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The Fiat G.55 ''Centauro'' (
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...
: "
Centaur A centaur ( ; grc, κένταυρος, kéntauros; ), or occasionally hippocentaur, is a creature from Greek mythology with the upper body of a human and the lower body and legs of a horse. Centaurs are thought of in many Greek myths as bein ...
") was a single-engine single-seat
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
fighter aircraft Fighter aircraft are fixed-wing military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air superiority of the battlespace. Domination of the airspace above a battlefield ...
used by the ''
Regia Aeronautica The Italian Royal Air Force (''Regia Aeronautica Italiana'') was the name of the air force of the Kingdom of Italy. It was established as a service independent of the Royal Italian Army from 1923 until 1946. In 1946, the monarchy was aboli ...
'' and the ''
Aeronautica Nazionale Repubblicana The National Republican Air Force ( it, Aeronautica Nazionale Repubblicana, ANR) was the air force of the Italian Social Republic, a World War II German puppet state in Italy. Description This air force was tasked with defending the industri ...
'' in 1943–1945. It was designed and built in
Turin Turin ( , Piedmontese language, Piedmontese: ; it, Torino ) is a city and an important business and cultural centre in Northern Italy. It is the capital city of Piedmont and of the Metropolitan City of Turin, and was the first Italian capital ...
by
Fiat Fiat Automobiles S.p.A. (, , ; originally FIAT, it, Fabbrica Italiana Automobili di Torino, lit=Italian Automobiles Factory of Turin) is an Italian automobile manufacturer, formerly part of Fiat Chrysler Automobiles, and since 2021 a subsidiar ...
. The Fiat G.55 was arguably the best type produced in Italy during World War II,Ethell 1995, p. 65. (a subjective claim also frequently made for the Macchi C.205 ''Veltro'' as well as for the Reggiane Re.2005 ''Sagittario'') but it did not enter production until 1943,Jackson 2003, pp. 76–77 when, after comparative tests against the Messerschmitt Bf 109G and the
Focke-Wulf 190 The Focke-Wulf Fw 190, nicknamed ''Würger'' ("Shrike") is a German single-seat, single-engine fighter aircraft designed by Kurt Tank at Focke-Wulf in the late 1930s and widely used during World War II. Along with its well-known counterpart, th ...
, the
Luftwaffe The ''Luftwaffe'' () was the aerial-warfare branch of the German '' Wehrmacht'' before and during World War II. Germany's military air arms during World War I, the '' Luftstreitkräfte'' of the Imperial Army and the '' Marine-Fliegerabt ...
itself regarded the Fiat G.55 as "the best Axis fighter".Arena 1994, p. 23. During its short operational service, mostly under the '' Repubblica Sociale Italiana'' insignia, after the 8 September 1943 armistice, this powerful, robust and fast aircraft proved itself to be an excellent interceptor at high altitude. In 1944, over Northern Italy, the ''Centauro'' clashed with British
Supermarine Spitfire The Supermarine Spitfire is a British single-seat fighter aircraft used by the Royal Air Force and other Allied countries before, during, and after World War II. Many variants of the Spitfire were built, from the Mk 1 to the Rolls-Royce Gri ...
,
P-51 Mustang The North American Aviation P-51 Mustang is an American long-range, single-seat fighter and fighter-bomber used during World War II and the Korean War, among other conflicts. The Mustang was designed in April 1940 by a team headed by James ...
,
P-47 Thunderbolt The Republic P-47 Thunderbolt is a World War II-era fighter aircraft produced by the American company Republic Aviation from 1941 through 1945. It was a successful high-altitude fighter and it also served as the foremost American fighter-bomb ...
and
P-38 Lightning The Lockheed P-38 Lightning is an American single-seat, twin piston-engined fighter aircraft that was used during World War II. Developed for the United States Army Air Corps by the Lockheed Corporation, the P-38 incorporated a distinctive ...
, proving to be no easy adversary.Angelucci and Matricardi 1978, p. 234. Italian fighter pilots liked their ''Centauro'' but by the time the war ended, fewer than 300 had been built. By comparison, the Germans produced 35,000 Bf 109s.U.S. Strategic Bombing Survey, Aircraft Division Industry Report, Exhibit I – German Airplane Programs vs Actual Production.


