The Isotta Fraschini V.4 of 1916 was an Italian six-cylinder, water-cooled, in-line piston aero engine of

World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...

(the "V" denoted "Volo" or "flight").Gunston 1989, p. 82. Its construction was fairly typical of aircraft engines of the period with six cast-iron cylinders mounted in pairs with common heads. This engine was also produced by

Alfa Romeo Alfa Romeo Automobiles S.p.A. () is an Italian carmaker known for its sports-oriented vehicles, strong auto racing heritage, and iconic design. Headquartered in Turin, Italy, it is a subsidiary of Stellantis Europe and one of 14 brands of mu ...

Applications

* CANT 7 *

Caproni Ca.3 The Caproni Ca.3 is an Italian heavy bomber of World War I and the postwar era. It was the most produced version of the series of aircraft that began with the 1914 Caproni Ca.1 and continued until the more powerful 1917 Caproni Ca.5 variant. ...

* Caproni Ca.30 * Caproni Ca.33 *

Caproni Ca.34 The Caproni Ca.3 is an Italian heavy bomber of World War I and the postwar era. It was the most produced version of the series of aircraft that began with the 1914 Caproni Ca.1 and continued until the more powerful 1917 Caproni Ca.5 variant. ...

* Caproni Ca.35 *

Caproni Ca.36 The Caproni Ca.3 is an Italian heavy bomber of World War I and the postwar era. It was the most produced version of the series of aircraft that began with the 1914 Caproni Ca.1 and continued until the more powerful 1917 Caproni Ca.5 variant. ...

FBA Type H The FBA Type H was a French reconnaissance flying boat produced in large numbers in France and Italy during World War I by Franco-British Aviation. Design and development A development of the FBA Type A, the Type H shared the same basic pushe ...

* Macchi L.1 *

Macchi M.5 The Macchi M.5 was an Italian single-seat fighter flying boat designed and built by Nieuport-Macchi at Varese. It was extremely manoeuvrable and agile and matched the land-based aircraft it had to fight.Orbis 1985, page 2393 Development The ...

Macchi M.6 The Macchi M.6 was an Italian flying boat fighter prototype of 1917. Design and development In 1917, Nieuport-Macchi built the M.6. for comparison with its Macchi M.5 flying boat fighter, which went into service that year and operated successf ...

Macchi M.8 The Macchi M.8 was an Italian reconnaissance/bomber flying boat designed by Alessandro Tonini and built by Macchi. It was used by the Italian Naval Aviation and was later flown by crews from the United States Navy. Design and development The M.8 ...

* SIAI S.8

Variants

;V.4: :;V.4A: :;V.4B: :;V.4Bb:

Engines on display

* A V.4b is on display in the

Gianni Caproni Museum of Aeronautics The Gianni Caproni Museum of Aeronautics (Italian: ''Museo dell'Aeronautica Gianni Caproni'') is Italy's oldest aviation museum, as well as the country's oldest corporate museum. It was established in 1927 as the Caproni Museum (''Museo Caproni'') ...

. * The Caproni Ca.36 on display in the

National Museum of the United States Air Force The National Museum of the United States Air Force (formerly the United States Air Force Museum) is the official museum of the United States Air Force located at Wright-Patterson Air Force Base, northeast of Dayton, Ohio. The NMUSAF is ...

is fitted with a V.4b engine. * A V.4b is on display in the

Polish Aviation Museum The Polish Aviation Museum () is a large museum of historic aircraft and aircraft engines in Kraków, Poland. It is located at the site of the no-longer functional Kraków-Rakowice-Czyżyny Airport. This airfield, established by Austr ...

Specifications (V.4b)

References

Notes

Bibliography

*Gunston, Bill. ''World Encyclopedia of Aero Engines''. Cambridge, England. Patrick Stephens Limited, 1989. * {{Isotta Fraschini aeroengines V.4 1910s aircraft piston engines