Tatra 815

Tatra 815 is the name of an extensive and versatile family of vehicles by Czech manufacturer Tatra. It includes trucks and tractors and chassis for special bodies.

  • 4.1 Zweiachser
  • 4.2 three-axle
  • 4.3 four-axle

History

According to a Comecon decision from 1971, the Tatra -Werke should cover all the needs of the CMEA countries to off-road vehicles weighing up to 20 tons working load in the future. To achieve the planned number, the production capacity 1972-1982 were considerably expanded by the construction of new plants. Also at the beginning of the 70s began with the development of the new type Tatra 815. The aim is to streamline the production was through the creation of a basic type instead of the previous two series. The first prototypes Tatra 815 were produced in 1976 and 1977. In 1981, the production of an extended pilot series, it included 4 to 5 cars per month. The serial production began in 1982, at that time, the production of the previously -made types and Tatra 148 Tatra 813 was discontinued. The Series 815 learned over time numerous further developments and is as Tatra 815-2 even today (January 2009) in the production program of this manufacturer contain. It also special versions such as version " Arctic " for export to Siberia or vehicles for use in the tropics were built. In 1997, the Tatra 815-2 served as the basis for the development of new vehicle family TERRNo 1

Technology

The vehicles of the Tatra 815 series are manufactured in modular principle of unified components. There are vehicles with 2, 3 or 4 axes. Also chassis with 5 or more axes, for example, for mobile cranes, were built. We can distinguish the following basic forms: Truck for road and off-road use, military and other specialty vehicles and chassis for special bodies of other manufacturers. All have in common is the Tatra typical basic concept with air-cooled engines, Central tube frame and swing axles.

Motors

Together with the Tatra 815, the new engine series T3 was introduced. It is air-cooled OHV direct injection engine with 120 mm bore and stroke of 140 mm. The engine series was initially constructed in the following versions:

With the introduction of the Tatra 815-2 were the 10 - and 12 - cylinder engines taken from the program and instead used exclusively supercharged V8 engines. They meet the standards of the class EURO II ( The engines of the emission classes EURO V to present the vehicle family are TERRNo one reserved). For certain export markets also engines from DEUTZ or CUMMINS were used. In January 2009, 815-2 following EURO II engines are offered for the Tatra:

The air-cooled versions will delight in the northern regions of Russia is very popular, because at arctic temperatures risk freezing coolant is removed.

Power transmission

The clutch is designed as a single-plate dry clutch. Initially unsynchronized manual transmission were used for most models, only types for overriding road use were synchronized gearbox. Today, the gears are generally synchronized. Generally, a five-speed gearbox is used with a splitter. Tractors for heavy trailers and special vehicles are additionally equipped with a two-stage intermediate gear, so 20 forward gears available for these vehicles. The 815 series vehicles are predominantly equipped with all-wheel drive, in part, with switchable front axle. For most road use also versions were produced, in which not all axles were driven. In the current production program is the Tatra 815-2 exclusively in 4 × 4, 6 × 6 or 8 × 8 configuration listed. Rear axle and interaxle can be lockable.

Chassis

The basis is the typical Tatra central tube frame. Its advantages are the high torsional and flexural rigidity and protection of the internal components of the drive train. The axes are executed as a pendant semi-axes. The modular design of axes and different wheelbases be realized. This construction gives the vehicles a high degree of suitability for use off-road. At the front axle torsion bars are installed, the rear axles are fitted with leaf springs or air suspension. There are versions with single tires and dual tires on the rear axles. The steering is done mechanically with hydraulic assistance. For the versions with two front axles both front axles are steered. The service brake system is a pneumatic dual circuit brake with drum brakes on all wheels and ALB on all axles. It is combined with spring -loaded parking brake, engine brake and dual-line trailer braking system. Today, the vehicles are equipped with ABS.

Construction

With the series Tatra 815 and the tiltable cab of this manufacturer was introduced. There's the cab-over in different variants, as short and medium cabins as well as a double cabins. In some embodiments, the short cabin located directly above the front axle, the rise takes place here behind the front wheel. In most designs, the cabin is a bit forward, the rise takes place before the front wheel. The vehicle bodies are carried by a subframe. Were from the factory and are supplied except chassis, among other three-way tipper, dump trucks, platform trucks, tractors and tractors with platform.

Derivations

The chassis of Tatra 815 8x8 is the basis of the Czech Selbstfahrlafette DANA. In addition, the 8 × 8 version was produced in India under license, there it is the basis of the multiple launch rocket system Pinaka dar.

Photos

Zweiachser

Tatra 815 with drill

Tatra 815 as a rally truck

Three-axle

Tatra 815 Tractor

Tatra 815 Flatbed THW

Tatra 815 concrete mixer

Four-axle

Cars similar

  • Pinzgauer ( Austria )
  • Unimog ( Germany )
  • Mercedes -Benz Zetros ( Germany )
  • Volvo C303 (Sweden)
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