Design and development

By 1939, all the main Italian aircraft factories had begun designing a new series of
monoplane A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes. A monoplane has inherently the highest efficiency and lowest drag of any wing con ...
fighter aircraft, using inline engines as opposed to the
radial engine The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is ...
s that powered the first generation Italian monoplane fighters used in the early years of World War II (fighters such as the
Fiat G.50 The Fiat G.50 ''Freccia'' ("Arrow") was a World War II Italian fighter aircraft developed and manufactured by aviation company Fiat. Upon entering service, the type became Italy’s first single-seat, all-metal monoplane that had an enclosed co ...
and the
Macchi C.200 The Macchi C.200 Saetta (Italian: "Lightning"), or MC.200, was a fighter aircraft developed and manufactured by Aeronautica Macchi in Italy. Various versions were flown by the ''Regia Aeronautica'' (Italian Air Force) who used the type through ...
). This process saw the first generation radial-engined fighters re-equipped with the Italian-built copy of the
Daimler-Benz DB 601 The Daimler-Benz DB 601 was a German aircraft engine built during World War II. It was a liquid-cooled inverted V12, and powered the Messerschmitt Bf 109, Messerschmitt Bf 110, and many others. Approximately 19,000 601's were produced befo ...
engine, the so-called ''Serie'' 1/2, whose most prominent representative was the
Macchi C.202 The Macchi C.202 ''Folgore'' (Italian "thunderbolt") was an Italian fighter aircraft developed and manufactured by Macchi Aeronautica. It was operated mainly by the ''Regia Aeronautica'' (''RA''; Royal (Italian) Air Force) in and around the Se ...
''Folgore'' (which was an aerodynamically revised Macchi C.200- also known as Macchi C.201 - with an inline V-12 instead of a radial engine). Aircraft in this series were given alphanumeric designations ending in the number "2". However, the process didn't stop, and already in 1941, designers shifted their attention on the new, larger and more powerful ''Fiat RA.1050'', a license-built copy of the
Daimler-Benz DB 605 The Daimler-Benz DB 605 is a German aircraft engine built during World War II. Developed from the DB 601, the DB 605 was used from 1942 to 1945 in the Messerschmitt Bf 109 fighter, and the Bf 110 and Me 210C heavy fighters. The DB 610, a pa ...
. Aircraft powered by this new engine became the "Serie 5", and all had alphanumeric designations ending in the number "5" ( Macchi C.205,
Reggiane Re.2005 The Reggiane Re.2005 ' ( en, Archer, Sagittarius) was an Italian monoplane fighter and fighter-bomber produced for the ''Regia Aeronautica'' during the later years of World War II. Along with the Macchi C.202/ C.205 and Fiat G.55, the Reggiane ...
, Fiat G.55). Fiat designer
Giuseppe Gabrielli Giuseppe Gabrielli (26 February 1903 – 29 November 1987) was an Italian aeronautics engineer. He is famous as the designer of numerous Italian military aircraft, including the Fiat G.50 Freccia and G.55 World War II fighters. He was born in C ...
, while experimenting a new version of his
Fiat G.50 The Fiat G.50 ''Freccia'' ("Arrow") was a World War II Italian fighter aircraft developed and manufactured by aviation company Fiat. Upon entering service, the type became Italy’s first single-seat, all-metal monoplane that had an enclosed co ...
fighter, equipped with the DB 601, started a new design that was to be powered by the DB 605. The first G.55
prototype A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and software programming. A prototype is generally used to ...
flew on 30 April 1942,Green 1961, p. 167. piloted by commander Valentino Cus, immediately showing its good performance and flight characteristics. It was armed with one 20 mm
MG 151/20 cannon The MG 151 (MG 151/15) was a German 15 mm aircraft-mounted autocannon produced by Waffenfabrik Mauser during World War II. Its 20mm variant, the 20 mm MG 151/20 cannon, was widely used on German Luftwaffe fighters, night fighters, fig ...
with 200 rounds of ammunition, installed in the forward fuselage and firing between the cylinder banks, exiting through the
propeller A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon ...
hub. In "''Sottoserie'' O" airframes, there were also four 12.7 mm (.5 in)
Breda-SAFAT Breda-SAFAT (''Società Italiana Ernesto Breda per Costruzioni Meccaniche / Breda Meccanica Bresciana'' - ''Società Anonima Fabbrica Armi Torino'') was an Italian weapons manufacturer of the 1930s and 1940s that designed and produced a range of m ...
machine gun A machine gun is a fully automatic, rifled autoloading firearm designed for sustained direct fire with rifle cartridges. Other automatic firearms such as automatic shotguns and automatic rifles (including assault rifles and battle rifles ...
s; two in the upper engine cowling, and two in the lower cowling, firing through the propeller arc, with 300 rpg. This layout soon proved to be troublesome, both for rearming and for the servicing of the lower cowling mounted machine guns: for this reason, the two lower machine guns were removed, and replaced with a 20 mm MG 151/20 in each wing, in the later production series, the ''Serie'' 1 (for a total of three cannon and two 12.7mm machine guns, although this varied; some had machine guns in the wings instead of cannon). The prototype flew to Guidonia, where it was put into trials against the other fighters of the so-called ''Serie'' 5: Macchi C.205V ''Veltro'' and the formidable
Reggiane Re.2005 The Reggiane Re.2005 ' ( en, Archer, Sagittarius) was an Italian monoplane fighter and fighter-bomber produced for the ''Regia Aeronautica'' during the later years of World War II. Along with the Macchi C.202/ C.205 and Fiat G.55, the Reggiane ...
''Sagittario'', all of them built around the powerful, license-built
Daimler-Benz DB 605 The Daimler-Benz DB 605 is a German aircraft engine built during World War II. Developed from the DB 601, the DB 605 was used from 1942 to 1945 in the Messerschmitt Bf 109 fighter, and the Bf 110 and Me 210C heavy fighters. The DB 610, a pa ...
engine. The trials showed that the ''Centauro'' was the 2nd best performer overall, and it won the tender set by the ''Regia Aeronautica''. The C.205V was good at low and medium altitudes, fast and with good diving characteristics but its performance dropped considerably over 8,000 m (26,250 ft), particularly in handling. The Re.2005 was the fastest at high altitudes and best in dogfights, but suffered from a vibration which turned out to be a balance problem. This was corrected, but was still the most technically advanced, intricate, and therefore time-consuming of the three to produce, which made it unattractive at that stage of the war. The G.55 was chosen for mass production, along with the C.205. The G.55 prototype reached 620 km/h (390 mph), fully loaded, and without using WEP (
war emergency power War emergency power (WEP) is a throttle setting that was present on some American World War II military aircraft engines. For use in emergency situations, it produced more than 100% of the engine's normal rated power for a limited amount of tim ...
), at 7,000 m (22,970 ft). This was a little less than expected, but it had a strong airframe and was the best aircraft regarding handling and stability at every altitude. The only negative assessment noted by G.55 pilots was the pronounced left-hand yawing at takeoff due to the powerful engine torque. This was partially remedied by a slight offset positioning of the
vertical stabilizer A vertical stabilizer or tail fin is the static part of the vertical tail of an aircraft. The term is commonly applied to the assembly of both this fixed surface and one or more movable rudders hinged to it. Their role is to provide control, sta ...
