Tracked dual-link transport carriers by OJSC Machine-Building Company "Vityaz"

Background

The OJSC Machine-Building Company "Vityaz" finalized the 1st building phase of its assembly plant in 1988. The proposed idea was to establish several facilities for the development and assembly of DT two-section tracked carriers part of the "Vityaz" vehicle family. 

In 1982, the plant launched the DT-10P into serial production. Four years later in 1986, the plant introduced the DT-30P. 

Due to the configuration of the chassis and caterpillar system, the vehicle had exceptional cross-country capabilities, allowing it to traverse different terrains such as swamps, deep snow, mud and many other poor condition areas. With these capabilities, a vehicle of this type can transport different types of cargo ranging from; military equipment, supplies, portable control facilities and many other things.

DT-10P, DT-30P dual-link amphibious carriers

The DT-10P, DT-10PM, DT-30P and DT-30PM dual-link tracked amphibious carriers are intended for transporting heavy cargo ranging from 10 tons to 30 tons. 

The carriers are serviceable and preserve all performance characteristics at: 

• Ambient temperatures from -50°C to +40°C
• Relative humidity of up to 98% at 35°C
• Wind velocity of up to 20m/s 
• Dust content in the air up to 2g/cm^2
• Atmospheric precipitation 

Articulating coupling mechanism

The DT platform can be used most effectively as part of emergency rescue teams during search and emergency operations in extreme conditions caused by natural disasters such as avalanches, landslides, mass demolition of buildings and mass evacuation of people. With a maximum carrying capacity of 30 tons, the vehicle can be equipped and filled with a diverse range of equipment and supplies, allowing it to broaden its capabilities and adapt to all kinds of scenarios. 

The DT-10P, DT-10PM, DT-30P and DT-30PM carriers consist of 2 active sections interconnected through an articulating coupling mechanism. The translated motion of the carriers is passed through the torque which is transmitted from the engine to the drive sprockets of the specific track assembly. 

The turning of these carriers is enabled using an action called jackknifing which utilizes an articulating coupling mechanism that is powered and brought to motion via the usage of hydraulic rams installed on the coupling mechanism. 

Each carrier has 2 main access doors for the cabin crew. A five-seat pressurized and heated, the cab is provided with a filtering and ventilation system. Additionally, the cab can be fitted with an R-123M radio station. 

The hulls are pressurized monocoques based on a welded design. 

The suspension is based on an independent torsion-bar system. Roadhweels are made out of rubber but are filled with a sponge type filler. 








The DT-10P and DT-30P roadwheel arrangement is as follows: 

• Front section (4x4) - Rear section (5x5) for a carrying capacity of 10 tons 
• Section arrange of (6x6) for a carrying capacity of 30 tons 

Each track assembly is powered by a drive sprocket placed in the front of the chassis. Tracks have no joints and consist of two rubber-fabric belts connected using steel crossbars. 

The brakes are based on an air-driven floating belt type. The front section has an auxiliary mechanical brake control drive for manoeuvring during disconnection and connection of both sections. 

To power all the onboard systems and allow the vehicle to transport 30 tons of cargo, it was fitted with a V-46-5S 574hp, multi-fuel, 4-stroke, high-speed, liquid-cooled engine with a hydraulic generator drive and supercharger. 

The transmission consists of a hydro-mechanical drive with intersection and inter-hub differentials, 4 onboard and 2 сonical gearboxes. The variation of the drive sprocket traction force and carrier speed is achieved through an automatic shifting and gear ratio torque converter. 

DT-10PM and DT-30PM

These variants are based on the DT-10P and DT-30P but underwent modernization allowing them to perform better. 

New variants improved on: 

The old V-46-5S engine has been replaced with an "Avtodizel" YaMZ-8471 engine with a turbocharger and fan cooling system. 

The transmission was also changed to use a shaft-type reinforced 4-speed hydromechanical gearbox with a matching сonical gearbox and a multi-level torque converter.  

• Engine life has been improved (threefold/fourfold)
• Environmental safety (overall external noise reduced by 30dB)
• Improved fuel economy (10%-15% decrease in fuel consumption and a tenfold reduction in engine oil consumption)
• Average maximum speed increased by 25%
• Improved ergonomics 
• Available protection and concealment equipment

Roller arrangement also underwent considerable changes: 

• (5x5)x2 - for payloads up to 10 tons 
• (6x6)x2 - for payloads up to 30 tons

The hull was also improved. The frame, main hull bed were reinforced and standardized across all variants but remained universal and were only changed in length depending on the variant. The main crew cabin was reinforced and equipped with necessary life support systems. 

Taken from: Bolotohod, Military Vehicles The XXI Century Encyclopedia Tom 16

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Discord 

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