The DAC 120 DE is a diesel-electric

haul truck Haul trucks are off-road, heavy-duty dump trucks specifically engineered for use in high-production mining and exceptionally demanding construction environments. Most are dual axle; at least two examples of tri-axles were made in the 1970s. Hau ...

manufactured between 1988 and 1990 by Steagul Roșu (Red Flag) Brașov Romania and by Mecanica Mârşa Works. Designed in the 1980s by ICPAT institute

Brașov Brașov (, , ; , also ''Brasau''; ; ; Transylvanian Saxon dialect, Transylvanian Saxon: ''Kruhnen'') is a city in Transylvania, Romania and the county seat (i.e. administrative centre) of Brașov County. According to the 2021 Romanian census, ...

(later renamed S.C. Tractor Proiect S.A.), developed from the

Lectra Haul Unit Rig was a manufacturer of haul trucks, sold under the brand name Lectra Haul. History Unit Rig was founded in 1935 by Hugh S. Chancey and two partners, Jerry R. Underwood and William C. Guier, who formed a partnership to build a rotary dril ...

truck, it became one of the World's largest

s at its time. The DAC 120 DE had an empty

weight In science and engineering, the weight of an object is a quantity associated with the gravitational force exerted on the object by other objects in its environment, although there is some variation and debate as to the exact definition. Some sta ...

of 90

tonne The tonne ( or ; symbol: t) is a unit of mass equal to 1,000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton in the United States to distinguish it from the non-metric units of the s ...

s, and a maximum load capacity of 120 tonnes. It was 10 metres long and 5.4 metres tall over the canopy, with a wheelbase of 3.2 metres. The model was driven by an 8-ton, 65 litre

diesel engine The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compr ...

, capable of producing 1,040

horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are t ...

Supercamionul lui Ceausescu
(768 kW). The engine powered two Electroputere

Craiova Craiova (, also , ) is the largest city in southwestern Romania, List of Romanian cities, the seventh largest city in the country and the capital of Dolj County, situated near the east bank of the river Jiu River, Jiu in central Oltenia. It i ...

electric traction motors built into the rear axle. The top

speed In kinematics, the speed (commonly referred to as ''v'') of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a non-negative scalar quantity. Intro ...

of the truck was 70 km/h empty and 55 km/h when full. The truck had two 1,600 litres

fuel tank A fuel tank (also called a petrol tank or gas tank) is a safe container for Flammability, flammable fluids, often gasoline or diesel fuel. Though any storage tank for fuel may be so called, the term is typically applied to part of an engine sys ...

s capable of moving the DAC 120 DE (when full) on a 24 hours schedule an entire week. The total number of trucks built was 15, of which eight went to the Roșia Poieni copper mine, three at the

Mahmudia Mahmudia is a commune in Tulcea County, Northern Dobruja, Romania. It is composed of a single village, Mahmudia. It included the villages of Beștepe, Băltenii de Jos and Băltenii de Sus until 2004, when these were split off to form Beștepe Co ...

lime

quarry A quarry is a type of open-pit mining, open-pit mine in which dimension stone, rock (geology), rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some juri ...

, two at the Danube-Black Sea Canal site and five at the Mc Caimy Monster Pilbara

iron ore Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the f ...

mine in

Western Australia Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...

. The cost of a DAC 120 DE truck was around

US$ The United States dollar (Currency symbol, symbol: Dollar sign, $; ISO 4217, currency code: USD) is the official currency of the United States and International use of the U.S. dollar, several other countries. The Coinage Act of 1792 introdu ...

300,000 (

615,000 in 2018 dollars), much cheaper than other comparable models.

References

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External links

Mecanica Marsa (Facut In Romania)

Romanian cars - Mecanica Marsa
Haul trucks Vehicles introduced in 1988

See also

References

External links