Pacific Maritime Magazine - Marine Business for the Operations Sector

Vessel Profile: Dr. Hank Kaplan


August 1, 2017

Last winter, Harley Marine Services continued its relationship with Diversified Marine in Portland by ordering two more 80-foot ship-handling ASD tugs for delivery in 2017. The first, named the Dr. Hank Kaplan, was delivered in June. The second, the Rich Padden, is due in the third quarter. These two craft are sister ships to the pair Diversified delivered to Harley in 2015: the Michelle Sloan and Lela Franco. Their design is the "enhanced" RAmparts 2500 class from Robert Allan (RAL) naval architects of Vancouver BC. These newest tugs follow a Harley tradition of celebrating people who have contributed significantly to medical research in the Northwest.

All four craft are equipped with two Caterpillar 3516 Tier 3 propulsion engines each producing 2,575 HP at 1,600 rpm. The maximum total power output of approximately 5,150 horsepower delivers 70 short tons of bollard pull. The RAmparts class is characterized by high freeboard forward to ensure good sea-going performance in exposed waters and provide enough depth of hull for crew accommodations in the foc'sle. The beam is 36 feet with a draft of 16 feet 8 inches.

In the past, Harley has specified generators and ASD's from various manufacturers, but has made Caterpillar 3500-class diesels standard throughout its fleet. It made headlines in the maritime news media as the first US operator to debut Caterpillar's new emission technology of SCR exhaust treatment on the Tier 4 3516 "e" engines in the 120-foot Earl W Redd delivered in January by Diversified. This new pair of smaller tugs also breaks new ground as the first North American boats to specify a complete Caterpillar engine room: C7.1 gen-sets, main engine with clutch mounted on the bell housing and PTO-driven hydraulic pump, with the Cat Propulsion Marine Thruster Azimuth (MTA) completing the integrated propulsion system. This development is a result of Caterpillar's acquisition of the Swedish company Berg Propulsion AB – best known for controllable-pitch propellers. They also offered an ASD with a fixed pitch propeller or an innovative feathering BCP hub for more flexibility and efficiency, manufactured in their factories in Sweden and Singapore.

Caterpillar has packaged this with carbon shafts from Centa, plus electronic controls and computer-graphic monitoring. Based on a modular principle, most components are used in other Cat Propulsion products ensuring a proven, reliable design. Other benefits include low levels of noise and vibration as well as simplified maintenance. Michael Braun, Caterpillar Marine tug and salvage sales manager noted. "Our integrated solutions along with our Cat dealer partners enable Caterpillar Marine to offer our customers a differentiated service experience that can't be found anywhere else." Engine room equipment also includes an Alfa Laval fuel cleaner, Quincy air compressors, and a Kidde FM-200 clean agent fire suppression system.

Harley worked closely with Robert Allan to develop this latest version of the RAmparts design. Originally engineered for Cat 3500-series 1500 HP V-12 engines, it was updated with an increase in beam from 32 feet to 36 feet – giving the double-chine hull more stability to handle the greater side-thrust of Cat's V-16 3500's. The engine room layout has several innovative features from Diversified to simplify maintenance: the main engine filters are located at floor level beside the engine in a tray to contain drips; all the bilge pump valves are clustered under the ladder in a cutaway in the floor. Fuel capacity is 30,000 gallons in double-bottom tanks.

Exterior changes include a larger wheelhouse and a shallow skeg at the bow that tapers down at the stern. Draft is 14 feet, 6 inches. A Shibata large-diameter fender surrounds the bow for ship-assist work, with a full Schuyler laminated rubber pad and vertical D-rubber guards protecting the stem down to the waterline when handling barges. The topside protection is also improved by oversize construction-vehicle tires, with more laminated rubber around the stern. Free running speed is 13 knots.

