Underwater operations, especially those in deep water, tend to be extremely inefficient. This is due to the deployment time of the vessel from the port to the site of operations and the equipment deployment time from the vessel to its underwater position. In addition, the capabilities of remotely operated devices (RODs) such as ROVs (remotely operated vehicles), grasping devices, or excavators are limited both by their configuration and by their suite of onboard systems. This restricts their ability to handle the variable circumstances that occur in underwater salvage. If a situation occurs that is beyond the capabilities of the equipment onboard the salvage vessel, the efficiency suffers. A significant amount of time can be lost trying to provide alternate procedures for accomplishing the task. The normal alternatives are to attempt a system modification to ROD, to wait for the delivery of a ROD with capabilities equal to the task at hand, or to return the recovery vessel to port in order to retrofit it with alternate equipment. All of these options require great time and expense.

       UnderSea Recovery Corporation is currently developing a series of modular polymorphic devices that can be rapidly reconfigured in the field. This will save both time and money. When a task cannot be accomplished by the ROD as configured, the ROD can usually be appropriately reconfigured within a few hours. This flexibility is currently unavailable in underwater technology.

       These rapidly-reconfigurable polymorphic remotely operated devices (RR-PRODs) are based on a system of lightweight, low drag polypropylene trusses along with standardized underwater thrusters, sensors, grasping arms, and controls. All configurations use a common umbilical tether for power, control signals, and sensor data. These systems can be easily reconfigured to provide capabilities not foreseen in the initial recovery scenario. Capabilities such as RR-PROD size, shape, arm reach, grasping morphology, and load capacity can be changed at will in a short period of time. These capabilities allow for increased efficiency and lower recovery cost. In many cases these systems will enable the recovery of previously unreachable items.

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