Nurek Dam: World's Tallest Dam

The Nurek Dam is world’s tallest dam with the height of 300 meters (980 ft). The Nurek Dam is situated at Tajikistan on the Vakhsh River. The Nurek Dam satisfies 75% need of Tajikistan with 3 GigaWatts of electricity Generation. This Dam took 20 years to be complete.

Height: 300 meters

Length: 700 meters

Beginning of Construction: 1961

Completion of Construction: 1980

Reservoir Capacity: 10.5 Km3

Surface Area: 98 Km2

Electricity Generation: 3 GigaWatt

This dam has total of 9 turbines with capacity of 335 MegaWatt electricity generation.

Here are some images of this gigantic dam.

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Caterpillar 797

The Caterpillar 797 is a series of mining truck. It was developed and manufactured by Caterpillar Inc. It has three trucks in this series. They are 797, 797B and 797F.

797 

Power : 3,211 hp
Engine Arrangement : V-12 x 2
Top Speed : 40 mph
Payload Capacity : 360 short tons.
Height : 7.21 m
Length : 14.50 m
Width : 9.14 m

797B 

Power : 3,370 hp
Engine Arrangement : V-12 x 2
Top Speed : 42 mph
Payload Capacity : 380 short tons
Height : 7.59 m
Length : 14.45 m
Width : 9.75 m

797F

Power : 3,793 hp

Engine Arrangement : V-20

Top Speed : 42 mph

Payload Capacity : 400 short tons.

Height : 7.44 m

Length : 15.09 m

Width : 9.53 m 

Eight onboard computers can monitor oil pressure, transmission torque, engine performance and tire temperature. Their Michelin tires were especially designed for the 797, and cost about $30,000 each.

When a new 797 is delivered, it arrives in pieces aboard 12 semis, including an 850 gallon (or optional 1800 gallon) fuel tank.

The truck needss fuel in huge amounts. It uses average of 65 gallons/hr. And has a fuel economy rating of 0.3 mpg. It works for 24/7 and only stops for maintenance.

Here are some photos of Caterpillar 797.

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Liebherr T282 : Biggest Truck

The Liebherr T 282B is a large earth-hauling dump truck designed by Liebherr, a well known company in mining field, a German manufacturer of heavy equipment, household appliances, microelectronics, car parts, tool machines and aerospace components. 

It can carry about 360 tonnes (400 tons) at 64 km/h. It is a two axle truck.

It has a 3650-horsepower (2723-kilowatt) diesel engine which generates power for two electric motors in the rear axles. So it's more like a huge electric railroad locomotive than a conventional truck. Older giant trucks used a DC electrical drive system but this one uses AC, which is more efficient. 

There are probably 50 to 75 trucks sold each year worldwide. These big trucks are used in coal mines in Wyoming and Australia, copper mines in Chile, in iron extraction in South Africa and in gold mines in Nevada. 

Body Length: 50 ft 3 inches ( 15.32 m ) 

Body Height: 24 ft  (7.32 m)

Wheelbase: 21 ft 8 inches ( 6.60 m )

Empty Weight: 224 ton (including a 11.5 ton engine!) 

Max Capacity: 400 ton 

Max operating capacity: 653 ton 

Horse Power: 3,650 

Max. Speed: 40mph 

Fuel Capacity: 1,250 gallons 

Price : $ 4 - 5 million

Here are some images of Liebherr T282.

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