Brunvoll AR-3000 stern

The Brunvoll AR‑3000 is a retractable azimuth thruster designed for stern installation, delivering up to 3 000 kW (≈390 kN thrust) with a 2.5 m propeller diameter, and can be retracted into the hull when not in use to reduce drag; source-listed power 3000.0 kW. The supplied category identifies it as Retractable Azimuth Thruster, and it is normally installed below the hull or in a dedicated thruster compartment as a steerable propulsion unit capable of rotating its thrust direction. In that role, its primary purpose is to provide both propulsion and steering by vectoring propeller thrust through the azimuth unit. Compared with a conventional shaft, rudder and propeller arrangement, an azimuth thruster combines thrust generation and steering in one rotating unit. Within the supplied list, this entry is distinguished from neighbouring variants by its model designation and the explicitly listed power; no further model-specific difference is stated in the source. No additional performance, approval or construction detail is inferred from the model code beyond the information supplied in the source record. For exact ratings, dimensions, settings, capacities, materials and variant-specific limits, refer to the manufacturer documentation for the exact figure.