| KZKT-7428 | |
|---|---|
 KZKT-7428 Rusich | |
| Overview | |
| Manufacturer | |
| Production | 1990-2010 |
| Powertrain | |
| Engine |
|
| Range | 1500 km |
| Dimensions | |
| Length | 10,060 mm (396.1 in) |
| Width | 2,880 mm (113.4 in) [1] |
| Height | 3,060 mm (120.5 in) |
| Curb weight | 23,000 kg (50,706 lb) |
The KZKT-7428 Rusich tank transporter artillery tractor was developed as a successor to the MAZ-537 by KZKT. It can haul semi-trailers loads up to 70 t, both on and off-road. It entered service with the Soviet Army in 1990. [2] [1]
As early as the 1970s, there were efforts to replace the first widely used and by then outdated Soviet tank transporter MAZ-537 with a new design. The main task for the developers at the Kurgan Wheel Tractor Plant (KZKT) was to increase the engine power. In the mid-1970s, prototypes such as the KZKT-545 (with a W38 diesel engine and double cab) and the KZKT-7426 (with a D12A-650 diesel engine) were produced, but neither went into series production. The main reason was the shortage of powerful tank engines required for these models. [3]
In 1978, political directives were issued to KZKT to develop tractors capable of towing loads of 150, 300, and 600 tons. The result was the KZKT-7427, equipped with a D-12AN-650 diesel engine (38.88 liters displacement). Again, the availability of such engines was poor, and their service life was too short — they would wear out after just one year of normal use. Therefore, it was decided to replace the tank engine with a different V12 diesel engine, the YaMZ-8401, from the Yaroslavl Motor Plant. Although it also produced 650 hp (478 kW), it had a smaller displacement of just under 26 liters. Testing of the vehicle began in 1985. [3]
Based on the experience with the KZKT-7426 and 7427 models, the KZKT-7428 was developed in the late 1980s. KZKT used the same YaMZ-8401 diesel engine model also used in dump trucks from the Belarusian manufacturer BelAZ. The trucks passed all tests and were recommended for series production, which began in 1990. [3]
Compared to the MAZ-537, the cab, transmission, and engine were modernized. The engine was positioned directly behind the newly designed cab, which accommodated the driver and five additional crew members. [4] The vehicle typically featured all-wheel drive with single tires on each axle. KZKT produced not only a four-axle (8×8) version, but also variants with three (6×6) and five axles (10×8). [3] Production ended by 2011 when the manufacturer was dissolved due to insolvency. [5]
The following list [3] [4] is not exhaustive:
The manufacturer offered several versions of the KZKT-7428 series. The table below summarizes the key specifications. Source: [3] [6]
| KZKT-7428-011 | KZKT-7428-013 | KZKT-74286 | KZKT-74287 | KZKT-74282 | |
|---|---|---|---|---|---|
| Drive layout | 8×8 | ||||
| Crew capacity | 5+1 | ||||
| Length | 10,060 mm | 10,347 mm | |||
| Width | 2,880 mm | 3,300 mm | |||
| Height | 3,063 mm | 3,300 mm | |||
| Engine type | YaMZ-8401.10-14 | Cummins KTA19-C650 | YaMZ-240NM1B | YaMZ-8401.10-14 | |
| Displacement | 25.86 l | N/A | 22.30 l | 25.86 l | |
| Power output | 478 kW (650 hp) | 368 kW (500 hp) | 478 kW (650 hp) | ||
| Curb weight | 23.7 t | 23.7 t | 22.8 t | 25.0 t | --- |
| Max trailer weight | 100 t | 100 t | 70 t | 100 t | --- |
| Gross vehicle weight | 123.7 t | 123.7 t | 122.8 t | 125 t | 41.6 t |
| Fuel tank capacity | 900 l | 900 l + 840 l | 900 l | ||
| Max speed | 65 km/h | 55 km/h | 45 km/h | 65 km/h (on road) 20 km/h (towing aircraft) | |