to counteract engine torque. By early 1943, increased Allied bombing raids over Italy had showed that there was no suitable high-altitude fighter to deal with them effectively. The Macchi C.202's performance decreased above 8,000 m (26,250 ft), the typical altitude of the
bomber A bomber is a military combat aircraft designed to attack ground and naval targets by dropping air-to-ground weaponry (such as bombs), launching torpedoes, or deploying air-launched cruise missiles. The first use of bombs dropped from an air ...
s and its light armament of two 12.7 mm (.5 in) and two 7.7mm (.31 in) machine guns was hardly adequate to bring down
heavy bomber Heavy bombers are bomber aircraft capable of delivering the largest payload of air-to-ground weaponry (usually bombs) and longest range ( takeoff to landing) of their era. Archetypal heavy bombers have therefore usually been among the larg ...
s. Of the ''Serie'' 5 fighters, the ''Centauro'' showed the best high-altitude performance, due to its large wing surface area. Also its powerful armament, along with the generous ammunition supply (the G.55 had 250 rounds of 20 mm ammunition in the centerline cannon as opposed to 120 rounds in the Re.2005) standardized in the production ''Serie'' I, was sufficient to bring down US heavy bombers. The ''Regia Aeronautica'' commissioned the production of 1,800 G.55s, later raising that number to 2,400.Green and Swanborough 1974, p. 238. A pre-production series of 34 examples was ordered: these aircraft were mostly based on the prototype, with minor changes to improve its flying characteristics. They had a different weapon layout, as stated above, with the two lower cowling machine guns moved into the wings. Only 19 of the 34 commissioned aircraft were built, and six of them were converted to the ''Serie'' I standard at the factory. The production version, named ''Serie'' I, had the standard armament of three 20 mm MG 151/20s and two 12.7 mm (.5 in) Breda-SAFAT machine guns, plus two underwing
hardpoint A hardpoint is an attachment location on a structural frame designed to transfer force and carry an external or internal structural load, load. The term is usually used to refer to the mounting points (more formally known as a weapon station or ...
s, allowing it to carry either two bombs (up to 160 kg/350 lb), or two
drop tank In aviation, a drop tank (external tank, wing tank or belly tank) is used to describe auxiliary fuel tanks externally carried by aircraft. A drop tank is expendable and often capable of being jettisoned. External tanks are commonplace on modern ...
s (100 L/26 US Gal). At the date of the
Armistice An armistice is a formal agreement of warring parties to stop fighting. It is not necessarily the end of a war, as it may constitute only a cessation of hostilities while an attempt is made to negotiate a lasting peace. It is derived from the ...
, 8 September 1943, 35 G.55s of all ''Series'' had been delivered, including three prototypes. Of these, only one was flown to South Italy to join the Italian Co-Belligerent Air Force (a second G.55, ''MM.91150'', was obtained by the Allies in summer 1944, when test pilot, Serafino Agostini, defected with an escaped British POW, an RAF officer, sitting on his knees. The aircraft was then taken on charge by the RAF and transferred to the
Central Fighter Establishment The Central Fighter Establishment was a Royal Air Force formation that dealt with the development of fighter aircraft tactics which was formed on 4 September 1944 at RAF Wittering. It also tested new fighter aircraft and equipment, and with the ...
of
Tangmere Tangmere is a village, civil parish, and electoral ward in the Chichester District of West Sussex, England. Located three miles (5 km) north east of Chichester, it is twinned with Hermanville-sur-Mer in Lower Normandy, France. The parish h ...
,
Great Britain Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It ...
, on 17 March 1945, with the identification number VF204 applied, was put in the depot at Ford; its final fate is unrecorded.Sgarlato 2009, p. 44.Green and Swanborough 1974, p. 239.) From that date on, the ''Centauro'' served with the ''
Aeronautica Nazionale Repubblicana The National Republican Air Force ( it, Aeronautica Nazionale Repubblicana, ANR) was the air force of the Italian Social Republic, a World War II German puppet state in Italy. Description This air force was tasked with defending the industri ...
'' (ANR), the air force of the new fascist state created in North Italy by
Mussolini Benito Amilcare Andrea Mussolini (; 29 July 188328 April 1945) was an Italian politician and journalist who founded and led the National Fascist Party. He was Prime Minister of Italy from the March on Rome in 1922 until Fall of the Fascist re ...
, with the assistance of the Germans. It still not exactly known how many "Centauros" were eventually requisitioned by the ''Luftwaffe'' or those acquired by ANR. About 18 aircraft were expropriated by the ANR while 12–20 (possibly as many as 42, according to some official reports) were requisitioned by the Germans. The Fiat factory, in
Turin Turin ( , Piedmontese language, Piedmontese: ; it, Torino ) is a city and an important business and cultural centre in Northern Italy. It is the capital city of Piedmont and of the Metropolitan City of Turin, and was the first Italian capital ...
under German control, continued production for about six months. On 25 April 1944, Fiat factories were heavily bombed: 15 G.55s were destroyed, as well as some
trimotor A trimotor is an aircraft powered by three engines and represents a compromise between complexity and safety and was often a result of the limited power of the engines available to the designer. Many trimotors were designed and built in the 1920s ...
Fiat G.12 The Fiat G.12 was an Italian transport aircraft of World War II. Design and development The G.12 was an all-metal low-wing cantilever personnel transport aircraft. It had three radial engines, one mounted on the nose and the other two in wing-m ...
transports, BR.20 bombers, and CR.42LW biplane fighters ordered by the Luftwaffe. 164 "Centauros" had been completed, 97 of them being produced after the Armistice and delivered to the ANR. Following the advice of Rüstungs und Kriegsproduktion Stab (RuK), the German Control Commission, production was dispersed in small cities of
Monferrato Montferrat (, ; it, Monferrato ; pms, Monfrà , locally ; la, Mons Ferratus) is part of the region of Piedmont in northern Italy. It comprises roughly (and its extent has varied over time) the modern provinces of Alessandria and Asti. Mon ...
and production of parts were assigned to CANSA of
Novara Novara (, Novarese: ) is the capital city of the province of Novara in the Piedmont region in northwest Italy, to the west of Milan. With 101,916 inhabitants (on 1 January 2021), it is the second most populous city in Piedmont after Turin. It i ...
and AVIA in
Vercelli Vercelli (; pms, Vërsèj ), is a city and ''comune'' of 46,552 inhabitants (January 1, 2017) in the Province of Vercelli, Piedmont, northern Italy. One of the oldest urban sites in northern Italy, it was founded, according to most historians, ...
. The parts were then assembled in
Turin Turin ( , Piedmontese language, Piedmontese: ; it, Torino ) is a city and an important business and cultural centre in Northern Italy. It is the capital city of Piedmont and of the Metropolitan City of Turin, and was the first Italian capital ...
where the aircraft were to be flown by test pilots Valentino Cus, Rolandi, Agostini and Catella.Sgarlato 2009, p. 44-46. Production slowed markedly, and was stopped by the German authorities in September 1944.Green and Swanborough 1974, p. 261. A total of 148 G.55s were delivered to the ANR and, when the factory was captured, 37 more examples were ready, while 73 were still on the production line, in various degrees of completion.


