Big Muskie:
Manufacturer: Bucyrus-Erie
Model: 4250-W, "Big Muskie"
Weight: 27,000,000 pounds (12,000 t; 14,000 short tons)
Bucket Capacity: 220 cubic yards (170 m3), 325 short tons (295 t)
Height: 222 feet 6 inches (67.82 m)
Boom length: 310 feet (94 m)
Machine length (boom down): 487 feet 6 inches (148.59 m)
Bucket weight (empty): 230 short tons (210 t)
Width: 151 feet 6 inches (46.18 m)—comparable to an eight-lane highway
Cable diameter: 5 inches (130 mm)
Electrical power: 13,800 volts
Mobility: Hydraulically driven walker feet
Big Muskie was powered by electricity supplied at 13,800 volts via a trailing cable, which had its own transporter/coiling units to move it.[1] The electricity powered the main drives, eighteen 1,000 horsepower (750 kW) and ten 625 horsepower (466 kW) DC electric motors. Some systems in Big Muskie were electro-hydraulic, but the main drives were all electric.[3] While working, Big Muskie used the equivalent of the power for 27,500 homes, costing tens of thousands of dollars an hour just in power costs and necessitating special agreements with local Ohio power companies to accommodate the extra load. The machine had a crew of five, and worked around the clock, with special emphasis on night work since the per kilowatt-hour rate was much cheaper.
mod edit : https://en.wikipedia.org/wiki/Big_Muskie shame they couldn't get my name right LOL
