Blade Propellers

  • Amoco's tug Michigan, operating through the winter in Lake Michigan last year, experienced damage to its stainless monobloc propellers necessitating unscheduled drydocking of the vessel twice and the installation of a spare propeller.

    Lips Propellers was approached as to the feasibility of designing a detachable blade propeller with comparable strength and a hub geometry no larger than the original monobloc propellers. Lips responded with a four-blade design which combined the efficiencies of the original monobloc design with the advantages of a detachable blade propeller.

    Spare blades can easily be stored aboard the vessel or easily shipped, even by air, allowing prompt replacement when damage is sustained.

    The vessel does not need to be drydocked, and the removal and replacement of blades can be accomplished with lighter lifting equipment. Only damaged blades need to be removed and repair of damaged blades can be expedited due to the ease of shipment and handling.

    For free literature containing full information on the entire line of Lips Propellers, Circle 17 on Reader Service Card

  • 21 feet and a depth of 8 feet. She will be powered by a pair of GM 12V71 diesels with a combined horsepower of 800 driving 42-inch-diameter four-blade propellers. Interior arrangements will include a complete galley, dinette area, and accommodations for a crew of three. Marco plans to deliver the vessel on

  • and the economical operation of the long tow. Maneuverability for the Charles Haun is p r o v i d e d through two 84-inch stainless-steel four-blade propellers, two steering rudders and four flanking rudders. The steering system was furnished by Skipper Hydraulics, Inc. Deck machinery consists of

  • . Visibility from the pilot house of 360° and a 23 foot eye level enhance this vessels appeal. Below the waterline are custom design four blade propellers and double plated main and flanking rudders that will give this vessel high maneuverability and excellent bollard pull

  • by 18-foot-wide Anne Marie, built by Louis G. Ortis Boat Co., is equipped with a Twin Disc MG515 marine gear, 4.5:1 ratio, 52-inch by 38-inch four-blade propellers, and Fernstrum keel coolers. The workboat is currently used in moving and positioning the barge carrying a dragline when performing dredge

  • wide and 7.5 feet in depth. Main propulsion is provided by two Cummins NT-855-M diesel engines to twin Michigan Nibrow 40- inch by 32-inch four-blade propellers through Twin Disc MG509 reduction gears with a 2.95:1 ratio. The NT-855-Ms are each rated at 300 hp at 1,800 rpm. Electrical power is provided

  • actuated by an engine-driven hydraulic system designed by Riverway Shipyard. The Plant 69 is fitted with two Federal "Power Thrust" bronze four-blade propellers, 34 by 32 inches. The 10-foot by 10-foot pilothouse was insulated with 3-inchthick insulation and covered with 10-gauge steel plating. The

  • gallons of fuel and 400 gallons of potable water. Power is provided via a pair of MTU 8V 396 TE94 diesel engines developing 1,500 hp drive five-blade propellers on each of the boats through ZF BW 255 reverse/reduction gears.

  • 11.5 ft. (3.5 m). The vessel is powered by two Cummins KTA-38MO diesel engines rated at 750 bhp at 1,600 rpm, driving Bollinger 72 x 57-in., four-blade propellers through Twin Disc reverse/reduction gears with a ratio of 4.96:1. Hydraulic steering is installed at two pilothouse stations and a 272 hp

  • is powered by two Detroit Diesel 12V71 turbocharged diesel engines developing 510 hp each at 2,100 rpm. They drive 33- inch by 28.5-inch four-blade propellers through reverse/reduction gears with a ratio of 2.0:1. Two 40-kw diesel generators driven by two Detroit Diesel 3-71 engines provide electrical

  • power will be from two Cummins Model NT-1150M engines with Capitol reverse/reduction gears, all furnished by Cummins-Wisconsin, Inc. The four-blade propellers and Armco "Aquamet-18" propeller shafts are being furnished by Kahlenberg Brothers Inc. of Two Rivers, Wis. Electric power will be furnished

  • vessel is powered by twin General Motors Electro- Motive Division diesels. She is also equipped with 108-inch by 108-inch stainless steel four-blade propellers in Kort nozzles; an International model 191 double drum winch; and her electronic equipment consists of VHF, FM, and SSB radios; two Decca

  • MR Feb-24#44 Tech Files
Latest Products & Technologies
MarineShaft)
    February 2024 - Maritime Reporter and Engineering News page: 44

    Tech Files Latest Products & Technologies MarineShaft Yanmar Hydrogen MarineShaft specializes in urgent re- Fuel Cell AIP pair/replacement of damaged rudder and Yanmar Power Technology Co., Ltd. propeller equipment along with many (Yanmar PT), a subsidiary of Yanmar on-site repair services. MarineShaft

  • MR Feb-24#36 HYBRID 
2-stroke controllable pitch 
propeller PTO powertrai)
    February 2024 - Maritime Reporter and Engineering News page: 36

