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Military


Hopper Dredges

Specifications
ESSAYONSMcFarlandWheelerYAQUINA
Loaded displacement 10,00019,030.9 L. tons
Gross tonnage 10,164 tons
Length 350' 300 '408 ft, 3 in200'
Beam 68' 74 '58'
Height (keel to top of mast) 156 ft
Draft 17'
Light 22' 23'
Loaded 27' 29 feet, 6 in8'
Dredging Depth 13'
Normal 80' 45'
Extended Dragarms 94' 55'
Hopper Capacity 6000 cubic yards 8,000 cubic yards 1050 cubic yards
Engines Four EMD(GM) DieselTwin diesel with bowthruster
Total horsepower 4 x 3600 h.p. each 10,400 main
800 on bowthrusters
Shafting Twin propeller
controllable pitch
Vessel Speed, Light 13.8 knots 11 knots
Vessel Speed, Loaded 13.5 knots Loaded14.4 knots 10 knots
Ship service Generator Engines Caterpillar/Kato Diesel Two Caterpillar Diesel 1125h.p. each
Dredge Pump Engines Two-1650 h.p. Mounted on Drag Arms Caterpillar 565 h.p.
Two-3000 h.p. Mounted Inboard
Pumpstwo centrifugal pumps
Pump Intake 18"
Pump Discharge 16"
Drag arms2 overside @ 28" diameter
1 centerwell @ 42" diamter
Crew 56 total, divided into 2 working tours



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