Rim-driven thruster technology has emerged and demonstrated potential for compact and super-silent maneuvering propulsion.
Silentdynamics customized rim-thruster-based propulsion solutions applications include tunnel thrusters, and Silentdynamics ERT thrusters can be configured to be retractable and/or azimuthing. Major benefits include low noise emissions and compact dimensions. This is achieved by utilizing carbon-fiber blades, water-lubricated hydrodynamic bearings and a hubless propeller design. www.silentdynamics.de
(As published in the March 2015 edition of Marine News - http://magazines.marinelink.com/Magazines/MaritimeNews)
Southern Ocean separating these extremes. This ice capable vessel has also been designed to meet the underwater radiated noise requirements of the DNV “Silent R” notation up to 11 knots – a capability that enables her to undertake the most sensitive types of environmental research. Investigator is fitted
, adding that even without a battery, “This (trawler) is special because the complexity is quite high, and it has an advanced processing system onboard.”Silent-silent ModeWith an option for a second vessel already aired, it’s easy to think this has been just another order. Yet all the parties — from the owner
noise measurements. The main sources of background noise are the towing carriage and the propeller drive train. Therefore, we have installed a lightweight, silent towing carriage fitted with polyurethane wheels. To reduce noise from the propeller drive train, solid shafts and special bearings are used. Background
and promises given to the Congress in the summer of 1984, that shipbuilding programs would be proposed by early November, the Administration remained silent about the matter throughout the presidential political campaign. Recently, a maritime spokesman stated that the previous general policy would
the research community could possibly want. Investigator is classed by Lloyds Register of Shipping as a +100A1, +LMC, UMS Ice 1C IWS, EP, DP (AM) and DNV SILENT-R research vessel. Designed to meet the underwater radiated noise requirements of the DNV “Silent R” notation up to 11 knots, this capability allows
Altered Read Only Memory automatically resets to the last station used. It has automatic self test. Voice-sensing squelch makes reception silent until a message is received. Variable RF gain adjusts receiver sensitivity. All 192 ITU international channels plus another 44 user-programmable
(GMDSS). The receiver can reportedly store up to 30 messages over a 68-hour period with a reception distance of400 miles offshore. A high speed, silent thermal recording printhead is used to produce radio telex messages. The unit is also equipped with an audible and visual alarm to alert users
all usable secondaries of any Loran C chain. Time Differences (TDs) of any two secondaries can be displayed simultaneously. Operation is completely silent. Four automatic or manually variable notch filters eliminate interference. Microprocessor and large-scale integration (LSI) design makes for smaller
, and comes complete with all installation hardware. Optional equipment includes a digital clock which automatically lifts mute during silent periods. For complete free literature, write to Robert E. Negron, Electro- Nav House, 840 Bond Street, Elizabeth, N.J. 07201. Ask for "Watch.
room features varnished cherry wood paneling and trim. The vessel is powered by two ownersupplied Detroit Diesel 16V-92 engines, soft mounted for silent operation with Lo-Rez vibration mounts and couplings. Electric engine controls by Mathers provide throttle and gear control, while a Murphy alarm
retractable tunnel thrusters, as well as combined tunnel and azimuthing units, various non-retractable azimuthing units, and low noise 'Super Silent' thrusters. Recently the company identified a need for what it calls customized thrusters, units that are not only designed to meet the specific
MR NOV 2019_Index_revised2:Layout 1 11/7/2019 9:15 PM Page 1 ADVERTISER INDEX Page#Advertiser Website Phone #Page#Advertiser Website Phone # 55Advanced Mechanical Enterprises .www.amesolutions.com . . . . . . . . . . . . . . . . .(954) 764-2678 C3KE Marine / Worldwide Diesel . . . . .www.kemarine.com . .