    HYBRID 2-stroke controllable pitch propeller PTO powertrain Source: MAN Energy Solutions how the system is intended to operate, says Oskar Levander, VP Strategy & Business Development, Kongsberg Maritime. For example, a primary shaft-driven PTO rotates whenever the engine is running; a secondary one

  • MR Feb-24#35 PTI/PTO
30 years ago shaft generators with PTI capability)
    February 2024 - Maritime Reporter and Engineering News page: 35

    PTI/PTO 30 years ago shaft generators with PTI capability kept container ships sailing at top speed. That purpose gone, PTI/PTO is making a new comeback in more cargo shipping segments, this time for reducing emissions. By Wendy Laursen etro? tting a shaft generator is not an insigni? - the ef? ciency

  • MR Feb-24#33 EAL  AND STERN TUBE DAMAGES
STACKING 
not forget any oil)
    February 2024 - Maritime Reporter and Engineering News page: 33

    EAL AND STERN TUBE DAMAGES STACKING not forget any oil leak, big or small, can be catastrophic to the marine environment and marine life, with some EALs found to THE DECKS be only slightly less damaging than the phased-out traditional WITH BEST-IN-CLASS MARINE oils,” said VP of Business Development

  • MR Feb-24#32 REPAIR
Photo Courtesy Marine and Industrial Transmissions
in)
    February 2024 - Maritime Reporter and Engineering News page: 32

    REPAIR Photo Courtesy Marine and Industrial Transmissions ings to optimize load distribution. A large number of the incidents analyzed by Gard were attributed to ghost ? shing gear that enter the stern tube seal area causing seawater to contaminate the lubrication oil. A 2022 study by CSIRO scientists

  • MR Feb-24#31 EAL  AND STERN TUBE DAMAGES
“Our recommendations 
“A good)
    February 2024 - Maritime Reporter and Engineering News page: 31

    EAL AND STERN TUBE DAMAGES “Our recommendations “A good bearing are simple. Please design is have good control over important.” your oil quality in the primary barrier, the aft – Øystein Åsheim Alnes sealing system,” Head of section for Propulsion and Steering, – Arun Sethumadhavan DNV

  • MR Feb-24#11 down to a smaller size, and especially a smaller width)
    February 2024 - Maritime Reporter and Engineering News page: 11

    down to a smaller size, and especially a smaller width relieves waterfront infrastructure footprints and costs. that issue. One may argue that one human with a bigger truck These 5-foot wide units will zip through the city much faster can deliver more cargo than one human with a smaller truck, and

  • MN Feb-24#43 Products
  In-Mar Solutions VETUS Maxwell
1 2  
3
  
Volvo)
    February 2024 - Marine News page: 43

    Products In-Mar Solutions VETUS Maxwell 1 2 3 Volvo Penta 4 Cambridge Pixel fessional Platform, enables a vessel to Seakeeper 1. In-Mar Solutions: 5 have up to eight power sources, and Alu Pilot Chairs & Deck Rails In-Mar Solutions offers a complete includes matched software, services

  • MN Feb-24#40 Vessels
HOS Warhorse & HOS Wild Horse 
shipyard construction)
    February 2024 - Marine News page: 40

    Vessels HOS Warhorse & HOS Wild Horse shipyard construction contracts were wrongfully termi- nated. Gulf Island and Hornbeck settled in October 2023, clearing way for the builds to be completed by another yard. Eastern secured the contract to complete the builds from Zurich American Insurance Company

  • MT Jan-24#33 four of its 18 Ohio-class SSBNs and  They can also operate)
    January 2024 - Marine Technology Reporter page: 33

    four of its 18 Ohio-class SSBNs and They can also operate without the wires, These weapons are launched over the side converted them to conventional cruise using their own active or passive sensors. of surface ships with the ubiquitous MK missile carriers. The ? rst four Ohio- They are programmed to

  • MR Jan-24#28 MEET THE CTO
emission target.
“We decided it’s better to)
    January 2024 - Maritime Reporter and Engineering News page: 28

    MEET THE CTO emission target. “We decided it’s better to have 3 vessels with dual For the largest ships in the CMB fuel than to have one zero-emission vessel [with ? eet, the focus is on ammonia, as it is no market]. [A zero-emission vessel is] often a cheapest from a production point of white elephant

  • MR Jan-24#26 MEET THE CTO
has grown to 90 people across several)
    January 2024 - Maritime Reporter and Engineering News page: 26

    MEET THE CTO has grown to 90 people across several something that is scalable.” fuels, resulting in an overall reduction world regions, and this technical talent Next the CMB.TECH team targeted of 65% of traditional fuel consump- base is central to Campe completing the Crew Transfer Vessel (CTV) used

  • MT Nov-23#23 “In keeping with that 
spirit, Arctic Storm 
challenged us)
    November 2023 - Marine Technology Reporter page: 23

    “In keeping with that spirit, Arctic Storm challenged us with delivering an integrated package that would allow the crew to maximize catch ef? ciency – reducing both time on the water and vessel emissions – while working seamlessly within the ship’s Brett Johnson, Jess Woodruff, wider operation

