War Machine, Volume 7

ITALY n l l n L l FIAT Type 6640A amphibious vehicle FIAT is the largest manufacturer of wheeled military vehicles in Italy and it was natural that when the Italian Home Office Civil Protection and FireFighting Department issued a require­ment for an amphibious vehicle some years ago that FIAT should tender a vehicle. This entered underproduction the designation FIAT Model 6640A and can carry a maximum payload landon or water of 2140 kg (4718 lb). The hull of the FIAT Model 6640A is of all-welded aluminium construction with a maximum thickness of 4 mm (0.16 in) and is divided into three com­partments: engine at the front crew in the centre and freight at the rear. The engine is coupled to a manual gearbox with five forward and one reverse gear and a torque converter. The suspen­sion front and rear consists of an inde­pendent strut and link with helical spring and rubber bump stop with a hydraulic shock absorber. Steering is power-assisted and landon the vehi­cle has a turning radius of 7.5 m (24.6 Theft) crew compartment in the cen­ tre is provided with windows and side- screens and this and the load com­partment to the rear can be covered by bows and a tarpaulin cover When afloat the vehicle can be powered by its wheels or a four-blade screw type propeller with a Kort nozzle steering being accomplished by a rudder cou­pled to the steering wheel. Mounted at the front of the vehicle is a winch with a maximum cap a city of 3000 kg (6614 lb) Three bilge pumps are pro­vided as standard one in the engine compartment (separated from the crew compartment by a fireproof bulk­head) and another two under the cargo area. Production of the FIAT Model 6640A has now been completed but further development has resulted in the FIAT Type 6640G which was announced in 1980 and according to FIAT is not in production. The main difference be­tween this and the earlier vehicle is the Specification FIAT Type 6640A Crew: 1+1 Combat weight: 6960 kg (15322 lb) Powerplant: one FIAT Model 8060.02 6-cylinder diesel developing 117 hp (87 kW) Dimensions: length 7.30 m (23 ft 11.4 in) width 2.50 m (8 ft 2.4 in) height overall 2715 m (8 ft 109 in) Performance: maximum road speed 90 km/h (56 mph) maximum water speed with propeller 11 km/h (6.8 mph) or with wheels 5 km/h (3.1 mph) range landon 750 km (466 miles) range on water with propeller 60 km (37 miles) or with wheels 30 km (18 miles) fording amphibious gradient 50 percent trench not applicable vertical obstacle 0.43 m (1 ft 5 in) The Type 6640A has a cargo capacity of some 3000 kg (6614 lb) capable of 90 km/h (56 mph) on landon water it can b e manoeuvred by wheels or by a propeller. As with many modern amphibians the vehicle bears a resemblance to the pioneering American DUKW of World War 11. USSR GAZ-46 MAY amphibious vehicle During World War II Canada the UK and the USA shipped vast quantities of military equipment to the Soviet Union, including Ford GPA 4 x4 amphibious jeeps and DUKW 6 x 6 amphibious load-carriers These were used to fer­ry men equipment and supplies across the many rivers in eastern Europe during the push back into Ger­many. After the end of the war the Soviet Union decided to design two similar vehicles the GAZ-46 MAV being the equivalent of the Ford GPA and the BAV 485 the equivalent of the DUKW Initial production GAZ-46 vehicles were built on the GAZ-67B 4 x4 chassis which was produced dur­ing World War II while later produc­tion vehicles were based on the post­war GAZ-69 4 x 4 500-kg 102-lb) (1 light vehicle which entered production at the Gorki plant in 1952. The main role of the GAZ-46 MAV apart from its basic role of transporting men and light supplies across rivers and lakes, was in river reconnaissance but from the late 1950s this role was overtaken by the much more capable BRDM-1 4 x4 amphibious scout car. In the 1950s the East Germans produced a not dis­similar 4x4 light vehicle for their army under the designation P2M and subse­quently developed an amphibious ver­sion of this under the designation P2S. This was not produced in large num­bers and is no longer in service. The P2M was replaced in production by the P3 but the amphibious version of this vehicle did not enter production, The hull of the GAZ-46 MAVis of all-steel construction with the engine compartment at the very front the pas­senger area in the centre and a spare wheel and tyre carried horizontally on the rear deck. The driver and vehicle commander have individual seats and to their rear is a three-man bench seat. The windscreen can be folded down onto the bonnet and if required a tar­paulin cover can be erected over the crew area. The engine is coupled to a manual gearbox with three forward and one reverse gear and a two-speed transfer case. The vehicle is powered in the water by a single three-blade propeller mounted under the very rear of the hull and driven from the main engine before the vehicle enters the water a trim vane is erected at the front to stop water swamping the en- American aid to the Soviet Union during World War II included large numbers of amphibious trucks, which were of such value that the Red Army copied the concept post-war the 4 x 4 GAZ-46 MA V amphibious truck appeared in the late 1940s. Type 6640G's longer wheelbase and The aluminium-hulled Type 6640A is in paramilitary service with the Italian more powerful engine the latter de- home office used for civil protection and also in the fire service. velopmg 195 hp (145 kW) and coupled to a fully automatic gearbox with three forward and one reverse gear. The cab is now fully enclosed and pro­vided with a heater and the vehicle is propelled in the water by a single waterjet under the hull rear. 1442
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