Case Studies

Category: marine

Logan Front of Engine PTO Clutches and Scania Engines provide on-demand hydraulic power for the Sailing Yacht Hetairos

Logan Front of Engine PTO Clutches and Scania Engines provide on demand hydraulic power for the Sailing Yacht Hetairos

Posted By Andrew Logan
November 23, 2021 Category: Marine

Logan SPF 1000 Series Front of Engine Power Take-off (PTO) clutches supply on-demand connect/disconnect power to the hydraulic systems that run the deck winches and sailing equipment on the sailing yacht Hetairos   The Challenge The sailing yacht Hetairos is a 67m / 220ft carbon ketch built by Baltic Yachts and Dykstra & Partners naval architects. Originally launched in 2011, the vessel was overhauled in 2015. Built with a desire for both long distance cruising and competitive sailing, the design needed to balance power and weight. When Hetairos was completed in 2011, it was powered by 4 Volkswagen Engines, each contributing in some way to the hydraulics for propulsion via thrusters, hydraulics for deck and sailing equipment, and electrical generation. The control system for this arrangement was unable to reliably provide consistent power, leading to a number of blackouts and breakdowns. The Solution In 2015, Hetairos was refitted with 2 dedicated electric generators--one 75 kW exclusively for electricity and another 90 kW for electricity and some hydraulics. In addition, twin Scania 405 engines are now used to directly drive the thrusters. Most of the vessel’s hydraulics are powered off the front of the Scania 405’s with Hawe Hydraulik V30E pumps supplied with on-demand power via Logan SPF 1000 Series PTO clutches. The Logan SPF 1000 Series clutches are mounted to the front of the Scania 405 engines via Logan Front Mount Kits. A Logan Manifold with S

Logan Front of Engine Power Take-off Clutches and John Deere Gensets provide on-demand power for the tugboat North Arm Tempest

Logan Front of Engine Power Take off Clutches and John Deere Gensets provide on demand power for the tugboat North Arm Tempest

Posted By Andrew Logan
November 23, 2021 Category: Marine

Logan 600 Series Front of Engine Power Take-off (PTO) clutches supply on demand connect/disconnect power from John Deere 4045 engines to Kawasaki hydraulic pumps which run deck winches for towing/shiphandling   On-demand power The 64’9” (19.7m), 2000 hp (1491kW) North Arm Tempest built by North Vancouver-based ABD Boats is North Arm Transportation’s most powerful tug yet. Twin Cummins KTA-38 main engines provide propulsion through VZ-900 azimuthing drives from Veth Propulsion, a Twin Disc brand. These drives allow for free-running speeds of about 10.5 knots and towing speeds of about 8 knots. Auxiliary power is provided by twin John Deere 4045TFM85 74kW gensets supplied by Frontier Power of Delta, BC. Two SPF-600 series Logan Front of Engine Power Take-off (PTO) clutches provide on-demand connect/disconnect power from the front of John Deere 4045TFM85 engines to Kawasaki pumps that power the hydraulic systems. The winches running off this hydraulic system were built by Burrard Iron Works. Lower fuel consumption and emissions, less wear and tear, and easier maintenance Logan SPF-600 series clutches are actuated either pneumatically or hydraulically, transmitting up to 985 lb. ft. of torque. Logan Front Mount Brackets support the clutches. The clutches provide reliable power to the hydraulic system so that the North Arm Tempest can meet the demands of towing barges on the coast of British Columbia, including between Centerm in Vancouver and Duke Point

Logan Power Take Off Clutches for San Francisco Fireboats

Logan Power Take Off Clutches for San Francisco Fireboats

Posted By Chris Wrenn
November 12, 2021 Category: Marine, Fire Fighting

The San Francisco Fire Department’s Fireboat No. 3 / the St. Francis, is 88 ft. long and has a beam of 25 ft., and with an 18,000-gallon-per-minute pumping capacity - is easily the largest municipal firefighting boat on the West Coast - using 3 Logan LC318 bell housing PTO clutches. While the St. Francis acts as any other fireboat in the port of San Francisco, its main function is to act as a mobile pumping station for city water, with the ability to plug into the city’s water system should a major earthquake cause a disruption of the system. At 18,000 gallons per minute, the St. Francis has enough power to pressurize the cities fire hydrants in the event they are dismantled during an earthquake. “The pumps run off the rear of the engines, and the propellers run off the front of the engine”, says Andrew Logan, President and CEO of Logan Clutch Corporation. This is not your typical application – and at 18,000 gallons per minute, this is not your typical fireboat”, says Logan. “Cummins and Logan worked closely together on this project to ensure we had more than enough power to make the St. Francis a key workhorse in any situation”. More recently, the St. Francis Fireboat No. 3 was instrumental in saving the Jeremiah O’Brien, a WWII Liberty Ship during a 4 alarm fire on San Francisco’s Pier 45 over the Memorial Day Weekend. PROJECT DETAILS: Designed by Jensen Maritime Consultants and Built at Vigor’s Seattl

