Medium tank MV-3 “Tamoyo”
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Medium tank MV-3 “Tamoyo”
In 1984-1985, the competing company Engesa produced prototypes of the modern Osorio tank (EE-T1), which forced Bernardini to modernize some units of the MV-3 Tamoyo tank. The turret with weapons and the transmission underwent fundamental changes. As a result of this work, the Tamoyo III tank appeared in 1987. Its turret was completely redesigned in order to install the British 105-mm 17AZ cannon in it and thereby eliminate one of the main drawbacks inherent in the first model - low firepower. Ammunition of the new gun consisted of 50 rounds. 18 of which were stored in the ammunition rack in the turret, and the remaining 32 in the tank hull. A new fire control system for the Tamoyo III was developed by Ferranti Falcon.
In the model shown by Bernardini in 1987, the power group consisted of the American Detroit Diesel 8U-92TA engine, which developed 535 hp. With. at 2300 rpm, and transmission SO-850-3. However, at present, the General Electric Corporation has completed work on adapting the NMRT-500 III transmission for the Tamoyo used on the American BMP M2 Bradley. Now the NMRT-500 transmission can be installed on the tank at the request of the customer. In the 1987 version, the Tamoyo III tank developed a speed of 67 km/h on the highway and had a good squat: it accelerated to 7,2 km/h in 32 seconds. With a fuel reserve of 700 liters, the tank traveled 550 km.
On the basis of the Tamoyo tank, the Bernardini company planned to create an armored recovery vehicle and a ZSU armed with a 40-mm Bofors 1/70 cannon. However, it was not possible to implement this program, just as it was not possible to bring the base tank to mass production, which remained at the prototype stage. The performance characteristics of the medium tank MV-3 "Tamoyo"
See the design of the 105 mm L7 turret and cannon. Sources:
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The creators of the tank tried to use in the design of their car only those components and assemblies that were produced in Brazil, so as not to depend on the whims of foreign manufacturers. It was for this reason that the Swedish engine 23 SAAB-Scania 031-14, produced in Brazil, was installed on the car, which at 2100 rpm developed a power of 368 kW. The SO-850-3 transmission of the General Motors corporation was used as a power transmission. The undercarriage of the tank includes (on board) 6 dual road wheels with rubber tires, a rear drive wheel, a front guide wheel and three support rollers. Track rollers have an individual torsion bar suspension; in addition, the first, second and sixth rollers are equipped with hydraulic shock absorbers. The standard equipment of the tank includes a system of protection against weapons of mass destruction, a fire safety system, a heater and a bilge pump.