Operational history

The first Centauro to see operational use was the third prototype. On 21 March 1943, the aircraft was assigned to 20° ''Gruppo'' ( squadron), 51° ''Stormo'' (
wing A wing is a type of fin that produces lift while moving through air or some other fluid. Accordingly, wings have streamlined cross-sections that are subject to aerodynamic forces and act as airfoils. A wing's aerodynamic efficiency is e ...
) CT, based at Roma-Ciampino, for operational evaluation. In May, the G.55 followed the unit to Capoterra, near
Cagliari Cagliari (, also , , ; sc, Casteddu ; lat, Caralis) is an Italian municipality and the capital of the island of Sardinia, an autonomous region of Italy. Cagliari's Sardinian name ''Casteddu'' means ''castle''. It has about 155,000 inhabitant ...
having its baptism of fire on 5 June 1943, against Allied aircraft attacking
Sardinia Sardinia ( ; it, Sardegna, label=Italian, Corsican and Tabarchino ; sc, Sardigna , sdc, Sardhigna; french: Sardaigne; sdn, Saldigna; ca, Sardenya, label= Algherese and Catalan) is the second-largest island in the Mediterranean Sea, aft ...
. The two first pre-production series flew, respectively, on 10 April and in May 1943. In early June they were assigned to ''353a Squadriglia ''(
flight Flight or flying is the process by which an object moves through a space without contacting any planetary surface, either within an atmosphere (i.e. air flight or aviation) or through the vacuum of outer space (i.e. spaceflight). This can be a ...
) ''CT'' based in
Foligno Foligno (; Southern Umbrian: ''Fuligno'') is an ancient town of Italy in the province of Perugia in east central Umbria, on the Topino river where it leaves the Apennines and enters the wide plain of the Clitunno river system. It is located sou ...
,
Umbria it, Umbro (man) it, Umbra (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = , demographics1_footnotes = , demographics1_title1 = , demographics1_info1 = , ...
, were, until August, were transferred nine more aircraft.Sgarlato 2009, pp. 42–43. Pilots were delighted when they began to receive the new fighter in summer 1943.Gunston 1988, p. 253. In June, the first Serie I were assigned to ''Gruppo Complementare'' of 51° ''Stormo'' in Foligno, near
Perugia Perugia (, , ; lat, Perusia) is the capital city of Umbria in central Italy, crossed by the River Tiber, and of the province of Perugia. The city is located about north of Rome and southeast of Florence. It covers a high hilltop and part ...
, but in July the 11 G.55 of ''Gruppo Complementare'' were transferred to 353a ''Squadriglia'', that already had in charge the "pre-series" machines, to operate from Roma-Ciampino Sud airfield. The 353a ''Squadriglia'', commanded by ''Capitano'' Egeo Pittoni, flew many missions against the American bomber formations, but the flights were stopped when
Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus ( legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...
was declared "Città aperta" (
open city In war, an open city is a settlement which has announced it has abandoned all defensive efforts, generally in the event of the imminent capture of the city to avoid destruction. Once a city has declared itself open the opposing military will b ...
). On 27 August, the ''Squadriglie'' 351a and 352a left Sardinia and arrived in Foligno to be re-equipped with G.55. But at the date of the 8 September the G.55 had not been delivered yet. During the first week of September, 12 ''Centauros'' had been assigned to 372a ''Squadriglia'' of 153° ''Gruppo'' in Torino-Mirafiori.Sgarlato 2009, pp. 42–44. On 8 September 1943, the date of Armistice, the ''Regia Aeronautica'' had received 35 G.55s. Only one of them flew to southern Italy, accepting the invitation of ''Maresciallo d'Italia''
Pietro Badoglio Pietro Badoglio, 1st Duke of Addis Abeba, 1st Marquess of Sabotino (, ; 28 September 1871 – 1 November 1956), was an Italian general during both World Wars and the first viceroy of Italian East Africa. With the fall of the Fascist regime ...
to surrender to Allied forces.


