Alfa Laval
Alfa Laval OceanGlide
Fluidic air lubrication creating an air layer under the flat bottom; the company cites up to 12% propulsion power savings.
Efficiency & wind products
34 products
Technologies that cut propulsion power demand: wind-assist rigs, air lubrication, flow-improving ducts and fins, and high-performance rudders.
Filter products: Efficiency & wind
Anemoi Marine Technologies
Anemoi Rotor Sail
Composite rotor sails with fixed, rail or folding deployment for cargo-handling and air-draft clearance; the company cites 5-30% fuel and emission savings.
BAR Technologies
WindWings
Patented three-element rigid wing sail in 37.5 m (750 m2) and 20-24 m (200-240 m2) sizes for large and smaller merchant ships.
Becker Marine Systems
Becker Mewis Duct
Pre-duct with integrated fins that improves propeller inflow on slow, full-form ships; installed on over 2,100 vessels.
Becker Marine Systems
Becker Twisted Fin
Duct and fin energy-saving device for slimmer, faster ships such as container vessels; installed on over 900 vessels.
Becker Marine Systems
Becker Rudders (Flap, Twist, Schilling)
Flap, twisted and high-lift fishtail rudders for better manoeuvrability, reduced cavitation and propulsion efficiency.
Becker Marine Systems
Becker Rotary Vane Steering Gear
Low-pressure hydraulic rotary vane steering gear with integrated bearings, 160–500 kNm, for smaller vessels.
bound4blue
eSAIL
Autonomous suction sail in three models, 3.5–6 m wide and 16–36 m high; the company claims fuel savings of up to 40%.
Chantiers de l'Atlantique
SolidSail rig
Rigid composite panel sail on a 360° rotating carbon mast, 800–1,500 m² per rig; the 1500 version tilts up to 70°.
Econowind
VentoFoil
Non-rotating suction wing with vents and internal fans; available as flatrack, containerised base-frame or fixed installation. 3-Series has DNV type approval.
GT Wings
AirWing Jet Sail
Rigid wing sail using powered airflow (Jet Sail technology) to produce high thrust from limited deck space and air draft.
Jastram Engineering
Jastram Engineering steering systems
Custom hydraulic steering systems for vessels of 15-220 m by Jastram Engineering (North Vancouver, Canada).
Kongsberg Maritime
Promas propulsion & manoeuvring system
Energy-saving integration of propeller, costa bulb, hub cap and twisted rudder; 3–8% saving claimed on single-screw ships.
Kongsberg Maritime
Tenfjord steering gear (divested)
Rotary vane steering gear formerly sold by Kongsberg; the steering gear and rudder business was sold in 2024 to Norvestor and now trades as Neuver Maritime.
Kongsberg Maritime
Flap / high-lift rudders (divested)
High-lift rudders formerly sold by Kongsberg; the rudder business was transferred to Neuver Maritime (Norvestor) in 2024–25.
Michelin WISAMO
WISAMO wing sail
Automated inflatable wingsail on a self-supporting telescopic mast; S-WING 170 m², fully retractable; DNV AiP.
Mitsubishi Heavy Industries
MALS (Mitsubishi Air Lubrication System)
Blows a layer of air bubbles under the flat hull bottom to cut frictional resistance; over 5% fuel saving measured on a ferry.
Mitsui O.S.K. Lines (MOL)
Wind Challenger
Automatically controlled telescopic GFRP hard sail developed with Oshima Shipbuilding; first on Shofu Maru (2022).
MOL Techno-Trade (PBCF)
PBCF (Propeller Boss Cap Fins)
Finned propeller cap that breaks up the hub vortex; about 3–5% fuel/CO2 saving claimed, over 4,500 ships fitted, retrofittable.
Norsepower
Norsepower Rotor Sail
Automated rotor sails in five sizes (20x4 m to 35x5 m) with optional tilting foundation; the company cites 5-25% typical fuel savings.
Oceanbird
Oceanbird Wing 560
46 m tall rigid wing sail (about 40 x 14 m sail) that can be tilted and stowed for port and bridge clearance.
OCEANICWING
Seawing
Automated parafoil kite flown from the bow; the 300 m² prototype gives about 25 t theoretical towing force, and a 600 m² version targets about 50 t.
OceanWings
OceanWings wingsail
Automated, reefable rigid composite wingsails of about 363 m² in fixed, tiltable, elevator and lowerable versions.
Samsung Heavy Industries
SAVER Air
Shipyard-developed air lubrication system fitted to SHI-built LNG carriers, container ships and tankers to reduce hull friction.