Asymmetric Propulsion

Unmanned Underwater Vehicles (UUVs) are designed to conduct efficient surveys over large areas and find targets of interest. However, close-up inspections of these targets require station-keeping and maneuvering capabilities that are only available from Remotely Operated Vehicles (ROVs). An Asymmetric Propulsion system provides a UUV with the maneuverability of an ROV in the torpedo-shaped form factor of a UUV, meaning that a single vehicle can perform both surveys and inspections during the same deployment.

2x Speed. WHOI 2020.

Asymmetric Propulsion works by varying the speed of a single-bladed propeller throughout its rotation. This provides both thrust and steering from a single motor, improving low-speed maneuverability while eliminating the need for fins and additional motors for control. Asymmetric Propulsion technology was initially developed at the Woods Hole Oceanographic Institution (WHOI). ARMADA is collaborating with WHOI to further develop the technology for a range of applications. The propulsion solution ARMADA is bringing to market uses the benefits of Asymmetric Propulsion to reduce size, weight, drag, and complexity, all while creating a more robust, efficient, and capable system.