Tatra T813
| T 813 | |
|---|---|
 |
|
| Overview | |
| Manufacturer | Tatra |
| Production | 1967-1982 |
| Body and chassis | |
| Class | Heavy Truck |
| Body style | COE |
| Powertrain | |
| Engine | V12 multifuel |
| Dimensions | |
| Length | 8,800 mm (346.5 in) (T813 KOLOS) |
| Width | 2,500 mm (98.4 in) |
| Height | 2,780 mm (109.4 in) (T813 KOLOS) |
| Curb weight | 14,000 kg (30,865 lb) (T813 KOLOS) |
| Chronology | |
| Predecessor | Tatra T141 |
| Successor | Tatra T815 |
| T 930-xx E | |
|---|---|
 |
|
| Overview | |
| Manufacturer | Tatra |
| Also called | T 930 E |
| Combustion chamber | |
| Displacement | 17,640 cc |
| Cylinder bore | 120 mm (4.7 in) |
| Piston stroke | 130 mm (5.1 in) |
| Cylinder block alloy | Cast Iron |
| Cylinder head alloy | Aluminium alloy |
| Valvetrain | OHV |
| Compression ratio | 16.5:1 |
| Combustion | |
| Fuel system | Direct injection |
| Fuel type | Diesel fuel |
| Cooling system | Air-cooled |
| Output | |
| Power output | 198.6 kW (266 hp) @ 2000 rpm |
| Torque output | 990 N·m (730 ft·lbf) @ 1300 rpm |
| Dimensions | |
| Dry weight | 1,035 kg (2,282 lb) |
Tatra T813 was a truck produced in Czechoslovakia by the Tatra company. It was produced from 1959 to 1982. The basic representative of this series was the a military version of the 8 × 8 Kolos (Colossus), which was able to pull trailers up to a total weight of 100 tons. Tatra also produced a civilian version in either 6×6 or 4×4. After fifteen years of production 11,751 vehicles were built in all modifications, most of which were exported - mainly to the USSR , East Germany , Romania and India .
The first prototype already built in 1960 utilized existing Tatra T138 assemblies in 4x4 full-time all-wheel drive, which was also another first for Tatra. After the initial trials however the designers decided to develop and expand the concepts onto 8x8 all-wheel-drive all-terrain vehicle. The basis of the design thus became the modular chassis of T813. Successor is the Tatra T815 model.
The tubular backbone construction was once again selected. The main advantages of central load carrying backbone tube are in its high torsional and bending stiffness protecting the truck's body against load stresses. Another advantage is that it houses all important parts of the drive train as well as it enables a concept of modular construction where designers and customers can specify 4,6,8, wheel drive and various length wheelbase combinations. A new cab-over-engine design was implemented, as were the wide profile super single tyres and central tyre inflation/deflation system.
The naturally aspirated V12 engine T-930 was created by adding extra four cylinders to the existing T-928 75-degree V8 engine, used in Tatra T138. The crankshaft consisted of six individual journals bolted together with front and rear pins all running on the main roller bearings and located on axial friction thrust washers. The military version was once again multi-fuel capable, running on mixtures of diesel fuel, petrol and aviation kerosene fuel.
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