Offshore patrol special vessel Corvette BIS-91

The corvette will be equipped with one intercept vessel up to 13 m long, intended for rescue and intervention, which will be able to reach a maximum speed of at least 40 knots, as well as accept and transport at least 10 people. The vessel will be lowered and raised by a fast stern ramp, at sea state not exceeding 4. The corvette will be equipped with two cranes designed to load intermodal containers, supply cargo warehouses, and carry equipment for removing oil pollution from the sea. The corvette is planned to accommodate one naval helicopter (NH-90 or Sea Hawk) in collapsible storage on deck. It is also planned to accommodate one unmanned aerial vehicle specialized for use at sea for reconnaissance and observation activities with the possibility of transmitting the recordings of the surface condition to the mothership in the areas where the vessel performs its tasks. The helicopter platform at the stern of the ship will also be used to operate the unmanned aerial vehicle. To improve stability, vessels will be equipped with an active stabilization system. The corvette will be structurally prepared for the installation of additional equipment on both sides of the bridge deck. The low silhouette of the hull and the compactness of the superstructure will have a beneficial effect on reducing the visual and radar visibility of the corvette. To reduce thermal visibility, the emissions of all diesel engines will be taken into the sea. To reduce magnetic visibility, i.e., the protection against magnetic and induction mines, the corvette will be equipped with an automatic system for compensating its magnetism.