Page 37: of Marine News Magazine (December 2020)

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INNOVATIVE PRODUCTS 2020

HULL CRAWLERS

Greensea

When it comes to ship ef? ciency and emissions reduction, the next fron- tier is devising better means to keep hulls clean from biofouling between

ELECTRIC ADVANTAGES, dry dockings. Send in the robots. Jotun, working with technology partners

DIESEL CAPABILITIES

Kongsberg, Semcon, DNV GL, Telenor, as well as shipping companies Wal-

The Electro-Hybrid Drive lenius Wilhelmsen, Berge Bulk and Maersk, launched the HullSkater mag- (EHX) system from waterjet netic crawler to provide condition monitoring, inspection and cleaning. Sep- propulsion specialist Ham- arately, Greensea has introduced a new hull crawler that attaches a ROV to a iltonJet offers all the advan- ship hull without magnetics, allowing the operator to “drive” the ROV and tages of electric drive with the payloads over the hull for similar services. Initial hull crawlers are designed full capabilities of diesel. The to work exclusively with the VideoRay Mission Specialist Defender ROV.

electric motors, power elec- tronics and control system are seamlessly integrated with the waterjets, engines, gearboxes or clutches, and the control system manages the hybrid energy ? ow between engines, batteries and motors, while charging and discharging the batteries as required. There’s an automatic setting, plus a manual setting delivering four different modes of opera- tion: diesel only, electric only, charging or electric boost.

HamiltonJet Jotun

RIVER RADAR

Alphatron Marine’s next generation river radar, the JMR-611, characterizes itself by an excellent suppression of wave action on wide water. In addition, this radar uses an aerodynamic scan- ner and an associated modi? ed motor, making the radar suitable for even the most extreme weather conditions.

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