Introducing cleaner, more efficient tugs for the future

[B][I]Crowley and Bay Ship and Yacht Co. complete
[/I][/B][LEFT][B][I][CENTER][B][I]Crowley’s first [/I][/B][B][I]$1 million tug engine replacement as part of the [/I][/B][B][I]
Port of Los Angeles clean air quality initiative[/I][/B]

(LOS ANGELES, Calif; Oct. 30, 2009) The air is a little cleaner at the Port of Los Angeles these days. Just this month, the new and improved Crowley harbor class tug Leader re-entered the ship assist and escort fleet of vessels following an extensive repowering of the vessel’s main engines and generators.

The repower project, the first of four Crowley tug engine replacements, will help reduce emissions and lessen overall environmental impact and is part of a larger Port of Los Angeles emissions and air quality initiative requiring vessel operators to upgrade their engines to be Tier II emissions compliant by 2013. The repower will reduce particulate matter emissions by 3.24 tons and mono-nitrogen oxides by 109.52 tons per year for all four tugs combined.

Repowering each tug costs Crowley more than $1 million and is largely being funded with a portion of a $4 million Port of Los Angeles Air Quality Mitigation Incentive Program air quality improvement grant. This project also benefits the neighboring Port of Long Beach, which has environmental goals and clean air quality initiatives that are closely aligned with those of the Port of Los Angeles.

“The Port of Los Angeles is proud to work with Crowley and help provide funding for this important initiative,” said Port of Los Angeles Executive Director Geraldine Knatz, Ph.D. “We are thrilled to see the first repowered Crowley tug operational here at the Port. It is this kind of partnership between public agencies and private business that is helping us meet our clean air action plan goals.”

Crowley partnered with Bay Ship and Yacht Co. to handle the engine repower project for the tugs Leader, Admiral, Scout and Master. The Leader was completed earlier this month and the company expects to re-introduce the fourth repowered vessel to the service in early 2010.

“We are delighted to partner with the Port of Los Angeles in introducing lower emissions vessels and cannot stress enough how their commitment and generous financial support made this project possible,” said Frosty Leonard, manager of marine operations for Crowley in California. “This engine repower project not only reduces emissions and improves air quality significantly, it also offers our customers more effective, efficient and environmentally sound service today instead of waiting until 2013.”

Crowley chose to replace the vessels’ CAT 3516 main engines with CAT 3512 engines, and the CAT 3304 auxiliary engines with the new CAT model C4.4 generators, more than three years before the mandated compliance date. As an added bonus the engines - although four cylinders smaller in size - have increased bollard pull for the vessel from 51 tons to 59 tons, further enhancing the vessel’s effectiveness.

Bay Ship and Yacht performed the repowering and routine vessel maintenance, including the complete rebuild of both of the tug’s Voith propulsion units. The entire drive unit repower and rebuild was completed in only 28 days, helping to return the vessel to active duty in record time.

“Bay Ship & Yacht took on this project because we knew we could perform for Crowley,” said Alan Cameron, co-owner of Bay Ship & Yacht.

Bay Ship Project Manager David Ashton also expressed satisfaction in being able to deliver for Crowley and the Port in just 28 days.

“Bay Ship is extremely pleased to be an integral part of keeping Crowley’s vessels working with minimal delays, while helping the Port of Los Angeles reduce emissions and improve the environment in which the vessels work,” Ashton said. “Completing all this work took a tremendous amount of planning and coordination of all trades, including a tremendous amount of cooperation with Crowley. Bay Ship’s abilities and the technical expertise of all the technical advisors, along with the complete cooperation of the senior management of Bay Ship helped to bring this project to fruition and allowed for project success. We now look forward to repowering the rest of the Los Angeles fleet, allowing the citizens of Los Angeles to breathe easier.”

Bay Ship & Yacht Co. is an Alameda, Calif. based company offering complete drydocking and pierside service for Commercial vessels and Superyachts worldwide. Services include complete ship repair, repowering, hull and house maintenance, machine shop and steel fabrication; propeller maintenance; painting and sandblasting. Bay Ship operates a 2800 Ton Drydock and 1200 Ton Synchrolift with several on-land berthing spots. Bay Ship also offers budgeting, scheduled maintenance and emergency repairs of all types of vessels where superior service, technical expertise, and a dedication to absolute customer satisfaction helps ensure that owners receive their equipment back in an expedient manner to allow them to service their customers. For more information, visit

The Port of Los Angeles is America’s premier port and has a strong commitment to developing innovative strategic and sustainable operations that benefit the economy as well as the quality of life for the region and the nation it serves. As the leading seaport in North America in terms of shipping container volume and cargo value, the Port generates 919,000 regional jobs and $39.1 billion in annual wages and tax revenues. A proprietary department of the City of Los Angeles, the Port is self-supporting and does not receive taxpayer dollars. For more information, visit

Jacksonville-based Crowley Holdings Inc., a holding company of the 117-year-old Crowley Maritime Corporation, is a privately held family and employee-owned company. The company provides diversified transportation and logistics services in domestic and international markets by means of six operating lines of business: Puerto Rico/Caribbean Liner Services, Latin America Liner Services, Logistics Services, Petroleum Services, Marine Services and Technical Services. Offered within these operating lines of business are the following services: liner container shipping, logistics, contract towing and transportation; ship assist and escort; energy support; salvage and emergency response through its TITAN Salvage subsidiary; vessel management; vessel construction and naval architecture through its Jensen Maritime subsidiary; government services, and petroleum and chemical transportation, distribution and sales. Additional information about Crowley, its subsidiaries and business units may be found on the Internet at

I was reading through this thread, wondering if I was going to find the place where ir said Crowley switched to MTU Motors. They must have done their homework and stuck with the Cats. I’m kind of surprised that they went from the the 3516’s to the 3512’s. I would have thought that they would have gone the other way.

It makes sense to build new tugs as clean and green as is practical — within reason. But this tug air quality nonsense in California is a load of bull. It makes no sense at all to repower old tugs to make them cleaner. Tugs do not account for one millionth of one percent of air pollution in LA. If Crowley wanted cleaner tugs in LA to make the Hollywood Greenies happy, they should have just built new tugs for LA, and then have sent the old tugs to somewhere real.

If they was serious about clean air they should have build something like this:

[QUOTE=Kraken;140304]If they was serious about clean air they should have build something like this:[/QUOTE]

Thats a nice boat. We are supposed to be running a huge surplus of methane gas in this country. Only real downside is the ever present problem of a gas leak in the engine room. They should have tapered the skeg of forward to follow the lines of the bow stem. Thats going to be a problem working on the stem of a ship, or underwater protrusions around docks.

[QUOTE=dmc;141156]Only real downside is the ever present problem of a gas leak in the engine room.[/QUOTE]

I think the risk is quite small if precautions such as double-walled piping with gas detectors are used. Also, since the gas is typically lighter than air, proper ventilation will ensure that it won’t hang aroung in enclosed spaces in case of a leak. Finally, isn’t the concentration range within which methane or natural gas burns or explodes when mixed with air rather limited?

At least you can’t burst a fuel line and spray oil on the hot engine if you’re using gas…

the new 12’s have the same power as the old mechanical 3516’s