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Italian heavy truck From Wikipedia, the free encyclopedia
The Fiat 666 was a heavy truck produced by the Italian Fiat Veicoli Industriali.
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| FIAT 666NM-RE | |
|---|---|
| |
| Type | Heavy Truck |
| Place of origin | Kingdom of Italy |
| Service history | |
| Used by | Regio Esercito Regia Aeronautica |
| Wars | World War II |
| Production history | |
| Designed | 1940 |
| Manufacturer | Fiat Veicoli Industriali |
| Specifications | |
| Mass | 6 t |
| Length | 7,095 mm (279.3 in) |
| Width | 2,350 mm (92.5 in) |
| Height | 2,850 mm (112.2 in) |
| Crew | 2 |
| Passengers | 20 |
| Engine | diesel Fiat 366, 6-cylinder direct injection, 9365 cm3 |
The 666, like the corresponding medium-sized Fiat 626, was produced from 1940 as "Unified" truck: since 1937, by law, the War Department required all manufacturers of civilian trucks to have standard features regarding weight, number of axles, speed and capacity, in order to simplify logistics in case of requisition by the armed forces. The 626 and the 666, which replaced on assembly lines, respectively, the Fiat 621 and Fiat 632, were the first trucks of the Turin with forward control, and with the engine totally contained inside the cabin. The chassis was made of longitudinal members on two axles, with front-wheel steering and twin rear-wheel drive, and a wheelbase and track width of 3.85 meters by 1.84 meters. The truck had a Fiat 366, 6-cylinder 9365 cc, diesel engine, which developed 105 hp at 2000 rpm and was characterized by its innovative layout of guides that allowed a quick and simple replacement from the front. The gearbox had 4 forward speeds and one reverse speed with reduction gearing. Externally, it differed from the Fiat 626 only in size, the shape of the windscreen and the body. The trailers, with 6260 kg capacity (twice the 626), could carry 20 equipped soldiers.
The vehicle was produced from 1940 to 1945 in civil and NM (Nafta Military) 666N diesel versions (nafta) for the armed forces. In 1943, the BM version gasoline was approved for military use, but the armistice prevented production.
The civilian version, also available with a bus chassis, had enormous success, also being produced after the war as the Fiat 666N7, for a total production of 8000.
The Fiat 666 was largely acquired by the Italian armed forces: the N-RE version for the Royal Italian Army and the N-RA for the Royal Italian Air Force were captured in different outfits, such as the Bus, Car, Tanker, Fire Engine, Transport quadrupeds, with portacarri trailers Viberti and Bartoletti. After the Armistice of Cassibile 79 NM were produced for the Germans who occupied the Fiat facilities in north Italy. Among the units supplied to the forces of the Italian Social Republic, there is evidence of at least one 666 armored, handcrafted from the arsenal of Piacenza, with a turret armed with a 12.7 mm Breda-SAFAT machine gun and supplied to the Republican National Guard.
In 1941 a military-wheel drive version of Fiat 666NM diesel was produced. The vehicle maintained maximum commonality with rear-wheel drive versions and went into production for the armed forces in 1942. After the armistice, 2 copies were produced for the Wehrmacht.
In 1942 an armoured personnel carrier version was made, called Fiat 665NM protected or shielded, used against Yugoslav partisans first, and then in northern Italy.
| Model | Years of production | Engine Type |
Engine size cm3 |
Power | Gross vehicle weight rating (in tonnes) |
|---|---|---|---|---|---|
| Fiat 665NM - truck, military diesel, 4×4 | 1942 - 1944 | Fiat 366 | 9365 | 110 at 2000 rpm | 12.4 |
| Fiat 666N - truck, autobus, diesel |
1939 - 1946 | Fiat 366 | 9365 | 100 to 2000 rpm | 12.2 |
| Fiat 666NM-RA - truck, military bus diesel |
1940 - 1945 | Fiat 366 | 9365 | 105 at 2000 rpm | 12 |
| Fiat 666NM-RE - truck, military bus, diesel |
1940 - 1945 | Fiat 366 | 9365 | 95 at 2000 rpm | 12 |
| Fiat 666N7 - truck, bus, diesel direct injection |
1946 - 1948 | Fiat 366/345 | 9365 | 113 at 2000 rpm | 13.4 |
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