Logan Bell Housing PTO Clutches for Amsterdam fire-fighting vessel

Logan Bell Housing PTO Clutches for Amsterdam fire fighting vessel

Posted By Andrew Logan
October 21, 2021 Category: Marine, Fire Fighting

Damen Shipyards has turned to Logan Clutch to provide connect-disconnect power from twin Volvo D13-500 diesel engines to engage fire-fighting pumps on the City of Amsterdam’s Jan van der Heyde IV

Logan Front of Engine PTO Clutches for Cummins QSB 6.7L Engines-Fire Fighting Boats

Logan Front of Engine PTO Clutches for Cummins QSB 6.7L  Engines Fire Fighting Boats

Posted By Andrew Logan
October 14, 2021 Category: Marine, Fire Fighting

Moose Boats, a boat designer and manufacturer in the San Francisco Bay Area, delivered one of its popular M2-38 Fire Rescue Catamarans to the City of Rochester, New York Fire Department (RFD). This is the first M2-38 Fire Rescue Catamaran to be delivered to Lake Ontario, in the Great Lakes

Dynamic positioning thruster systems switch from electromagnetic clutches to Logan air actuated PTO Clutches

Dynamic positioning thruster systems switch from electromagnetic clutches to Logan air actuated PTO Clutches

Posted By Andrew Logan
October 14, 2021 Category: Marine

Fast supply vessels are an important part of the supply chain for any type of Wind Farm or Offshore Drilling operation, and each vessel is required to have Dynamic Positioning (DP) capabilities to control its position relative to a specific position, drill rig, wind turbine tower or other support vessel.  Dynamic positioning (DP) is a computer-controlled system to automatically maintain a vessel’s position and heading by using its own propellers and thrusters. Thrustmaster of Texas Inc. is a major supplier of DP thruster systems to builders of DP vessels.  Larger and faster supply vessels (upwards of 200 ft. with speeds over 25 knots) require larger DP systems. One Thrustmaster system, the 250 Horsepower Thrustmaster 30TT250AL, uses a hydraulic motor powered by a large hydraulic axial piston pump (180 cc per revolution). Sandwiched between the hydraulic motor and Durst gearbox is a Logan 1200 Series, air actuated, Direct Drive PTO Clutch to provide on-demand engagement-disengagement to the thruster. The Durst gear box is driven by the vessel’s generator sets.  Logan Clutches lower fuel costs, lower emissions and reduce wear and tear on components The Logan PTO clutch enables the system to be disconnected when the DP thruster is not required, which results in lower fuel costs, noise, and wear and tear on the hydraulic motor and hydraulic system. Engaging the hydraulic system as required with the Logan PTO clutch also lowers the overall operating

Alaska Fisherman uses Logan Direct Drive PTO Clutch on his New Fishing Vessel

Alaska Fisherman uses Logan Direct Drive PTO Clutch on his New Fishing Vessel

Posted By Jana Vanadia
September 26, 2021 Category: Marine

Frank White has been fishing for salmon and shrimp in Alaska for over 20 years. His boat, the 39 ft. Point Break, uses gillnets and pots powered off the rear of the engine, and refrigeration and bow thrusters powered off the front of the

Logan Clutches for Schottel SRP 1515 / SRP 460 Series Z-Drives

Logan Clutches for Schottel SRP 1515 / SRP 460 Series Z Drives

Posted By Ed Gallucci
September 17, 2020 Category: Clutch For Schottel SRP, Clutch For Schottel SRP1515, Clutch For Schottel Z Drive, Logan Clutch For Schottel SRP, Logan Clutch For Schottel SRP1515, Logan Clutch For Schottel Z Drive, Marine

Clutches for Schottel SRP 1515 Z-Drives. The new assembly, a Logan NSC-1450-001, is a multiple disc dry clutch assembly that will be married to a Schottel SRP 1515 azimuthing Z-drive with four-blade, 104-in diameter stainless-steel propeller driven by a 2

Great Lakes Towing Fleet Updated With Eco-Friendly Tugs

Great Lakes Towing Fleet Updated  With Eco Friendly Tugs

Posted By Andrew Logan
November 20, 2018 Category: Marine

The Great Lakes Towing Company and Logan Clutch Corporation officially signed a contract at ITS 2018 Marseille.

