Markey Equips Research Vessel Sally Ride

Posted by Eric Haun
Tuesday, August 19, 2014
Research Vessel Sally Ride (Photo courtesy of Scripps Institution of Oceanography)

Named for the first American woman launched into space aboard the Space Shuttle Challenger, the Research Vessel Sally Ride was commissioned August 9 at Dakota Creek Industries (Anacortes, Washington). Sally Ride is a U.S. Navy Office of Naval Research sponsored Auxiliary General Oceanographic Research Vessel (AGOR-28). The vessel’s advanced deck machinery will be operated by Scripps Institution of Oceanography personnel during extended scientific missions upon the seven seas. Missions to explore and study the hostile ocean environment implore low maintenance deck machinery designs for rugged durability. The Sally Ride is outfitted with two Electric Hydrographic Winches, an Electric Anchor Windlass and a Trawl/Tow Traction Winch System, all of Markey Machinery Company, Inc. (Seattle, Washington) design.

The hydrographic winches are Markey’s new high performance type CAST-6-125 with active heave compensation controls. These deep sea research winches include a proven motor-powered level wind with pushbutton pitch adjustment for new cable diameters. The shipboard cable pathway leads to articulated launch and recovery cranes for over the side load handling of samplers and instruments. The rotating elements of these modern hydrographic winches minimize rotating mass, maximizing winch responsiveness, and reducing stress on cables and equipment. When this automatic control mode is engaged the drive’s integral processor evaluates heave data, outputting counteracting speed/direction signals to control the drum and effectively eliminate 90% of the ship’s motion up to sea state 4 (moderate sea state) conditions. The winches drum carry up to 10,000 meters of 0.393 inch diameter fiber optic cable. The 125 horsepower motor produces cable pulls of 19, 825 lbs. at bare drum and 10,000 lbs. at full drum. The CAST-6 drums can easily be unbolted and swapped in as little as one hour to keep pace with ever changing research technology.

Sally Ride’s Trawl/Tow Traction Winch System is the all-electric Markey type DETW-9/11-48 supporting coring, trawling, towing, dredging, ROV, and other scientific operations. The system integrates the DETW-9/11-48 Electric Traction Winch, a DESR-11-48, and a DESR-9-30 Electric Storage Reels with local and remote controls and digital all-electric AC- variable frequency drives. The dual drum traction winch acts like a powered capstan multiplying the low tension tailing force of the storage reels. The two grooved dual drums of the traction winch, level wind turning sheaves and storage drum core diameters all are sized for a minimum bend diameter ratio of 40:1; thus the system is suited to, designed for, and proven operationally affective spooling 0.681 inch diameter fiber optic cable on AGOR-23 class vessels. Assuring long cable life on the high tension (working) side of the traction machine, the Sally Ride’s cable path is absent reverse bends. The Markey Traction Winch system utilizes a sheave-mounted load pin arrangement on the storage drum level wind. The continuous “low tension” output signal closes the torque control loop allowing the drive to maintain accurate constant cable tension and thus even, smooth spooling throughout the entire storage drum capacity. The amount of back tension is easily programmable by the operator and eliminates need for slack line preventers. The Sally Ride is scheduled to sail loaded with39,370 ft. of 9/16” 3x19 torque-resistant wire and 32,808 ft. of 0.680 inch electricalmechanical cable or 0.681 inch fiber optic cable. Each traction wheel is powered via a single 75 HP electric motor for 150 HP total performance and the storage reels are powered by single 30 HP electric motor. The system is rated to pull 26,500 lbs. at 205 ft. /min and light line pull of 16,500 lbs. at 300ft/min.

Finally, but certainly as important, the Sally Ride uses a Markey type WES-23 two wildcat electric anchor windlass to handle 1-7/16” grade 3 anchor chain. Designed for bolt-down installation, each wildcat on the WES-23 is fitted with a band-type brake, a jaw-type disconnect clutch and two 18” diameter warping heads at each end of the horizontal main shaft. The WES-23 is driven by a 30HP, NEMA-D marine motor that is rated for 30-minutes of continuous duty and fitted with a marine-duty spring-set / electric-release automatic disc-brake. The windlass is certified to meet ABS requirements equivalent to a single chain-pull of 14,200 lbs. at 30 ft. /minute and an overload capacity to 21,300 lbs.