ANR service

There still is no exact data about the G.55's captured by the ''Luftwaffe'' or acquired by ''
Aeronautica Nazionale Repubblicana The National Republican Air Force ( it, Aeronautica Nazionale Repubblicana, ANR) was the air force of the Italian Social Republic, a World War II German puppet state in Italy. Description This air force was tasked with defending the industri ...
''. About 18 G.55s were acquired by ANR while 12–20, or even 42, according to some reports, were requisitioned by the ''Luftwaffe''. The ''Centauro'' entered in service with the ANR; a decision was made to produce 500 G.55s, of which 300 were G.55/I and 200 G.55/II ''Serie'' II, armed with five 20 mm MG 151/20s and no machine guns (one in the centerline, two in the upper cowling, two in the wings). Only 148 were delivered to the ANR units that, as the number of available G.55s dwindled, were progressively re-equipped with the Bf 109G, of various sub-versions, even though Italian pilots preferred the G.55, with cancellation of production being extremely unpopular. The ANR had two ''Gruppi Caccia terrestre'' (fighter squadrons), the first was initially equipped with the Macchi C.205, from November 1943 to May 1944, then, re-equipped with the G.55/I in June 1944 until it switched to the Bf 109G starting from November 1944. The 2nd ''Gruppo'' was the main unit equipped with the G.55, of which it had 70 examples from December 1943 – August 1944, before being progressively re-equipped with the Bf 109G. The first unit in ANR to be equipped with G.55 was the ', in November 1943, operating from
Piemonte it, Piemontese , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = , demographics1_footnotes = , demographics1_title1 = , demographics1_info1 = , demographics1_title2 ...
until 29 March 1944, when it was absorbed by the 1st ''Gruppo'' and transferred in Veneto. The 2nd ''Gruppo'' was formed at Bresso. It was initially commanded by Lt Col Antonio Vizzoto, and later by Lt Col Aldo Alessandrini.Neulen 2000, p. 81. It had three ''Squadriglie'' (the 4th, ''Gigi Tre Osei'', the 5th, ''Diavoli Rossi'', and the 6th, ''Gamba di Ferro''). The unit operated near
Milan Milan ( , , Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city ...
and
Varese Varese ( , , or ; lmo, label=Varesino, Varés ; la, Baretium; archaic german: Väris) is a city and ''comune'' in north-western Lombardy, northern Italy, north-west of Milan. The population of Varese in 2018 has reached 80,559. It is the ca ...
until April 1944, then it was transferred near
Parma Parma (; egl, Pärma, ) is a city in the northern Italian region of Emilia-Romagna known for its architecture, music, art, prosciutto (ham), cheese and surrounding countryside. With a population of 198,292 inhabitants, Parma is the second m ...
and
Pavia Pavia (, , , ; la, Ticinum; Medieval Latin: ) is a town and comune of south-western Lombardy in northern Italy, south of Milan on the lower Ticino river near its confluence with the Po. It has a population of c. 73,086. The city was the ...
, then again near the
Lake Garda Lake Garda ( it, Lago di Garda or ; lmo, label= Eastern Lombard, Lach de Garda; vec, Ƚago de Garda; la, Benacus; grc, Βήνακος) is the largest lake in Italy. It is a popular holiday location in northern Italy, about halfway between ...
(
Brescia Brescia (, locally ; lmo, link=no, label= Lombard, Brèsa ; lat, Brixia; vec, Bressa) is a city and '' comune'' in the region of Lombardy, Northern Italy. It is situated at the foot of the Alps, a few kilometers from the lakes Garda and Iseo ...
and
Verona Verona ( , ; vec, Verona or ) is a city on the Adige River in Veneto, Italy, with 258,031 inhabitants. It is one of the seven provincial capitals of the region. It is the largest city municipality in the region and the second largest in nor ...
). At the end of May, the 2° ''Gruppo'' gave its G.55s to 1° ''Gruppo'' and re-equipped with 46 ex I./JG 53 and II./JG 77 Bf 109G-6/R6Neulen 2000, p. 81. With the ANR, the G.55s gave a good account of themselves against Allied fighters like the Spitfire and Mustang.Jackson 2003, p. 77.


German interest

In December 1942, a technical commission of the ''Regia Aeronautica'' was invited by the ''Luftwaffe'' to test some German aircraft in
Rechlin Rechlin is a municipality in Mecklenburg-Western Pomerania, Germany, around 100 km (60 mi) northwest of Berlin. The town's airport has a long history and was the Luftwaffe's main testing ground for new aircraft designs in Nazi Germany. ...
. The visit was part of a joint plan for the standardization of the Axis aircraft production. In the same time, some ''Luftwaffe'' officers visited Guidonia where they were particularly interested in the performance promised by the ''Serie'' 5 fighters. On 9 December, these impressions were discussed in a ''Luftwaffe'' staff meeting and raised the interest of
Hermann Göring Hermann Wilhelm Göring (or Goering; ; 12 January 1893 – 15 October 1946) was a German politician, military leader and convicted war criminal. He was one of the most powerful figures in the Nazi Party, which ruled Germany from 1933 to 1 ...
himself. In February 1943, a German test commission was sent in Italy to evaluate the new Italian fighters. The commission was led by ''Oberst'' Petersen and was formed by ''Luftwaffe'' officers and pilots and by technical personnel, among them the ''Flugbaumeister'' Malz. The Germans also brought with them several aircraft including a Fw 190 A-5 and a Bf 109 G-4 for direct comparison tests in simulated dogfights. The tests began 20 February 1943 with the German commission very impressed by the Italian aircraft, the G.55 in particular. In general, all the ''Serie'' 5 fighters were very good at low altitudes, but the G.55 was also competitive with its German opponents in term of speed and climb rate at high altitudes, while still maintaining superior handling characteristics. The definitive evaluation by the German commission was "excellent" for the G.55, "excellent" for the Re.2005 although very complicated to produce, and merely "average" for the C.205. ''Oberst'' Petersen defined the G.55 "the best fighter in the Axis" and immediately telegraphed his impressions to Göring. After listening to the recommendations of Petersen, Milch and Galland, a meeting held by Göring on 22 February 1943 voted to produce the G.55 in Germany. German interest, apart from the good test results, derived also from the development possibilities they were able to see in the G.55 and in the Re.2005. Particularly, the G.55 was bigger and heavier and was considered a very good candidate for the new, significantly larger and more powerful DB 603 engine, which was considered too large to fit in the Bf 109's airframe. Other visits were organized in Germany during March and May 1943 in Rechlin and Berlin. The G.55 was again tested at Rechlin at the presence of Milch. Gabrielli and other FIAT personnel were invited to visit German factories and to discuss the evolution of the aircraft. The specifications of the German G55/II included the DB 603 engine, five 20 mm guns and a pressurized cockpit. The suggestion of weapons in the wings, limited to one 20 mm gun for each wing, originated the final configuration of the ''Serie'' I, while the DB 603 engine was successfully installed in what became the G.56 prototype. As a concrete expression of the German interest in the G.55, the ''Luftwaffe'' acquired three complete G.55/0 airframes (MM 91064-65-66) for evaluations and experiments providing three DB 603 engines and original machinery for the setup of other production line of the Italian copy of DB 605. Two of the ''Luftwaffe'' G.55's remained in Turin, at the ''Aeritalia'' plants, where they were used by German and Italian engineers to study the planned modifications and the possible optimizations to the production process. Later these two were converted to Serie I and delivered to the ANR. The third one was transferred to Rechlin for tests and experiments in Germany. The DB 603 engines were used to build the G.56 prototypes. The interest in the G.55 program was still high after the Armistice. In October 1943,
Kurt Tank Kurt Waldemar Tank (24 February 1898 – 5 June 1983) was a German aeronautical engineer and test pilot who led the design department at Focke-Wulf from 1931 to 1945. He was responsible for the creation of several important Luftwaffe aircraft of ...
, who previously personally tested a G.55 in Rechlin, and who had had nothing but praise for the aircraft, was in Turin to discuss G.55 production. However, events in the war and the not yet optimized production process were the reasons for which the G.55 program was eventually abandoned by the ''Luftwaffe''. Early production of G.55 required about 15,000
man-hour A man-hour (sometimes referred to as person-hour) is the amount of work performed by the average worker in one hour. It is used for estimation of the total amount of uninterrupted labor required to perform a task. For example, researching and wr ...
s; while there were estimates to reduce the effort to about 9,000 man-hours, the well-practiced German factories were able to assemble a Bf 109 in only 5,000 man-hours. The DB 603 were instead to be used in Tank's own Ta-152C.