  • MR Dec-23#43 into force in 1958, and only gave the IMO broad and)
    December 2023 - Maritime Reporter and Engineering News page: 43

    into force in 1958, and only gave the IMO broad and, vague tion. But shipbuilders, oil companies, miners, chemical man- powers “to deal with” the regulation and practices “relating ufactures and others with huge ? nancial stakes in shipping, to technical matters of all kinds affecting shipping in inter-

  • MR Dec-23#39 EAGLE VELLORE
EAGLE VELLORE
AET delivered its newest vessel)
    December 2023 - Maritime Reporter and Engineering News page: 39

    EAGLE VELLORE EAGLE VELLORE AET delivered its newest vessel, the ? rst of three Very Large Crude Carrier (VLCC) powered by dual-fuel lique? ed natural gas Photo courtesy AET (LNG) engines, on long-term charter to Shell Tankers (Singapore) Private Limited. The Malaysian-? agged Eagle Vellore was

  • MR Dec-23#38 G    REAT
of BERLIN EXPRESS
HIPS
S
2023
Photo courtesy)
    December 2023 - Maritime Reporter and Engineering News page: 38

    G REAT of BERLIN EXPRESS HIPS S 2023 Photo courtesy Hapag-LLoyd BERLIN EXPRESS SERI DAMAI Hapag-Lloyd welcomed Berlin Express into its ? eet, the MISC welcomed two of its latest new generation of Lique- ? rst ship of its new Hamburg Express class and the ? rst of a ? ed Natural Gas (LNG) carriers

  • MR Dec-23#37  fast as typical 
nacelle and blades for 7MW turbines or three)
    December 2023 - Maritime Reporter and Engineering News page: 37

    3,200kW units) with a maximum naviga- of carrying all parts at once, including the tower, tion speed of 11 knots, or twice as fast as typical nacelle and blades for 7MW turbines or three barge-type SEPs pulled by tugboats. The ship is 12MW turbines, with the capability to – includ- also ? tted with dynamic

  • MR Dec-23#27 UNDERWATER NOISE 
ABB’s DynaFin 
propulsor will be 
designd)
    December 2023 - Maritime Reporter and Engineering News page: 27

    UNDERWATER NOISE ABB’s DynaFin propulsor will be designd to allow for the use of optimized ABB trajectories to reduce propeller noise. There are many technologies available to reduce URN, some of which may also reduce fuel consumption. However, Spence says it’s not just a case of picking out a

  • MR Dec-23#26  for con- system’s individual blade control allows ?  exibility)
    December 2023 - Maritime Reporter and Engineering News page: 26

    explains, ABB’s Global Product Line Manager, ABB Dyna? n, says the that’s an over-simpli? ed generalization mainly valid for con- system’s individual blade control allows ? exibility in blade stant rpm operation. FPPs can usually be built with more pro- trajectories to maximize propulsion ef? ciency

  • MR Dec-23#25 UNDERWATER NOISE 
he main thing holding the shipping)
    December 2023 - Maritime Reporter and Engineering News page: 25

    UNDERWATER NOISE he main thing holding the shipping industry back from reducing its underwater radiated noise (URN) is not a lack of appropriate technology. It’s argued that many of the technologies being REDUCING implemented today to reduce fuel consumption T also reduce noise. So, the noise reduction

  • MN Nov-23#54 Feature
Great Vessels of 2023
All American Marine
SHACKLEFOR)
    November 2023 - Marine News page: 54

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  • MN Nov-23#49 R.B. WEEKS
Eastern Shipbuilding Group
Florida shipbuilder)
    November 2023 - Marine News page: 49

    R.B. WEEKS Eastern Shipbuilding Group Florida shipbuilder Eastern Ship- rier islands and nourishing beaches an electrical power, propulsion, and building Group (ESG) this Spring de- lost to erosion, aiding the U.S. Army dredge machinery package by Royal livered R.B. Weeks, a 8,550 cubic yard Corps of

  • MN Nov-23#27 Feature
Power & Propulsion
not subject to speci?  c IMO)
    November 2023 - Marine News page: 27

    Feature Power & Propulsion not subject to speci? c IMO decarbonization measures such pair of Cat 3512E’s, each rated at 2,213 bhp, driving a Schot- as the Carbon Intensity Index, or CII), stressed that “due to tel SRP 430FP Z-drive unit. The same yard has two tugs un- signi? cant inherent differences in

  • MR Nov-23#70 In the Shipyard
Latest Deliveries, Contracts and Designs
Mar)
    November 2023 - Maritime Reporter and Engineering News page: 70

    In the Shipyard Latest Deliveries, Contracts and Designs Marcelle Melosira: Hybrid Research Vessel Derecktor Shipyards NY in Mamaroneck, N.Y. has deliv- tion with UVM and Chartwell, the 64-foot research catamaran ered a new hybrid research catamaran to the University of has been crafted to ful? ll the