WorkBoat, a print publication and online source for information of concern to commercial boating professionals, has published a list of the 10 most significant boats of 2019. Three of the boats on the list have Caterpillar engines, and these three offer a good illustration of the range of what the phrase “work boat” can mean: it means a new tractor tug for use on the Mississippi, an aluminum pilot boat recently delivered to the Brazos Pilots Association in Freeport for use on the Gulf Coast, and a passenger vessel designed for New England’s whale watches.
The Purpose of Andrew S
The Andrew S is slated to be christened by its owner, Bisso Towboat, on December 5 after an appearance at the WorkBoat show in New Orleans earlier that day. It will have the most horsepower (6008 hp) ever afloat on the Mississippi, and will be the river’s first Tier 4 and with tractor tug.
The challenge faced by the team that created the Andrew S was to work within the 98’ hull of this vessel’s precursors, (which is an ideal size for docking and undocking on the Mississippi) and to comply with Tier 4 Final and the Coast Guard’s subchapter M requirements, all while increasing the bollard pull from 60 to 75 tons.
The team accomplished this in part through the use of a Cat 3516E engine. After visiting the Caden Foss, in San Francisco and viewing the 3516E engine aboard, they were intrigued with the solution for their new vessel.
In the words of Captain Jonathan Davis of Bisso, “When [he] saw the tug [Caden Foss] working and operating from clutch to full ahead with no smoke,” he was sold.
Customized By and For the Operators
A distinct challenge was that faced by Metal Shark, the Jeanerette, Louisiana based designer, when it designed, built, and delivered a new pilot boat to the Brazos Pilots Association, in Freeport, Texas, which has customized the boat to satisfy the pilots, for such challenges as facilitating operating in close quarters.
The design includes such features as a secondary control station on the aft deck, which has steering and throttle controls as well as a set of digital displays. The displays will allow the operator to monitor engine performance while controlling the vessel from the control station.
In the course of this customization, Metal Shark settled upon the use of the Cat C18 engine.
Finally, this list of the most important boats includes the Dolphin XI, built by Gulf Craft LLC, of Franklin, Louisiana, for the Dolphin Fleet Whale Watch, of Provincetown, Massachusetts.
The Dolphin XI measures 114’ from stem to stern and is designed to carry 360 passengers on the search for whales.
This boat, with a draft of 5’, is powered by three Cat C32 EPA Tier 4 engines that are connected to Michigan Wheel propellers. This propulsion system yields a running speed of 30 knots at 2,100 rpm. Two C4.4 generator sets provide additional power, each producing 75 kW.