Torpedo fighter

The ''Regia Aeronautica'' frequently used
torpedo bomber A torpedo bomber is a military aircraft designed primarily to attack ships with aerial torpedoes. Torpedo bombers came into existence just before the First World War almost as soon as aircraft were built that were capable of carrying the weight ...
s to air-launch torpedoes, such as the
trimotor A trimotor is an aircraft powered by three engines and represents a compromise between complexity and safety and was often a result of the limited power of the engines available to the designer. Many trimotors were designed and built in the 1920s ...
SIAI-Marchetti SM.79 ''Sparviero''
medium bomber A medium bomber is a military bomber Fixed-wing aircraft, aircraft designed to operate with medium-sized Aerial bomb, bombloads over medium Range (aeronautics), range distances; the name serves to distinguish this type from larger heavy bombe ...
. These had some success in the early war years, inflicting considerable losses on Allied shipping in the Mediterranean. By late 1942 the ageing ''Sparviero'' was facing continually improving Allied fighters and anti aircraft defences, leading to the Italian general staff exploring the idea of using well-powered, single-engined
heavy fighter A heavy fighter is a historic category of fighter aircraft produced in the 1930s and 1940s, designed to carry heavier weapons, and/or operate at longer ranges than light fighter aircraft. To achieve performance, most heavy fighters were twin-eng ...
s to deliver torpedoes – a concept known later as the " torpedo fighter". Such aircraft, based near the Italian coast, could potentially have an operational range of 300–400 km (190–250 mi), would be capable of carrying a 680 kg (1,500 lb) torpedo (a shorter and more compact version of a weapon carried by the SM.79) at relatively high speed, and would also be better able to evade enemy fighters and/or combat them on equal terms. While some consideration was given to adapting the G.55, Fiat began designing the G.57, a separate design powered by the 930 kW (1,250 hp) Fiat A.83 R.C.24/52 radial engine that was more capable of carrying a torpedo. Later, after the G.57 project was dropped, and given the ANR's continuing need for an aircraft that could replace the SM.79, the ANR engineers undertook the task of converting the ''Centauro'' for the torpedo attack role. A production G.55 (military serial number ''MM. 91086'') was modified to carry a 920 kg (2,030 lb), 5.46 m (17.91 ft) long torpedo. The engine coolant
radiator Radiators are heat exchangers used to transfer thermal energy from one medium to another for the purpose of cooling and heating. The majority of radiators are constructed to function in cars, buildings, and electronics. A radiator is always ...
, normally a single unit positioned on the belly of the fuselage under the cockpit area, was divided into two units mounted under the wing roots (similar to the layout used on the Bf 109), gaining a 90 cm (35 in) space where two racks were mounted to carry the torpedo. The tailwheel strut was lengthened and equipped with a strengthened shock absorber to keep the tailfins of the torpedo from striking the ground, and a drag-reducing cowling was added in front of the tailwheel to minimize drag from the lengthened strut. The G.55/S shared the same gun layout as the G.55/I, with the three MG 151/20s and the two Breda-SAFAT machine guns. The aircraft, designated G.55/S, first flew in August 1944 and was successfully tested in January 1945, piloted by
Adriano Mantelli Adriano Mantelli (13 February 1913 – 6 May 1995) was an Italian aircraft designer who designed the Alaparma Baldo. Early life In 1929 Mantelli competed in flying competitions with aircraft that were self designed and built. In 1931 he starte ...
. Despite the cumbersome external load, performance was good and the handling acceptable. The ANR ordered a pre-series of 10 examples and a production series of 100 aircraft, but the conclusion of the war put an end to the project. The G.55/S prototype survived the war and, after being converted back to the ''Serie'' I standard, it became the first G.55 to be delivered to the newly formed ''
Aeronautica Militare Italiana , colours = , colours_label = , march = (Ordinance March of the Air Force) by Alberto Di Miniello , mascot = , anniversaries = 28 March ...
'' (AMI).


Fiat G.56

The Fiat G.56 was essentially a Fiat G.55 with a larger German
Daimler-Benz DB 603 The Daimler-Benz DB 603 was a German aircraft engine used during World War II. It was a liquid-cooled 12-cylinder inverted V12 enlargement of the DB 601, which was in itself a development of the DB 600. Production of the DB 603 commenced in ...
engine. Two prototypes were built, flight tests starting in March 1944. On 30 March, Commander Valentino Cus reached speeds of 690/700 km/h (430/440 mph). Official maximum speed was 685 km/h (426 mph) and the aircraft was armed with three 20 mm MG 151/20 cannon, one firing through the propeller hub, the other two installed in the wings.Green and Swanborough 1994, p. 210. Performance was excellent, the aircraft proving superior to both the Bf 109K and Bf 109G and Fw 190A, outmaneuvering Ethell 1995, p. 65. all types in testing. Production, however, was not allowed by the German authorities.


