5,000-HP Z-Drive Tug Delivered

Wednesday, May 12, 2004
Washburn & Doughty Associates, Inc. delivered the 5,000 hp Z-Drive Tug Independent to Marine Towing of Tampa. The 92 x 32 x 13.7-ft. tug is designed for ship handling and built to ABS Class Maltese Cross A1, Maltese Cross AMS, with notation: Towing Service and Fire Fighting Capability.

Independent admeasures 148 gt and has a Load Line based on USA flag registry and USCG rules. Bollard pull is estimated at 135,000 lbs ahead and 130,000 lbs astern. Independent is powered by High Displacement Caterpillar 3516 B main engines – rated at 2,500 bhp @ 1,600 rpm – with electronic injection. The propulsion units are Rolls-Royce 1650H Z drives equipped with 2,400 mm stainless steel propellers and Kort nozzles with stainless steel liners.

The vessel is equipped with two Caterpillar 3304 DIT marine package unit generators that provide 99KW @1,800 rpm, 208V 3 phase. One generator is normally on line while the other is on standby. In event that the on line generator fails, the switchboard and generator automatically start the standby generator, put it on line, and shut down the other generator. Fernstrum grid coolers are used to cool the main engines and fire pump engine. The Z Drives are keel cooled by a welded channel cooler and the generators are cooled by circulating jacket water in the skeg void.

Independent is outfitted with Schuyler 16-in. laminated “soft loop” bow fender capped at the top of the bulwark with a 14-in. square hollow rubber fender. Schuyler also supplied the 12-in. black rubber “D” fender on the sides and stern. The “D” fenders are secured between two 1-in. plates about 4-in. deep with 1-in. pins on 11-in. centers. The vessel is equipped with two 1,500 GPM SKUM Fire Monitors, with water and AFFF nozzles with local pick up, and an Aurora model 411 centrifugal fire pump. Power is provided by a Caterpillar 3406TA pump engine rated 440 hp @ 2,100 rpm. Deck machinery consists of a Markey model DEPC-48 electric hawser winch forward and an Almon Johnson 18-in. diameter series 351E electric capstan aft. The Siemens machinery alarm system consists of an integrated multi channel alarm system complete with sensors and local/remote alarm indicators. All components are completely modular and plug into a single dedicated backbone running fore and aft through the vessel. Navigation and communications equipment include a Furuno GP-37 DGPS; a Simrad/Robertson AP9MK3 autopilot; a Simrad HS50 satellite compass; a Standard LH5 loud hailer; a Simrad RA53-4 radar; a Furuno 1953 C/NT radar; a Furuno depth sounder; and three Icom M127 VHF radios.

Maritime Reporter March 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

Reports: Brazilian Tycoon Batista Investigated For Financial Crimes

Brazils federal police have opened an investigation into former billionaire Eike Batista for financial crimes, including insider trading, manipulation of markets and money laundering,

Shipping Turns From Banks to Equity Markets for Cash

Shipping companies are turning to equity markets to fill a growing funding gap, betting that investors hungry for decent returns will provide capital to a sector

Keel-Laid for Navy's 10th LCS at Austal Yard

The Navy and Austal USA held a keel-laying ceremony for the future 'USS Gabrielle Giffords', the Navy's 10th littoral combat ship (LCS), in Mobile, Ala., informs

 
 
Maritime Contracts Maritime Standards Navigation Offshore Oil Pipelines Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | 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: 0.1753 sec (6 req/sec)