An American astronaut, physicist, author and hero who embodied the tradition of exploration, Sally Ride’s spirit lives on in the newly built research vessel that bears her name. Providing the most reliable scientific deck machinery in the world, Markey is proud to be provider of this vessel’s mission-critical deck machinery. Markey’s 107 year history of developing pioneering machinery is the perfect accompaniment to the spirit Sally Ride brings to exploring inner space.

markeymachinery.com
 

Maritime Reporter January 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Navy

Greek Government to Halt Piraeus Port Sale

The new Greek government led by the left-wing Syriza party will halt the sale of a majority stake in the port of Piraeus, Greece's biggest, begun by the previous government,

Australian Tall Ship Rounds Cape Horn

The Royal Australian Navy operated Sail Training Ship Young Endeavour rounded Cape Horn on Australia Day, 36 days into a 12-month circumnavigation of the world.

Oil Tankers are Front Line of Libya's Struggles

Crew members killed in tanker attack this month; West fears worsening violence could lead to civil war. Oil shippers face higher costs and the possible loss of insurance cover on Libyan voyages,

News

Damen Delivers Workboat to Multraship

Towage and salvage operator Multraship has taken delivery of the first of two customized Damen Stan Launch 804s vessels for its line handling and boatmen service companies in Terneuzen,

WCI to Honor Sens. Alexander and Vitter

Waterways Council, Inc. (WCI) to honor Senator Lamar Alexander and Senator David Vitter with Leadership Service Awards; Washington Meetings and Waterways Seminar

Denmark's Budget Gap May Flirt with EU Limit if Oil Stays at $50

Denmark's government estimates its budget would lose 7.5 billion Danish crowns ($1.1 billion) if oil prices remained around $50 a barrel, according to a document

Marine Equipment

NewLead Holdings Acquire 5 Vessels

NewLead Holdings Ltd. announced today that it recently added five bitumen tanker vessels to its fleet. The Company has expanded its fleet to 10 vessels in less

Greatship to Buy PSV

Greatship (India) Limited (GIL), a wholly owned subsidiary of The Great Eastern Shipping Company Limited, has signed a contract to buy a 2015-built 4000 dwt Platform Supply Vessel (PSV).

SKF Expands Electric Motor Repair Network

Electric motors are among the highest in reliability incident reports, said SKF Canada, noting that for many companies, electric motor failures lead to a continual

Marine Science

Investment Impact in Inland Waterways System

The National Waterways Foundation (NWF) has commissioned and released a two-year, ground-breaking study by the University of Tennessee and the University of Kentucky,

Coast Guard Cutter William Trump Commissioned

The Coast Guard Cutter William Trump was commissioned during a ceremony at Coast Guard Sector Key West Saturday Jan. 24, 2015. The Trump is the 11th fast response cutter in the Coast Guard fleet.

Gypsy Moth Clause Takes Balanced Approach to Risk

A new BIMCO clause provides a simple, practical and commercial solution focusing on the basic obligations and responsibilities of owners and charterers when dealing with the Asian Gypsy Moth (AGM).

Vessels

Damen Delivers Workboat to Multraship

Towage and salvage operator Multraship has taken delivery of the first of two customized Damen Stan Launch 804s vessels for its line handling and boatmen service companies in Terneuzen,

NewLead Holdings Acquire 5 Vessels

NewLead Holdings Ltd. announced today that it recently added five bitumen tanker vessels to its fleet. The Company has expanded its fleet to 10 vessels in less

Wärtsilä Propulsion Solution for 3 Tugs

Three large new escort tugs contracted by Norwegian operator Østensjø Rederi, will feature Wärtsilä dual-fuel (DF) engines integrated with a customized gas storage

Deck Machinery

Huisman Cranes for New Maersk Subsea Support Vessels

In December 2014, Huisman secured a contract from COSCO (Dalian) Shipyard for the delivery of four customized 400mt Rope Luffing Knuckle Boom Cranes and two 100mt

MSC Sinfonia Upgradation at Fincantieri Shipyard

Extension operations on MSC Sinfonia, the second out of four MSC cruise ships to undergo the Renaissance Programme of enhancements, have begunin the past days at Fincantieri shipyard in Palermo.

Subsea Crane Takes a Long Journey

Last September the test bed in Rostock was the stage of a single lift of the RL-K 7500 subsea crane. The same crane was then loaded and shipped to the South Korean customer.

Ocean Observation

China Warns India, US on Regional Conflict

There is no need for India and the United States to have concerns on navigation and over flight over the disputed South China Sea, says China. "The situation in

Malaysia Backs Maritime Silk Road

Malaysia is ready for greater collaboration and cooperation with China with regard to Maritime Silk Road (MSR) proposal delivered by Chinese President Xi Jinping.

Turkey Signs Maritime Deal with Malta

Turkey has signed a deal with Malta to develop cooperation in the maritime field, the Turkish transportation minister Lutfi Elvan said. Turkey wants to become a marine transit country.

 
 
Maritime Contracts Maritime Security Naval Architecture Pod Propulsion Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2538 sec (4 req/sec)