Markey supplied two sets of its latest winches: the bow hawser winch is the Markey DEPC-48, a single-drum electric hawser winch with the company's Render/Recover system, high braking capacities, and fast line speeds for escort and ship-assist. It is driven by a 50 HP AC variable-frequency electric motor with encoder for continuous stall capability. It has a drum capacity of 500 feet of 9-inch Spectra type line and a rated performance of 28,000 pounds at 54 feet per minute.

The Line Tension Display in the wheelhouse displays full-time active line-tension when drum brake is set. The design also features the NexGen Automatic Power Assisted Freewheel mode that can dampen drum motion while freewheeling. By reacting automatically to the payout speed, NexGen mode allows the Captain to keep both hands, and all his attention, on the helm controls during tethered maneuvers.

The electric aft winch is the Markey model DEPC-32, a single-drum electric auxiliary deck winch with local and remote controls, for general service on escort and ship-assist vessels. It has a drum capacity of 250 feet of 6.5-inch Spectra line and a rated pull of 11,350 pounds at 50 feet per minute. It features high braking capacity and fast line speeds in a powerful, compact design. The 20-HP electric motor can handle an overload of 150 percent of rated torque without stalling, and has a total brake capacity of 214,000 pounds.

The tugs are built with the most technically and environmentally advanced equipment available and will exceed all regulatory and environmental needs and expectations, Harley notes. A closed circuit TV (CCTV) monitors the engine room so the conditions can be observed from the wheelhouse or by engineers ashore. Significant noise and vibration reduction measures have been implemented throughout the vessel, including resiliently-mounted main engines and gensets and advanced exhaust silencer systems. In addition, sound dampening treatments and insulation on decks and bulkheads has been fitted throughout the accommodation areas to improve the quality of life on board.

The increased beam results in a more spacious galley/day-room area on the main deck with comfortable seating area with flat-screen TV, laundry etc. There are two well-appointed staterooms on the main deck with private facilities for captain and mate. Beneath the high foredeck, overnight crew are housed in two cabins, each with two bunks and a center space with head and shower. Air conditioning/heating is by a pair of Daikin heat pumps located on the upper deck behind the pilothouse. The sight lines for the pilot have been improved, resulting in a full view of the foredeck. Navigation is by Furuno instruments, the helm chair is from Llebroc Industries.

Harley Franco, chairman and CEO of Harley Marine Services, announced "It gives me great pleasure to name these two tugs after our longtime board member Rich Padden and the esteemed Dr. Hank Kaplan of Swedish Cancer Institute." Padden and his wife Laurie were original co- founders of the Cystic Fibrosis Seattle Guild, which has raised over $100 million for CF research. "These two gentlemen are true champions of great causes and friends of Harley Marine Services. We are honored to name these vessels after them," Franco added.

The new 80-foot Dr. Hank Kaplan is named after Dr. Hank Kaplan of Swedish Cancer Institute, and continues the Harley Marine naming convention of celebrating people who have contributed significantly to medical research in the Northwest. Photo by Kurt Redd courtesy of Diversified Marine Industries.

The tugs will be operated by the Harley subsidiary Starlight Marine Services, which is establishing a greater presence in the competitive Puget Sound ship-assist market. The prolific Canadian office of Robert Allan Ltd. Continues to expand its portfolio and now has more than 1,000 of their ASD tugs working in ports all over the world. Diversified Marine has been building Z-drive tugs in Portland beside the South Channel of the Columbia River since 1999. "We enjoy building state of the art tugs for our regular customers like Harley Marine," said Kurt Redd.

The rapid pace of construction at this small yard would not be possible without a highly skilled team. "We are fortunate to have retained an exceptional team who can adapt to all the new technology," explained company owner and manager Redd. He has assembled a unique set of floating equipment including a re-built 130-ton capacity American 305 floating crane and a 160-foot by 65-foot, 1,200-ton floating drydock. This allows his crew to fabricate modules onshore under cover, then lower them onto the dry dock for final assembly and fitting out. To celebrate the first boat's completion on schedule, the Diversified crew polished the stainless steel stacks to a gleaming reflective finish.


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