John Deere Power Systems

First Photos: The New Kadey-Krogen 52′ Has Arrived

The first Kadey-Krogen 52' shown running at no-wake speed after arrival in Seattle

The first Kadey-Krogen 52' shown running at no-wake speed after arrival in Seattle

The first Kadey-Krogen 52′ arrived in the U.S. in time for the recent Seattle Boat Show and made her public debut there. The timing was so tight that the Kadey-Krogen team hadn’t had a chance to really begin the commissioning process, so in many of these photos you will see a fairly bare interior. I happen to like seeing it like this since I can use my imagination to decorate and outfit to my own taste.

Some things to notice:

  • The fabulous galley, including the Viking range and oven. I need to invite my superyacht chef friend Victoria Allman to come and play in this lovely workspace.
  • The office space below decks, which, in this two-stateroom configuration, really opens up the lower area with a functional, flexible area for work, navigation planning, and normal household management chores.
  • The expansive helm/dash setup. There’s room here for multiple big-screen displays so you can take advantage of all the latest technology, including monitoring, networked navigation and other sensors, and provide redundancy and flexibility. There is also plenty of room for two helm chairs; a feature I really like for longer passages.
  • The engine room has lots of space in which to work, especially with the standard single John Deere 6068AFM75, a continuous duty 231hp engine. Plenty of lighting and sturdy grab rails make those regular engine room checks underway more comfortable and safer.

Check out the photos in the gallery below.

Copyright © 2011 by OceanLines LLC.  All rights reserved.

Posted by Tom in Boats, Cruising Under Power
Video Debut: The Underway Series from OceanLines, Episode 1

Video Debut: The Underway Series from OceanLines, Episode 1

By way of introducing this new video series, let me re-state what will become obvious to you:  I am a writer. And writers may have great ideas for video but viewers will likely suffer a bit while the writer learns to be a filmmaker. And with that ugly excuse for the quality of our first effort here, let me introduce “The Underway Series” from OceanLines, which will document some of the routines of living and cruising offshore on a trawler or sailing vessel.  This first episode covers the “Periodic Engine Room Check” which all offshore cruisers should be doing, power or sail.

OceanLines Video - "The Underway Engine Room Check"

OceanLines Video - "The Underway Engine Room Check"

The philosophy behind an hourly, or every-two-hours engine-room check is that most big problems start out as small ones. And if they’re picked up early, many if not most, can be taken care of quickly and easily. Whether it’s a problem of the liquid outside the boat coming in — as in a leaking thru-hull or shaft seal; or one of the internal fluids — like oil, fuel or hydraulic fluid — leaking out of a component and into the boat, noticing it right away is key to offshore safety.

In the engine room, then, you will mainly be looking for leaks of the kinds just mentioned.  And as Gregg Gandy, project manager for Kadey-Krogen Yachts, and longtime yacht captain, demonstrates, a ritualized inspection will ensure you don’t miss anything.

This video was filmed during an offshore delivery of a new Krogen 58′ while more than 100 nm off the east coast of the U.S. Because our boat was brand new, with just enough time on the boat to be “broken in,” Captain Gandy was comfortable with a two-hour interval for the check. Some captains check every hour and a few go longer. I would say one or two hours is probably the right interval. Many owners these days will put a thermal imaging or even plain visible light camera in the engine room, fed to one of the helm displays.

You might consider creating and using a checklist at first. As pilots know, checklists are great for ensuring that distracting conditions don’t cause you to miss something critical. Another key, and you can see it in this video, is doing the inspection the same way every time.  Gregg likes to go to the far aft end of the engine room and work his way forward.

You can see him checking the running generator (we had two aboard the Krogen 58′) for leaks, vibration, loose belts or unusual noises. He then moves to the shafts, seals and transmissions, looking for proper cooling of the shafts, smooth, vibration-free turning of the shafts, no unexpected noise or vibration or movement from the transmissions.

While we may not have been able to get good voice quality in the engine room (remember to wear hearing protection, by the way), we will do so in future segments. Let us know in the comments what else you’d like to see.  I promise that we’ll keep them short and as interesting as possible.