After World War II

In 1946, Fiat restarted production of the G.55, using the large stock of partly complete airframes and components remaining in its factories. It was available in two versions, the G.55A, a single-seat fighter/advanced trainer, and the G.55B, a two-seat advanced trainer, whose prototypes flew on 5 September 1946 and 12 February 1946 respectively. The AMI acquired 19 G.55As and 10 G.55Bs, while the
Argentine Air Force "Argentine Wings" , mascot = , anniversaries = 10 August (anniversary) 1 May (Baptism of fire during the Falklands War) , equipment = 139 aircraft , equipment_label = , battles = * Operation Independence * Operation Soberanía * Falkl ...
purchased 30 G.55As, and 15 G.55Bs. In September 1951, units of the
Argentine Navy The Argentine Navy (ARA; es, Armada de la República Argentina). This forms the basis for the navy's ship prefix "ARA". is the navy of Argentina. It is one of the three branches of the Armed Forces of the Argentine Republic, together with th ...
and
Army An army (from Old French ''armee'', itself derived from the Latin verb ''armāre'', meaning "to arm", and related to the Latin noun ''arma'', meaning "arms" or "weapons"), ground force or land force is a fighting force that fights primarily on ...
attempted a
military coup A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct ...
against the government of
Juan Perón Juan Domingo Perón (, , ; 8 October 1895 – 1 July 1974) was an Argentine Army general and politician. After serving in several government positions, including Minister of Labour and Vice President of a military dictatorship, he was elected ...
. The G.55s and the sole Argentine G.59 of ''Grupo 2 de Caza'' of the Argentine Air Force attempted to defect to the rebel forces, flying to the Punta Indio Naval Air Base. The pilots were arrested on arrival and the aircraft immobilised, however, and took no further part in the revolt, which was defeated by Loyalist forces.Hagedorn 2006, pp. 131–132.


G.59

The production of these orders for G.55s for Italy and Argentina caused the available stocks of the Italian licence-built version of the DB 605 engine to run short. As there was still a demand for the aircraft, it was decided to convert the type to use the more readily available
Rolls-Royce Merlin The Rolls-Royce Merlin is a British liquid-cooled V-12 piston aero engine of 27-litres (1,650  cu in) capacity. Rolls-Royce designed the engine and first ran it in 1933 as a private venture. Initially known as the PV-12, it was late ...
engine, with the first conversion flying in early 1948.Green and Swanborough 1994, p. 211. The conversion was successful, and the AMI decided to convert its G.55s to Merlin power, these re-entering service at the
Lecce Lecce ( ); el, label= Griko, Luppìu, script=Latn; la, Lupiae; grc, Λουπίαι, translit=Loupíai), group=pron is a historic city of 95,766 inhabitants (2015) in southern Italy. It is the capital of the province of Lecce, the provi ...
flying school in 1950 as the G.59-1A and G.59-1B (single- and two-seat versions).Green and Swanborough 1974, p. 262.
Syria Syria ( ar, سُورِيَا or سُورِيَة, translit=Sūriyā), officially the Syrian Arab Republic ( ar, الجمهورية العربية السورية, al-Jumhūrīyah al-ʻArabīyah as-Sūrīyah), is a Western Asian country loc ...
placed an order for 30 similar aircraft, which by this time, were completely from new production as the stocks of G.55 components had been exhausted. Of these, 26 were single-seaters (designated G.59-2A) and the remaining 4 two-seaters (G.59-2B). A single G.59-2A was acquired by Argentina for evaluation, but no further orders followed from the South American republic. The final versions were the G.59-4A single-seater and G.59-4B two-seater, which were fitted with bubble canopies for improved visibility. 20 G.59-4As and ten G.59-4Bs were produced by Italy.


Variants

;G.55: 3 prototypes. ;G.55/0: 16 pre-production aircraft. ;G.55/1: Initial production aircraft. ;G.55/2: Bomber interceptor version. ;G.55/S: Torpedo attack aircraft variant. S for silurante meaning torpedo. ;G.55/A,B: Single-seat/twin-seat trainer versions, developed after the conflict. ;G.56: 2 prototypes with Daimler-Benz DB 603A engines. ;G.57: Version planned with A Fiat A.83 R.C.24/52 radial engine. ;G.59-1A:
Rolls-Royce Merlin The Rolls-Royce Merlin is a British liquid-cooled V-12 piston aero engine of 27-litres (1,650  cu in) capacity. Rolls-Royce designed the engine and first ran it in 1933 as a private venture. Initially known as the PV-12, it was late ...
powered single-seat advanced trainers converted from G.55s ;G.59-1B :
Rolls-Royce Merlin The Rolls-Royce Merlin is a British liquid-cooled V-12 piston aero engine of 27-litres (1,650  cu in) capacity. Rolls-Royce designed the engine and first ran it in 1933 as a private venture. Initially known as the PV-12, it was late ...
powered two-seat trainers converted from G.55s ;G.59-2A: 26, new production,
Rolls-Royce Merlin The Rolls-Royce Merlin is a British liquid-cooled V-12 piston aero engine of 27-litres (1,650  cu in) capacity. Rolls-Royce designed the engine and first ran it in 1933 as a private venture. Initially known as the PV-12, it was late ...
powered single-seaters for
Syria Syria ( ar, سُورِيَا or سُورِيَة, translit=Sūriyā), officially the Syrian Arab Republic ( ar, الجمهورية العربية السورية, al-Jumhūrīyah al-ʻArabīyah as-Sūrīyah), is a Western Asian country loc ...
;G.59-2B: 4, new production,
Rolls-Royce Merlin The Rolls-Royce Merlin is a British liquid-cooled V-12 piston aero engine of 27-litres (1,650  cu in) capacity. Rolls-Royce designed the engine and first ran it in 1933 as a private venture. Initially known as the PV-12, it was late ...
powered two-seat trainers for
Syria Syria ( ar, سُورِيَا or سُورِيَة, translit=Sūriyā), officially the Syrian Arab Republic ( ar, الجمهورية العربية السورية, al-Jumhūrīyah al-ʻArabīyah as-Sūrīyah), is a Western Asian country loc ...
;G.59-4A: 20, new production,
Rolls-Royce Merlin The Rolls-Royce Merlin is a British liquid-cooled V-12 piston aero engine of 27-litres (1,650  cu in) capacity. Rolls-Royce designed the engine and first ran it in 1933 as a private venture. Initially known as the PV-12, it was late ...
powered single-seaters for the
Aeronautica Militare Italiana , colours = , colours_label = , march = (Ordinance March of the Air Force) by Alberto Di Miniello , mascot = , anniversaries = 28 March ...
, fitted with bubble canopies. ;G.59-4B: 10, new production,
Rolls-Royce Merlin The Rolls-Royce Merlin is a British liquid-cooled V-12 piston aero engine of 27-litres (1,650  cu in) capacity. Rolls-Royce designed the engine and first ran it in 1933 as a private venture. Initially known as the PV-12, it was late ...
powered two-seaters for the Aeronautica Militare Italiana, fitted with bubble canopies.


