The MRB is a 49 foot vessel that has been designed from the start to be modular. It uses a standard crew of 3. Located at the bow of the boat is a retractable ramp. This, in addition to strengthening of the hull, allows the boat to beach itself for transfer of personnel and equippment on unimproved shores. The stern mounted anchor and winch allow the boat to tow itself afloat, rather than utilize the impellers. It is constructed largely from aluminum.