Self-propelled grain barges are vessels that are designed to transport grain or other bulk cargoes on inland waterways or in coastal areas. As the name suggests, these barges are self-propelled, meaning that they have their own engines and are capable of moving independently without the need for towing.
In the context of the information you provided, the self-propelled grain barges have the following characteristics:
Barge 1 has a deadweight carrying capacity (DWCC) of 1,124 metric tons on a draft of 2.53 meters. It has a cargo hold capacity of 1,800 cubic meters, which means it can carry up to 1,800 metric tons of grain. It also features two hatch openings and hoisting equipment, which makes it easier to load and unload the cargo.
Barge 2 has a DWCC of 743 metric tons on a draft of 2.62 meters. It has a cargo hold capacity of 743 cubic meters, which means it can carry up to 743 metric tons of grain. It features one hatch opening and hoisting equipment for loading and unloading the cargo.
Overall, self-propelled grain barges are an efficient and cost-effective mode of transportation for bulk cargoes like grain, as they can access shallow waterways and ports that may not be accessible to larger vessels.