MAZ-7916 - overview, specifications, features and reviews

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

The first sample of the MAZ-7916 tractor appeared in the early seventies of the last century. It was created on the basis of the six-axle chassis of the 547th model. The distinctive features of the technique include a heavy-duty power unit located in the front. On either side of the motor were mounted two cabins made of a special alloy. The unit was equipped with a dozen single wheels with wide-profile tires. At the same time, ten elements were leading, and the first three axes belonged to the controlled category. A little later, the car received all-wheel drive, the next upgrade took place in 1980, after which the equipment inherited its main index - MAZ-7916. The updated complex retained the basic basis of the 547th modification. The exterior was distinguished by increased overall dimensions and a different design of cabins, of which there are two in the new version.

Design

The unit in question was designed in the second half of the 70s. The development was led by V. Chvyalev, the emphasis was on the creation of an improved rocket chassis (12x12), the basis of which would not require a radical reworking of its predecessor.

As a result, MAZ-7916 received some new units, a relatively moderate frame overhang (3.96 m). Toinnovation can be attributed to the first mounted left cab for two seats with a pair of doors. The right analogue, like the main assembly, is made of fiberglass, but it can only accommodate one person. This design allowed all crew members to be in their places at the same time during the combat mission.

Initially, this machine was intended for testing and testing new versions of military tractors. Later, the Pioneer complex was transported on the unit. In addition, a seven-axle chassis (7917) was developed based on this technique.

Start

The first copy of the MAZ-7916 was built in the fall of 1979. In total, five experimental versions were built during this period. All of them were equipped with a power unit for 710 “horses”, a hydraulic transformer of the latest modification, a mechanical type transmission with four modes, drive axles with a load limit of 14.7 tons each. In addition, the car was equipped with a tire pressure monitoring system.

Parameters

Main characteristics of MAZ-7916:

• Gearbox - mechanics with hydraulics for 4 modes.
• Length - 16, 32 m.
• Minimum turning radius - 27 m.
• The highway speed limit is 45 km/h.
• Curb weight - 32 t.

In total, 26 machines of this modification were assembled. The chassis successfully passed all stages of testing, was used for the installation of the Shahin-2, Hatf-Babur systems (in Pakistan), as well as the upgraded Pioneer-3 complex.

Operation

The MAZ-7916 special wheeled chassis housed the medium-range SRK (up to 7.5 thousand km). A similar design has been developed since 1983, the base was re-equipped at the Barrikady plant. The technique had two basic versions:

1. With the ability to operate 17-meter missiles 15P-655 (monoblock striking part with a thermonuclear warhead).
2. A version of the 15Zh-57 gun with three separable "strikers" and a personal targeting function.

The MAZ-7916 with the Pioneer-3 complex entered the first field tests at the end of spring 1985. The tests showed the real combat capability of the system, as a result of which it was recognized as suitable for mounting the tested weapons. Unlike its predecessors, the new complex was equipped with different control equipment and was distinguished by increased accuracy in hitting targets. The weight of the complete equipment is 83 tons, the maximum speed is 40 km/h.

Interesting facts

Projects were planned for the creation of the 4th version of Pioneer (1987-1990), but these plans were destroyed after the signing of the agreement on the liquidation of the INF Treaty. Development on the creation of a new system was completely stopped; before the summer of 1991, several Pioneer-3 complexes and earlier versions were eliminated. The dismantling process itself did not differ in technological implementations. Just at a distance of 800 millimeters from the rear of the frame, a piece of the platform was cut off, intended for the installation of support and lifting mechanisms. True, in the future the design was transformed into a modernized version.with the launch of missiles directly from the inside of the launch conveyors.

As a result, the history of the development of the Soviet military "Pioneers" based on the MAZ-7916 ended so ugly and shamefully, the description and price of which differ in several points, depending on the sources provided.

Reviews from experts who managed to work with these experimental machines suggest that the technique could become the flagship of its kind. As is often the case, political moments and bureaucratic squabbles prevented everything. It is worth noting that in their responses, some professionals mention that the six-axle chassis MAZ-7916 still managed to be saved. In 1994 it was transformed into the 79161 model with a capacity of 50 tons, which serves to install military and civilian special equipment.

Modifications

Soviet developments of the latest seven-axle chassis based on Belarusian tractors of the 7912 and 7917 types were created to transport the Topol intercontinental systems, which remain in service with the Russian army at the present time.

These tractors differ in an unusual wheel arrangement of the 14 x 12 version. In the design of such machines, work was also carried out to create similar systems with a variation in the type of cabs and the number of drive axles. The MAZ-7916 operational manual provides for the use of a machine with one controlled (non-driving) wheel drive.

Features

So original and prettya controversial design decision was made in view of the overall presence of wheelsets, which required a minimal increase in own weight while simplifying the overall configuration.

The asymmetrical and idiosyncratic design scheme has led to the fact that the medium reinforced axle has become the main node aimed at overcoming low irregularities. At the same time, the entire mass of equipment, the indicator of which often exceeds 100 tons, could briefly affect the block. The most unified chassis of models 7917 and 7912 are provided on the basis of MAZ units 547B and 7916. These modifications received two cabins different in structure and material, equipped with reinforced and elongated frames, improved technical units.

What is the result?

Unlike the "progenitor", series 7912 and 7916 had a non-standard length for that time - 12.7 m. The increase was due to the introduction of a distance of 1.8 meters between the fourth and fifth bridges. As a result, the wheelbase received a complex formula such as 2, 3/2, 3/2, 8/1, 8/1, 75/1, 75 m. For all pairs of wheel elements, the track corresponded to 2.7 meters with a mounting frame height of 1, 53 m.

The main parameters in the form of a maximum speed of 40 km / h and ground clearance of 47.5 centimeters remained unchanged. The turning radius reached 2700 millimeters, fuel consumption was approximately 200 liters per 100 kilometers. Acceleration of equipment to maximum speed did not exceed 65 seconds. The machines are adapted for operation in extreme climatic conditions.conditions and on the roads of mountainous areas, up to two thousand meters above sea level. The car is easily able to overcome a ford with a depth of 1100 mm, longitudinal rises of 10 degrees, slopes with a five percent slope. Maintaining a static roll - 40 grams. The estimated mileage was at least 18 thousand kilometers, in terms of the power unit - 500 hours, the warranty period of operation and storage is ten years.