Manta™ Manta is a submerged configuration of Pterofin's oscillating-wing technology, designed for tidal and ocean-current applications where the energy resource sits below the surface. Manta applies the same underlying principle as Skimmer — a reciprocating wing that converts fluid motion into mechanical power without a continuously rotating rotor — adapted for fully submerged deployment. Development is at an earlier stage than Skimmer, which remains Pterofin's primary focus for near-term validation. The videos below show early Manta prototype testing. Explore the Technology