Operators

; *
Argentine Air Force "Argentine Wings" , mascot = , anniversaries = 10 August (anniversary) 1 May (Baptism of fire during the Falklands War) , equipment = 139 aircraft , equipment_label = , battles = * Operation Independence * Operation Soberanía * Falkl ...
; *
Royal Egyptian Air Force The Egyptian Air Force (EAF) ( ar, القوات الجوية المصرية, El Qūwāt El Gawīyä El Maṣrīya), is the aviation branch of the Egyptian Armed Forces that is responsible for all airborne defence missions and operates all milit ...
; * ''
Regia Aeronautica The Italian Royal Air Force (''Regia Aeronautica Italiana'') was the name of the air force of the Kingdom of Italy. It was established as a service independent of the Royal Italian Army from 1923 until 1946. In 1946, the monarchy was aboli ...
'' ; * ''
Aeronautica Nazionale Repubblicana The National Republican Air Force ( it, Aeronautica Nazionale Repubblicana, ANR) was the air force of the Italian Social Republic, a World War II German puppet state in Italy. Description This air force was tasked with defending the industri ...
'' ; *
Italian Air Force , colours = , colours_label = , march = (Ordinance March of the Air Force) by Alberto Di Miniello , mascot = , anniversaries = 28 March ...
operated 74 Fiat G.59 retired in 1965Aerei Italiani
/ref> ; *
Syrian Air Force ) , mascot = , anniversaries = 16 October , equipment = , equipment_label = , battles = * 1948 Arab-Israeli War * Six-Day War * Yom Kippur War * ...


Specifications (G.55/I)


See also


References


Notes


Bibliography

* Angelucci, Enzo and Paolo Matricardi. ''World Aircraft: World War II, Volume I'' (Sampson Low Guides). Maidenhead, UK: Sampson Low, 1978. . * Arena, Nino. ''I Caccia Della Serie 5, Re2005, Mc205, Fiat G.G5'' (in Italian). Modena, Italy: STEM-Mucchi, 1976. . * Arena, Nino. ''Fiat G55 Centauro – Fiat G59''(in Italian). Modena, Italy: Mucchi Editore, 1994. * Beale, Nick, Ferdinando D'Amico and Gabriele Valentini. ''Air War Italy, Axis Air Forces from Liberation of Rome to the Surrender''. Shrewsbury, UK: Airlife, 1996. . * D'Amico, Ferdinando and Gabriele Valentini.''Pictorial History of the Regia Aeronautica Vol.2 – Pictorial History of the Aeronautica Nazionale Repubblicana and the Italian Co-Belligerent Air Force 1943–1945''. Carrollton, Texas: Squadron/Signal Publications, 1986. . * Di Terlizzi, Maurizio. ''Fiat G.55 Centauro'' (bilingual Italian/English). Roma, Italy: IBN Editore, 2001. . * ''Dimensione Cielo: Aerei Italiani nella 2° Guerra Mondiale, Caccia Assalto 3'' (in Italian). Rome: Edizioni Bizzarri, 1972. * Ethell, Jeffrey L. ''Aircraft of World War II''. Glasgow: HarperCollins/Jane's, 1995. . * Green, William. ''War Planes of the Second World War: Fighters, Volume Two''. London: Macdonald & Co. (Publishers) Ltd., 1961. * Green, William and Gordon Swanborough, eds. "Centaur – The Final Fling." '' Air Enthusiast International''. Volume 6, Number 5, May 1974, pp. 233–239, 261–262. * Green, William and Gordon Swanborough. ''The Complete Book of Fighters''. New York: Smithmark Publishers Inc., 1994. . * Gunston, Bill. ''The Illustrated Directory of Fighting Aircraft of World War II''. London: Salamander Books Limited, 1988. . * Hagedorn, Dan. ''Latin American Air Wars and Aircraft 1912–1969''. Crowborough, UK: Hikoki Publications, 2006. . * Jackson, Robert. ''Aircraft of World War II – Development – Weaponry – Specifications''. Enderby, Silverdale Books. 2003. . * Malizia, Nicola. ''Fiat G.59''. Roma, Italy: IBN Editore, 2004. . * Matricardi, Paolo. ''Aerei militari: Caccia e Ricognitori''. Milano: Mondadori Electa, 2006 * Mondey, David. ''The Hamlyn Concise Guide to Axis Aircraft of World War II''. London: Bounty Books, 2006. . * Nicolle, David. "Arab-Italian Fighters: Fiats and Macchis in Egyptian and Syrian Service 1948-1956". ''Air Enthusiast'', No. 55, Autumn 1994, pp. 32–36. * Sgarlato, Nico. ''I caccia della Serie 5''. Parma: Delta Editrice, 2009. * Sgarlato, Nico. ''Italian Aircraft of World War II''. Warren, Michigan: Squadron/Signal Publications, Inc., 1979. . * Thompson, Jonathan W. ''Italian Civil and Military Aircraft, 1930–1945''. Fallbrook, CA: Aero Publishers, 1963. * Vergnano, Piero and Gregory Alegi. "Fiat G.55." ''Ali D'Italia #10'' (in Italian/English). Torino, Italy: La Bancarella Aeronautica, 1998. * Winchester, Jim. "Fiat G.55 Centauro." ''Aircraft of World War II: The Aviation Factfile''. Kent, UK: Grange Books plc, 2004. .


Further reading

*


External links


Virtual G55 project

Fiat G.55 Centauro
{{Fiat aircraft 1940s Italian fighter aircraft World War II Italian fighter aircraft G.055 Single-engined tractor aircraft Low-wing aircraft Aircraft first flown in 1942