J.M. Martinac Shipbuilding in Tacoma, WA, United States, has been building ships since 1924. The company started with fishing vessels, and over the years has built more than 300 vessels of various types. Martinac’s latest project, the Northern Leader, is the largest longliner ever built in the US and one of the largest in the world. It is also eco-friendly.
The propulsion is powered by propellers supplied by Schottel, a long-term customer of Vacon. This is the first time Z-Drives have been installed on a longliner. The two Schottel Z-Drive rudder propellers are each controlled by a 1,000 kW VACON® NXP Liquid Cooled drive, and one Schottel tunnel thruster is controlled by a 300 kW VACON NXP Air Cooled drive.
1. VACON CASE STUDY
VACON PROPELS NORTHERN LEADER
VACON PROPELS NORTHERN LEADER
Photo courtesy of J.M. Martinac
CLIENT NAME: J.M. Martinac Shipbuilding
SEGMENT: Marine & Offshore
PRODUCTS USED: VACON® NXP Air Cooled,
VACON® NXP Liquid Cooled
LOCATION: Tacoma, WA, USA
1
www.vacon.com
2. VACON CASE STUDY
VACON PROPELS NORTHERN LEADER
KEY FACTS OF CLIENT:
• J.M. Martinac Shipbuilding in Tacoma, WA, has been building
ships since 1924. The company has built over 300 vessels of
various types.
• It specializes in the design and construction of vessels up to
76 metres long.
• Jensen Maritime is a Seattle-based Crowley company which
has provided full-service naval architecture solutions for over
50 years.
2
www.vacon.com
3. VACON CASE STUDY
VACON PROPELS NORTHERN LEADER
CHALLENGE:
• J.M. Martinac’s latest project is the construction of the
Northern Leader for Alaskan Leader Fisheries.
• At 56 metres and weighing 1600 tons, it is the largest
longliner ever built in the US, and one of the most ecofriendly commercial fishing vessels to be constructed.
• The ship is designed by Jensen Maritime to cause minimal
impact on the ocean’s ecosystem, with the lightest possible
fossil fuel footprint.
3
www.vacon.com
4. VACON CASE STUDY
VACON PROPELS NORTHERN LEADER
SOLUTION:
• Propulsion uses two propellers supplied by
Schottel, each powered by a 1 MW VACON®
NXP Liquid Cooled drive, and a Schottel tunnel
thruster propelled by a 300 kW VACON® NXP
Air Cooled drive.
• Drives selected are regenerative active
front-end units suitable for applications where
low mains harmonics are required.
• Northern Leader, a state-of-the-art fishing
boat, was christened in Seattle, WA, USA,
on July 31, 2013.
4
www.vacon.com
5. VACON CASE STUDY
VACON PROPELS NORTHERN LEADER
TESTIMONIAL:
“VACON® NXP drives with active front-end (AFE) technology were
chosen for their optimal performance, compact footprint and ability
to minimise harmonic distortion to vessel systems. Combined with
the Schottel Z-Drives for enhanced control of the ship, they give the
captain virtually seamless power on tap when needed.”
Joe Martinac
President of JM Martinac Shipbuilding
FOR FULL STORY:
http://www.vacon.com/Vacon/media/References/Vacon-propels-Northern-Leader-/
5
www.vacon.com