Logan Direct Drive PTO Clutches Enhance Bow Thruster

Logan Direct Drive PTO Clutches Enhance Bow Thruster

Posted By Andrew Logan
April 13, 2018 Category: Direct PTO, Marine

Steering a commercial boat or large yacht can be similar to driving a heavy car with bad brakes. It's difficult to stop, and response to the rudder is slow. This is where a bow thruster comes

Jet Boat Fishing in Bristol Bay Alaska

Jet Boat Fishing in Bristol Bay Alaska

Posted By Andrew Logan
January 16, 2018 Category: General, Marine

Controlling the Jet Boat and nets in neutral position can be a problem since the boat tends to circle. It would be easy to snag a line or another fisherman’s net. Steve began looking for solutions to see what could be

Logan PTO and CAT Genset

Logan PTO and CAT Genset

Posted By Logan Clutch
January 16, 2018 Category: General, Marine

A major harbor tug operator in the US had a need to up-grade some of it’s old Detroit Diesel driven Gensets. This operator has the hydraulic requirements for the boat and deck winches provided by two hydraulic pumps mounted on the front of two redundant Gensets.

Logan Power Take-off Clutches for Industrial and Marine Gearboxes

Logan Power Take off Clutches for Industrial and Marine Gearboxes

Posted By Andrew Logan
October 11, 2016 Category: Power Take Off Clutches For Industrial And Marine Gearboxes, Marine

Logan Power Take-off Clutches for Industrial and Marine Gearboxes. Logan direct drive PTO’s are effective and reliable solutions for applications where hydraulic pumps are used in on-demand or intermittent situations. This Lufkin gearbox with live

Pipe Laying Barge Company chooses Logan for Mooring and Anchoring Winches

Pipe Laying Barge Company chooses  Logan for Mooring and Anchoring Winches

Posted By Rennie Lee
October 04, 2016 Category: General, Marine

Pipe Laying Barge Company chooses Logan for Mooring and Anchoring Winches. With the use of Logan CH Clutch, the Winch has a better safety feature – since the Winch can be engaged and disengaged at any position and speed during normal operations or i

Oliver Hazard Perry sets sail with Logan Front of Engine PTOs

Oliver Hazard Perry sets sail with Logan Front of Engine PTOs

Posted By Ed Gallucci
March 23, 2016 Category: Marine, Case Studies

Oliver Hazard Perry sets sail with Logan Front of Engine PTOs. Adding Logan Front of Engine Power Take-off (PTO) Clutches to the SSV Oliver Hazard Perry increases maneuverability, efficiency and

PTO Produces Pressure Under Pressure

PTO Produces Pressure Under Pressure

Posted By Ed Gallucci
May 20, 2014 Category: Fire Fighting, PTO Clutch, Marine, Case Studies

Moose Boats relies on Cummins and Logan Clutch system for full maneuvering from both engines while pumping at full pressure and flow. Logan increased flow

Flywheel Mounted Logan PTO Replaces Mechanical on Tug

Flywheel Mounted Logan PTO Replaces Mechanical on Tug

Posted By Ed Gallucci
May 20, 2014 Category: PTO Clutch, Marine, Case Studies

The Island Scout Tug boat replaces mechanical clutch with Logan hydraulic PTO clutch mounted to the flywheel of a CAT engine. Logan direct drive is more

CH Clutches Power Lufkin Marine Gears for ATB

CH Clutches Power Lufkin Marine Gears for ATB

Posted By Ed Gallucci
May 20, 2014 Category: CH Clutch, Case Studies, Marine

Reinauer Transportation Companies uses Logan CH Clutches with the Lufkin Marine Gears on the ATB Ruth M Reinauer. The clutches require less maintenance and

Foss Hybrid Tug Project Campbell Foss

Foss Hybrid Tug Project Campbell Foss

Posted By Ed Gallucci
July 18, 2012 Category: Marine, Hybrid, Bell Housing Clutch, CH Clutch, Main Propulsion, Case Studies

Logan Clutch is proud to have been involved with the conversion of the Dolphin Class tug Campbell Foss into the second Hybrid Tug in the world. Read more about

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