Schneekluth Hydrodynamik
Schneekluth Wake Equalizing Duct (WED)
Pair of foil-profiled half-ring ducts ahead of the propeller that even out inflow; the company claims up to 12% fuel and 50% vibration reduction.
Efficiency & wind products
34 products, page 2 of 2
Technologies that cut propulsion power demand: wind-assist rigs, air lubrication, flow-improving ducts and fins, and high-performance rudders.
Filter products: Efficiency & wind
Silverstream Technologies
Silverstream System
Microbubble air carpet under the flat bottom; 5–10% net fuel savings claimed; newbuild or ~10-day retrofit.
Smart Green Shipping
FastRig
Lightweight, autonomous, stowable rigid wingsail for retrofit on bulkers and tankers; validated in 2024–25 sea trials.
Smart Green Shipping
FastRoute
Route-optimisation software that plans voyages to make the most of FastRig wind propulsion.
Smart Green Shipping
FastReach
Leasing model for FastRig with performance guarantees and maintenance included.
Van der Velden Marine Systems
Van der Velden rudder systems
Flap, fishtail, flanking and energy-saving rudders for inland, seagoing, dredging and fishing vessels; Barke reaches a combined 100-degree angle.
Van der Velden Marine Systems
Van der Velden steering gear
Hydraulic steering systems for single-screw twin-rudder (2DWK) and four-rudder (4DWKK) inland vessels, class-approved.
Wärtsilä
Wärtsilä EnergoFlow
Pre-swirl stator fins ahead of the propeller; about 2–7% savings, project-specific.
Wärtsilä
Wärtsilä EnergoProFin
Boss cap fins recovering hub-vortex energy; about 2% typical savings, up to 5%.
Wärtsilä
Wärtsilä EnergoPac
Propeller and rudder with bulb designed as one unit; about 2–9% power savings at trial speed.