni Bergamasca, Caproni Vizzola, Reggiane and the engine manufacturer Isotta Fraschini. Caproni's aircraft activity largely orientated towards the production of bombers and light transport aircraft.
Perhaps the most distinctive of Caproni's aircraft was the Caproni Ca.60 Transaereo, an experimental large flying boat designed for the civil sector.At the time, the concept of a large multi-engined flying boat to serve long-distance passenger routes was considered to be radical.[6] Caproni believed that such an aircraft could allow travel to remote areas more quickly than ground or water transport, and that the investment required to develop and manufacturer such an aircraft would be less expensive than pursuing alternatives.[5] During 1919, Caproni filed to patent his work on the concept.[7] His large seaplane design, designated Caproni Ca.60, was highly unorthodox, featuring eight engines and three sets of triple wings.[7] On 12 February or 2 March 1921, it took off for the first time, proving to be both stable and maneuverable during its brief flight, in spite of a persisting tendency to climb.[9] On March 4, the sole completed aircraft was lost while attempting its second flight.[10]
During 1927, the Caproni Museum (Italian: Museo Caproni) was established in Taliedo by Giovanni Caproni and his wife, Timina Caproni.[11] It is both the oldest aviation museum in Italy,[12][13][11] as well as the country's oldest corporate museum.[12][14] The Caproni Museum has long outlived the Caproni company itself.[15]
Caproni continued to maintain its interest in innovative aircraft. The Stipa-Caproni, also known as the Caproni Stipa, was designed by Luigi Stipa and built by Caproni during the early 1930s.The aircraft featured a hollow, barrel-shaped fuselage with the engine and propeller enclosed by the fuselage, effectively forming a single ducted fan.Flight testing found that the approach induced significant aerodynamic drag, cancelling out much of the gains in engine efficiency and reducing the aircraft's top speed to 131 km/h.[16] Some authors have claimed that its design influenced the development of jet propulsion.[17][18]
During the 1930s, Caproni became involved with the Italian aeronautics engineerSecondo Campini, who was engaged in pioneering research into jet propulsion, having proposed adopting a so-called thermo-jet to power an aircraft.[19] Campini had been issued with an initial contract from the Italian government to develop and manufacture his engine.During 1934, the Regia Aeronautica (the Italian Air Force) granted its approval to proceed with the production of a pair of jet-powered prototype aircraft; Caproni was engaged to manufacture this aircraft, which was thus designated as the Caproni Campini N.1, with Campini providing technical guidance while specialising in the engine's design.[20][21]
On 27 August 1940, the maiden flight of the experimental N.1 occurred at Caproni's Taliedo facility.[22] On 30 November 1941, the second prototype was flown from Milan's Linate Airport to Rome's Guidonia Airport, in a highly publicised event that included a fly-past over Rome and a reception with Italian Prime Minister Benito Mussolini.According to the historian Nathanial Edwards, the practicality of the N.1 design had been undermined by political pressure to speed the programme along so that Italy would be more likely to be the first country in the world to perform a jet-powered flight.[23] According to economics author Harrison Mark, Soviet aircraft design bureau TsAGI obtained details on the N.1 programme and were encouraged to work on a similar design; as such, there is a basis for stating that the design of the N.1 influenced subsequent early jet aircraft.[24]
The early years of the postwar era was one of considerable hardship for Caproni and the wider Italian aviation industry alike. During 1950, the Società Italiana Caproni ceased to exist. However, one of the company's former divisions, Caproni Vizzola, lasted until 1983, when it was acquired by the Italian helicopter manufacturer Agusta.[25]
17.O.E. Lancaster, ''High Speed Aerodynamics and Jet Propulsion. Vol. XII: Jet Propulsion Engines'', Princeton 1959 claims that "The Stipa Aero plane built by Caproni in 1932 should be classified as a Jet Aircraft. The Stipa Aero plane can be considered as a predecessor of the Jet Aircraft of today."^
18.Robert Guttman. Caproni Flying Barrel: Luigi Stipa Claimed His 'Intubed Propeller' Was the Ancestor of the Jet Engine Aviation History, March 2010^
26.Gianni Caproni, Biplano Ca 90, in Gli Aeroplani Caproni - Projects Studies Realizations from 1908 to 1935, Milan, Edizioni d'arte Emilio Bestetti, 1937, pp. 229-45,^
27.AA.VV., Caproni Ca.90, in Grande Enciclopedia Aeronautica, Milan, Edizioni Aeronautica L. Mancini, 1936, p. 154,^
Caproni Ca.45 – Postwar redesignation of Ca.5 aircraft built for France
Caproni Ca.46 – Postwar redesignation of Ca.5 variant
Caproni Ca.47 – Postwar redesignation of seaplane version of Ca.5
Caproni Ca.48 – Airliner version of Ca.4
Caproni Ca.49 – Proposed seaplane airliner of 1919
Caproni Ca.50 – Air ambulance version of Ca.44
Caproni Ca.51 – Postwar redesignation of prototype of enlarged Ca.4
Caproni Ca.52 – Postwar redesignation for Ca.4 aircraft built for Royal Naval Air Service
Caproni Ca.56 – Airliner version of Ca.1
Caproni Ca.57 – Airliner version of Ca.44
Caproni Ca.58 – Postwar redesignation for re-engined Ca.4s
Caproni Ca.59 – Postwar redesignation for exported Ca.58s
Caproni-Pensuti triplane – Sports triplane of 1919
Caproni Sauro-1 – Two-seat touring aircraft
Caproni Vizzola F.5 – Fighter of 1939
Stipa-Caproni – Experimental ducted-fan powered prototype of 1932
Caproni Ca.325 – Proposed version of Ca.135 medium bomber with more powerful engines, built in mock-up form only
Caproni Ca.330 - Project
Caproni Ca.331 – Prototype tactical reconnaissance aircraft/light bomber (Ca.331 O.A./Ca.331A) of 1940 and prototype night fighter (Ca.331 C.N./Ca.331B) of 1942
Caproni Ca.332 - Project; derived from Ca.330
Caproni Ca.335 – Fighter-bomber, reconnaissance aircraft for the Belgian Air Force.
Caproni Ca.360 - Twin engine dive bomber project
Caproni Ca.365 - Twin engine bomber project
Caproni Ca.370 - twin engine combat plane project
Caproni Ca.375 - twin engine combat plane project
Caproni Ca.380 - twin-boom fighter project
Caproni Ca.381 - twin-boom fighter project
Caproni Campini N.1 – Experimental motorjet-powered aircraft of 1940