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This directory section is an editorial feature published in every issue for the convenience of the readers of MARITIME REPORTER. A quick-reference readers’ guide, it includes the names and addresses of the world’s leading manufacturers and suppliers of all types of marine machinery, equipment, supplies and
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ROSE POINT ECS FLEET SERVICES Rose Point Navigation Systems is moving into the Fleet Management market with the announcement of their next level of product offering called Rose Point ECS Fleet Services. ECS Fleet Services is an optional add-on to Rose Point ECS Update Services. The new set of features
P PRODUCTS HEAVY LIFT & DECK MACHINERY timated 390 tons and reach of more than optional 670 HP (500 kW) electric drive Sennebogen SENNEBOGEN will deliver the ? rst 130 feet, the 895 E is the largest material motor. It’s offered with a choice of three of its new 895 E Series model to North handler
V VESSELS PATROL CRAFT Damen Patrol Vessels for Offshore Nigeria amen recently delivered a companies. Features of the 33m vessels four weeks and travel 1,200 nm in and ity and cost effectiveness to the bene? t pair of FCS 3307 high-spec include Damen’s trademark Axe Bow around Nigeria’s coastal and
V VESSELS 45m Cat for AZAM 18 Meter Fire-Floats for Bangladesh Robert Allan Ltd. has delivered a design of two unique ? re-? oats to Khulna Shipyard Ltd. in Bangladesh. The boats will measure 18.9 m x 5.3 m with a special hard chine semi-displacement hull designed for river service and ? tted with
M MARITIME MEDICAL CREW CARE “Medical care has to be managed by medical professional companies to ensure that cases are handled in the most ap- propriate way, crew members get highest quality of medical care at the most reasonable price. Additional requirements of GDPR put even additional pressure to
M MARITIME MEDICAL CREW CARE Crew Care: Managing Mariner Medical Care By Joe Keefe he competent authority shall as the population on shore enjoys. But, the embarking any mariner, a trusted 2012. There are several key aspects to require that, prior to begin- that’s not always the case. In case of
E EMISSION REDUCTION TECH FILES AMETEK Land Emissions Monitoring AMETEK Land, a provider of combus- tion ef? ciency and environmental pollutant emissions monitoring instrumentation, has launched two new continuous emission mon- itoring systems (PM-CEMS) to provide accu- rate and reliable measurement of
E EMISSION REDUCTION TECH FILES Schottel Propulsion for Emission-Free Push Boat The agreement between Wärtsilä and Norsepower will pro- mote the use of Rotor Sails & support sustainable shipping. Wärtsilä, Norsepower Sign Agreement The technology group Wärtsilä and Norsepower, a provider of low maintenance
VOICES NICK BROWN, DIRECTOR OF MARINE AND OFFSHORE, LLOYD’S REGISTER what we believe will be prototype ves- LR research suggests that the cheap- as weather routing but these can only Digitalization has also enabled LR to sels, contracted and constructed in the est zero carbon fuels are going to be go
VOICES NICK BROWN, DIRECTOR OF MARINE AND OFFSHORE, LLOYD’S REGISTER 5 minutes with LR’s Nick Brown By Greg Trauthwein “LR research suggests that the cheap- est zero carbon fuels are going to be at least double the price of fuels today.” Nick Brown, Lloyd’s Register Photo: Lloyd’s Register To kick things
OFFSHORE WIND THE INSTALLATION FLEET 110MW Changhua wind farm in 2020. Both wind farms are currently under construction.” Esteyo’s ELICAN Seajacks concept. UK-based Seajacks has been operating in the off- Source: ALE shore wind business since 2006. Since then, it’s built the Kraken, Leviathan, Hydra
OFFSHORE WIND THE INSTALLATION FLEET Brave Tern and Bold Tern in port of Esbjerg Source: Fred. Olsen Windcarrier watt (MW) turbines could be available tractors and there are questions over neck in handling these large turbines You really need big machines, bigger in the timeframe of those projects.
ENVIRONMENTAL GREEN SHIP RECYCLING states when the recipient country cannot though not rati? ed by the requisite num- be required to have an initial survey to been uniquely tailored to the vessel. deal with the waste in line with the Con- ber of countries representing 40% of verify the inventory of
SHIPBUILDING USCG POLAR SECURITY CUTTER vessel to reach the North Pole unaccom- transits to get on station and conduct Mardiros. The number one mission for panied—but it is designed primarily for operations with limited or no logistics the new PSC will be to carry out the an- Meet The “Fleet” scienti?
SHIPBUILDING USCG POLAR SECURITY CUTTER the region. The Coast Guard is the sole to man, and there are signi? cant natu- economic investments with every Arctic Urgent requirement provider and operator of the U.S. polar ral resources there,” said Coast Guard nation in key strategic areas, such as oil
SHIPBUILDING USCG POLAR SECURITY CUTTER Polar Security Cutter will provide meaningful presence in polar regions By Edward Lundquist he Coast Guard needs a ship economic zone above the Arctic Circle). ed. Protecting America’s interests in the Coast Guard leadership and presence that can do more than
WORKBOATS SOUTHERN TOWING COMPANY That’s signi? cant … were questions in the industry as to the solution. In my ? rst 12 months my con- gether.” And from that point on, we have It is signi? cant. There are still naysay- units robustness. versations with ZF were challenging to re? ned the Z-drive we
WORKBOATS SOUTHERN TOWING COMPANY “No vessel can maneuver a tow into or out of a dock as good as the Z drive. And then you start talking about bumps and bruises on your barges, a lot of which come when you’re docking and undocking ... the safety contribution that Z-drives makes to marine transpor- tation