Tatra T-813 was a truck produced in Czechoslovakia by the Tatra company. It was produced from 1959 to 1982. The basic representative of this series was 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.
History:
The first prototype which was made of Tatra T-138 parts was built in 1960. It had permanent 4 × 4 all-wheel-drive. After the initial trials however the designers decided to develop and expand the concept to an 8×8 all-wheel-drive all-terrain vehicle. The basis of the design thus became the modular chassis of the Tatra 813. In 1983, it was succeeded by the Tatra T815.
Chassis:
The chassis is a full-length backbone tube with independent swing half axles available as either 4×4, 6×6 or 8×8 model. 4×4 models had a front axle suspension system with adjustable torsion bars, in the 6×6 and 8×8 models front and rear axles had longitudinal semi-elliptic leaf springs. For the 4×4 configuration the rear axle had air suspension. Permanent all-wheel-drive, front twin steer(6×6, 8×8) drive via homo-kinetic drive shafts, lockable differentials, inter-axle differentials with locks and planetary hub reductions were standard for all models. Unlike many six-wheeled vehicles, which have a single front axle and tandem rear axles, 6×6 versions used twin steering front axles- as with the 8×8- and a single rear axle.
Technical Data:
- Front track
- 2050 mm (KOLOS)
- 1990 mm (6×6 Hauler, S1, 8×8 Chassis)
- 2030 mm (NT, NTH Prime movers)
- Rear track
- 2000 mm (8×8 KOLOS)
- 1950 mm (6×6 Hauler, 8×8 Chassis, S 1)
- 1990 mm (NT, NTH Prime movers)
- Wheelbase
- T813 KOLOS – 1650+2200+1450 mm
- 6×6 Hauler – 1650+2700 mm
- 8×8 Chassis – 1650+3200+1450 mm
- S1 8×8 – 1650+2800+1450 mm
- NT, NTH 4×4 – 3700 mm
- Ground clearance
- 380 mm (KOLOS, 6×6 Hauler)
- 330 mm (8×8 Chassis, S1 8×8)
- 300 mm (NT, NTH Prime Movers)