The tug A.N. Tillett has undergone a major re-power and re-fit! The re-power of the A.N. Tillett with Mitsubishi engines makes for the second Mitsubishi powered vessel in our fleet with two additional coastal tugs that are also being re-powered.
The A.N. Tillett was last re-powered in 2007 during a major refit including a pair of Tier 2, 1100 hp Cat engines, Rice nozzle/triple rudder system, new generators, and other improvements. A.N. Tillett was then named after Anthony "Tony" Tillett, a beloved World War Two Veteran, Scottish Immigrant and famed Marine Surveyor, who left a legacy of decency, kindness and quiet competency and expertise.
Our 2020 re-power used two new EPA certified, Tier 3 Mitsubishi S12R-Y3MPTAW-4, 1100 hp heavy duty marine propulsion engines. Pacific Tugboat Service selected the Mitsubishi engines because they provided similar horsepower and engine speed, allowing us to utilize existing shafts and propellers. The extra torque in the new 49-liter displacement Mitsubishi engines also allowed for less stress on the engines. The simple mechanical engine controls were exchanged for the more complex electronic controls and will allow for easy maintenance and operation.
We chose Hatton Marine, headquartered in Seattle, Washington, in conjunction with their San Diego dealer Dee Finley Diesel Repair to supply the Mitsubishi engines and provide technical assistance to PTS during the repower.
PTS Port Engineer Peter Walding and Port Capt Tom Ebner led our inhouse construction team to simultaneously perform extensive upgrades and maintenance to the vessel during the re-power, including; new expansion tanks, build new stacks, new steering pump system, new HPO unit for upgraded hydraulic system, two new Kohler 99E0ZCJ 100 kw gen sets, re-wire complete vessel, re-design hydraulic piping, installed new gear reduction units, rebuild and replace exhaust system on generators and main engines, re-design air system in engine room, new centrifuge fuel cleaning system, upgrade electronics suite, remodel galley, crew lounge area, heads, and wheel house, replace second 500 gallon holding tank and sewage system, upgrade A/C system, design/build all new stainless mast and DC nav light system, fit new deck lights and work lights and paint entire vessel.
US Coast Guard Sub Chapter M certification was also obtained at completion of the repower/refit.
The A.N. Tillett is now in full-service performing better than ever thanks to Mitsubishi, Hatton Marine, Dee Finley Diesel Repair and the Pacific Tugboat Service Team.
For more information on Mitsubishi Heavy Duty Marine Engines, from 429 hp to 1676 hp, contact Hatton Marine, 4735 Shilshole Ave NW, Seattle Washington, phone (206) 283-5501 Email: email@example.com