Lugger

First Nordhavn 63 Performance Data

First Nordhavn 63, named Silver Spray -- Photo by Owner, Courtesy of PAE

First Nordhavn 63, named Silver Spray -- Photo by Owner, Courtesy of PAE

Pacific Asian Enterprises, Inc., yesterday released the first published performance data for the new Nordhavn 63.  The data are from the first hull, Silver Spray, which was just delivered to its owner at PAE’s Stuart, Florida commissioning facility.  As you can see in the accompanying photo above, taken by the yacht’s owner, the N63 truly looks like the “next-generation” N62, the aft-pilothouse trawler that was a customer and fan favorite all through its production run.  PAE has a lot riding on this yacht and it could become the right model to help bring the next generation of luxury distance-cruising boaters to the brand.  It’s large enough to accommodate truly sumptuous appointments, yet small enough to be easily handled by a couple without crew.

The First Nordhavn 63, Silver Spray -- Photo Courtesy of PAE

The First Nordhavn 63, Silver Spray -- Photo Courtesy of PAE

In the table below, you can see that the sweet spot for cruising will be a little more than 8 knots.  The fuel consumption basically doubles from 8.1 knots to 9.30 knots.  And of course, as with nearly every other hull like this, if you slow down you get better range.  Here you can see the NMPG at 7.55 knots is 1.42, which is very good performance for a yacht that displaces about 143,000 lbs.

The N63 hull incorporates an interesting design detail called a “maintenance strake.”  We wrote about it here.

You can download the complete performance data sheet here.

Here is a link to the Nordhavn 63 webpage for full specs and information.

 Nordhavn 63 Cruise Performance Data

RPM KNOTS GPH NMPG % Load
1216 7.55 5.30 1.42 41
1314 8.10 6.70 1.21 48
1597 9.30 12.70 0.73 75
1706 9.50 14.85 0.64 88
1803 9.80 17.05 0.57 100


*Performance based on average of 2 reciprocal-course runs.  Data from Nordhavn 6301, equipped with a single Lugger 1276, and a 5-bladed 42″ x 29.5″ P Hung Shen prop.

Copyright © 2011 by OceanLines LLC.  All rights reserved.

Posted by Tom in Boats, Cruising Under Power

New Northern Lights M944T 38 kW Generator is Model for Full Line Upgrades

Northern Lights M944T

Northern Lights M944T 38 kW Generator

 

Northern Lights recently announced the availability of a new high power-density 38 kW generator, the M944T.  This new generator sports features that will soon become standard on the entire 5 kW-38 kW product line.  The new features include a “revolutionary new frame design,” in which the sound enclosure shares a base frame with the generator set, creating a compact power and sound-attenuation package that reduces both noise and vibration while maximizing engine room space.  Northern Lights says the new design also allows for easy installation of an additional set of vibration mounts for an even smoother, quieter package, with only minimal increase in height.

Other convenience features on the new generator include fuel and oil drains located outside of the sound enclosure for easy connections, as well as both forward and rear exhaust exit options.  The company announced the new generator at the recent Miami International Boat Show and said avaiability for delivery would be in “spring 2009.”

The total package is 60 inches long, by 32 inches high and 29 inches wide.  It will produce 38 kW of 60 Hz power at 1,800 RPM.  Optionally, it can be configured to product 32 kW at 50 Hz, at 1,500 RPM.  At 1,800 RPM, under full load, the generator can be expected to burn about 2.8 GPH; approximately 1.5 GPH at half-load.  Dry weight of the generator is 1,499 pounds.  The M944T is based on a heavy duty Lugger 4 cylinder, vertical inline diesel, with Bosch fuel injection and liquid cooling.

You can see the M944T specis and drawings here.

“The new design of the M944T is a very important step forward for Northern Lights,” said Colin Puckett, Northern Lights manager of marketing and sales administration.  “The configureation of the base frame and sound enclosure leads to numerous benefits, including ease of installation in both new-build and re-power applications, and improved overall access in a clean, compact, powerful package.”  Puckett added that the “increasing power requirements of today’s yachts call for a power solution that can reliably power complex systems at full load, without dominating the engine room.”

Copyright © 2009 OceanLines LLC

Posted by Tom in Technology