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MAZ-7410


Oplot-T


Overview

MAZ-74101

Right side view of MAZ-7410 tractor truck. This clearly shows the leaf spring suspension for the rear axles and the 5th wheel coupling device.
Source: Unknown author - © Copyright lies with original owner

Origin
Soviet Union
Type
Heavy equipment transporter
Entered service
Mid 1970's
Status
In service
Development
1973 - 1974 (development)
1975 (state tests)
Developer
Soviet Union - MAZ
Production
December 1975 - 1989 (MAZ-74101)
Late 1980's - 1994 (MAZ-74106)
Producer
Soviet Union - MAZ
Number produced
Series production, but in limited numbers
Designations
Oplot-T
Notable users
Soviet Union

Description

Introduction

The MAZ-7410 is a late Cold War era heavy duty tractor truck of Soviet origin. Derived from the family of MAZ 8x8 heavy duty off road trucks these are optimized to serve as heavy equipment transporters. Due the to economic decline of the Soviet Union in the 1980's these were produced in series, but not in the numbers as planned.

Design

The MAZ-7410 is an 8x8 heavy duty vehicle with off road capability. It is derived from the MAZ-7911 Oplot, which in turn is a modernized MAZ-543. The MAZ-7410 shares its shorter chassis with the MAZ-7311 ballast truck. The V12 engine is located between the front two steerable wheel positions. Two two-man cabins straddle the radiator unit. At the rear a 5th wheel coupling device for trailers is fitted. Depending on the role a heavy duty winch or a generator unit can be fitted at the center of the vehicle.

Cargo capacity

The MAZ-7410 is a tractor truck meant for use in conjunction with several types of low loader trailers. The coupling device can handle a load of 23 t, allowing for a trailer weight of up to 70 t. This allows for tanks of 52 t to be transported. The MAZ-74106 is a specialized variant with diesel generator, supports hydraulic active drive trailers and therefore has a reduced 17.5 t capacity for trailers up to 42 t. On the other end of the spectrum is the unique MAZ-74106 with its 140 t gross vehicle weight capability.

Users

The MAZ-7410 was adopted by Soviet forces as a tank transporter to supplement the MAZ-537G, but was never acquired in the same numbers. Specialist variants of this tractor truck were acquired as well, most notable the MAZ-74106 which is used with the 64N6 radar of late variants of the S-300P surface to air missile system.

Variants

MAZ-74101

Baseline tractor truck for use with low loader trailers. Introduced in 1976. The rear axles of the tractor truck feature leaf springs for improved load capacity. This has a 23 t load capacity on its coupling device and often fitted with a heavy winch. This allows it to winch disable vehicles on the low loader trailer. The four-man double cab setup was chosen so a three-man tank crew could be seated as passengers.

MAZ-74103

Tractor truck with increased 27 t load capability on its coupling device. A small batch of 10 vehicles were produced in the 1980's for airfield refueling vehicles for strategic aircraft. These are used with the three-axle 60.000 L ChMZAP-8685 or a 90.000 L ATZ-90-8685 twin three-axle trailer road train set-up. Due to their extreme weight maximum speed was below 40 km/h on smooth tarmac.

MAZ-74106

Tractor truck developed specifically for trailers which require a power supply and have active hydraulic drive. For that purpose a diesel generator is fitted behind the cabin. These are often used with the 64N6 (NATO: Big Bird) series of trailer mounted radar systems. These trailers feature hydraulically powered axles since they may need to traverse difficult terrain. To protect the sensitive equipment on the trailer from shock, these tractor trucks feature torsion bar suspension with central tire pressure regulation, instead of leaf spring and fixed pressure ties. This reduces the maximum load on the coupling device to 17.5 t.

Details

Facts MAZ-74101
General
Origin
Soviet Union
Type
Heavy equipment transporter
Crew
1 + 3 (driver, 3 passengers)
Dimensions
Weight
23.4 t tractor truck
93.3 t gross combination weight
Length
10.38 m
21.4 m with trailer
Width
3.1 m
Height
2.9 m to cabin roof
Chassis
Chassis type
Wheeled chassis, 8x8
Steering
Front two axles
Suspension
Torsion bar on front two axles
Leaf spring on rear two axles
Tread
2.38 m
Wheelbase
2.20 m + 2.65 m + 1.70 m
Automotive
Engine model
D12A-525
Engine type
V12 diesel
Power output
525 hp at 2.100 rpm
Torque
2.150 Nm at 1.400 rpm
Transmission
4 forward, 1 reverse
Fuel
770 L
Mobility
Speed
65 km/h
Range
620 km on road
Power to weight ratio
22.5 hp/t without trailer
5.6 hp/t at 93.3 t GCW
Obstacle crossing
Ground clearance
0.4 m
Wall
0.7 m
Trench
3 m
Gradient
57 %
Slope
44 %
Fording
1.3 m
Protection
Armor type
None, softskin vehicle
Equipment
Winch
Yes, heavy duty winch located behind cab
Cargo capacity
5th wheel
23 t load capacity
Trailer load
70 t
Trailer types
ChMZAP-5247G
ChMZAP-9990
MAZ-796
Towed load
25 t

Media