Special thanks, by the way, to the folks at Kadey-Krogen Yachts — Larry Polster, Gregg Gandy and Greg Kaufman — who made this trip, and this video possible.

Copyright © 2010 by OceanLines LLC.  All rights reserved.

Posted by Tom in Boats, Construction & Technical, Cruising Under Power, Cruising Under Sail, Engines, Maintenance & DIY, Passagemaking News, Powerboats, Sailboats, seamanship, Technology
Krogen 58′ Northbound:  Part 3

Krogen 58′ Northbound: Part 3

The magic of sunset at sea while aboard a trawler. . .

The magic of sunset at sea while aboard a trawler. . .

One of my favorite things about being at sea is “The Big Sky.” No, not the state of Montana or the great 1952 lubberly movie with Kirk Douglas — THIS big sky over me. Growing up in the hilly country of New England, the celestial vault never took up much more than half of the view above the horizon. Here, far off the coast of Georgia, a fairly calm sea permits a 180-degree perspective on the heavens. The sights and sounds of this big sky, both during the day and at night are highlights of a trip offshore.

A view of our position courtesy of Fugawi Marine ENC running NOAA ENC charts. Note the speed.

A view of our position courtesy of Fugawi Marine ENC running NOAA ENC charts. Note the speed.

Gregg and Greg are both standing at the helm, examining the chartplotting laptop as dawn arrives on our second day at sea. It’s still mostly dark, but a faint tangerine swath on the eastern horizon suggests where the sun will rise. As Greg Kaufman takes his watch, we agree things are running smoothly. Our speed over the ground (SOG) has risen to well over 10 knots, as the wind and swell have veered into the southeast, and the ride has smoothed dramatically. The engines are still only burning about 6.3 gallons per hour, combined, and the faint hum we hear from them in the pilothouse is accompanied by the sounds of the rushing water along the hull; a rhythm that shifts quietly and constantly with the set of the waves and wind. 

The tangerine deepens at its heart and bleeds a rose stain farther along the horizon and up into the sky and then, abruptly, the orb of the sun rises from the sea. It happens quickly, and the drowsy pilothouse is suddenly flooded in warm, yellow sun. Gregg has been drinking coffee on his 2-6 watch, but a fresh pot brewing in the galley awakens my breakfast appetite and soon enough I’ve got a bowl of cereal and some fruit in hand. The ride is so smooth now I fling caution to the wind and climb the steps back up into the pilothouse without “keeping one hand for myself and one for the boat.” Apparently, Poseidon was still asleep, because I make it to the settee in the pilothouse without spilling anything. 

Kadey-Krogen's Greg Kaufman has the sunrise watch.

Kadey-Krogen's Greg Kaufman has the sunrise watch.

After breakfast, we check the decks for flying fish who had one-way tickets. There are none today, which is a little surprising, given that we could see and hear them during the night, occasionally running into the hull. It’s probably just as well that we didn’t find any; flying fish sushi at this hour seems less than appealing. Gregg uses the freshwater washdown on the foredeck to rinse the Portuguese bridge and pilothouse windows of their salt crust from yesterday’s bash. I’m taking some time to wander around the yacht, taking pictures and making notes for a more detailed article about the Krogen 58′, which I’ll write up when I get home. 

The wind continues to veer and by midday is mostly from the southwest. We’re also in the core of the Gulf Stream and our SOG has risen above 12 knots — quite a fantastic speed for a trawler running at an economical cruise setting of 1,850 rpm.  Gregg managed to download the latest GRIB files before we were over the horizon, so we spend some time in the morning looking at the forecasted winds overlaid on the chartplotting software on his Mac laptop. It looks like a good day, with the winds behind us, at least until sometime early tomorrow morning. 

While today’s cruisers do not HAVE to be completely disconnected from the rest of the world, with Internet phone, TV and data services available by satellite, we don’t have any of those resources so my cell phone is silent and my laptop is without any connections. My brain eventually also catches up to this reality and it’s then that I really begin to notice little details — like how I can see the differencein direction of the wind waves and ocean swells. I look more closely at the old radar set we have and I realize I can see that difference in the “sea clutter” returns on the screen, too. That will be handy at night when I can’t see the waves visually. 

