The barge/ship is a hopper dredge for sand and gravel? Material is pumped into the hoppers, dewatered and then unloaded on shore for construction? What size clamshell bucket is on the 870? Do you know the specific gravity of the material? Can the machine Handle a full bucket of the material fully extended? The operator keeps the dipper crowded in towards the machine until he opens the bucket on shore-,is that done to keep the vessel from rolling too much?
good operator
The barge/ship is a hopper dredge for sand and gravel? Material is pumped into the hoppers, dewatered and then unloaded on shore for construction? What size clamshell bucket is on the 870? Do you know the specific gravity of the material? Can the machine Handle a full bucket of the material fully extended? The operator keeps the dipper crowded in towards the machine until he opens the bucket on shore-,is that done to keep the vessel from rolling too much?