There’s more life out here than first meets the eye, too.  We’re regularly visited by bottlenose dolphins; big, gray athletes running across our course who suddenly change course to check out our pitiful bow wave and then, unimpressed, move on. There are large patches of Sargassum seaweed; orphans snatched from the great Sargasso Sea by eddies of the Gulf Stream — each a haven for entire food chains floating underneath them in the water column. 

Audubon's Shearwater. Photo by Flickr user "Jforb"

Audubon's Shearwater. Photo by Flickr user "Jforb"

What looks like an Audubon’s Shearwater swings lazily by, evidently concluding we are not edible and then darting off to check out a suspicious surface swirl off our port beam. These birds periodically pass us and I wonder how they manage so far from land. The Gulf Stream this time of year is beginning to fill with the pelagic birds as they begin northward migrations. North Carolina, incidentally, is a great place to take some offshore pelagic bird trips. Check out this website of Brian Patteson’s

Traffic is pretty light and we seem to have the sea to ourselves for the day. The southwest winds persist and we make great time, racing along in the middle of the Gulf Stream.  It’s clear from the forecast and our progress that it’s going to be a race to the North Carolina coast for us. Our hope is to get as close as possible to North Carolina before the wind quickly shifts to the northeast, courtesy of a fast-moving cold front coming from the mid-west. By day’s end, we’re fairly certain there will be more head-bashing before we get where we’re going. 

Atlantic Ocean Sunset From a Trawler

Atlantic Ocean Sunset From a Trawler

After an early sailor’s dinner, Gregg heads below to get some sleep. The other Greg and I enjoy a spectacular sunset. The wind has picked up but it’s still calm enough for me to wander around the side decks experimenting with my camera. There are enough clouds around that the sunset has some canvas to paint on and it gets better and better as each moment passes. And then, as suddenly as it rose 13 or so hours earlier, the sun sets and a gray haze mutes the colors. 

Our ship sails steadily northward through the descending night. The pilothouse is darkened; all the lights and screens dimmed as far as possible to preserve night vision. I periodically step out onto the sidedeck to look at the stars. Low in the west, Orion poses majestically in full hunter glory. The dark skies of the moonless night pull the stars into three-dimensional relief and the constellations now truly resemble their ancient namesakes. I can even see the Orion Nebula, M42, with my naked eyes. Overhead a cloud stretches to the eastern horizon in a broad belt. As my eyes continue to adapt, I realize I’m looking at the Milky Way — an edge-on view into the heart of our very own galaxy, with its dense “cloud” of stars and gas paving my own sky. 

Later, on watch, stars rising from the ocean play tricks on my eyes and I think they are ships hull-down at the horizon. I have to watch them steadily to reassure myself they are indeed off-world and not the approaching range lights of some container-carrying leviathan. I have to move my gaze constantly to pick up faint lights with my more sensitive peripheral vision. Thankfully, the radar faithfully confirms or denies each apparition. I would be significantly less comfortable without this modern aid. 

Gregg comes up to the pilothouse shortly before his 2 a.m. watch and does an engine room check. We each check it at the beginning of our watch and once at mid-watch, which means someone has eyes on all the running equipment every two hours while we’re underway. We look for leaks in the shaft seals, hoses and thru-hulls; loose belts or pulleys; signs of oil or fuel anywhere, and finally check the sight gauges on the fuel tanks. We know to a small fraction of a gallon how much fuel we’re using, thanks to the digital information buss on the John Deere engines, but it’s nice to be reassured by a logical level in the sight glass. 

As I handover the watch to Gregg is the wind is picking up and beginning to complete it’s veering circle of the last 36 hours. By dawn we are once again bucking a stiff headwind and sea. Despite the pitching of the boat, I have no trouble getting some sleep in the forward stateroom, although eventually something in the anchor locker forward of my stateroom bulkhead decides to knock against the bulkhead in rhythm with the waves. 

This time we only have to endure the bashing for a couple of hours and then we begin to feel the lee effect of North Carolina. By mid-morning on Sunday (I think it’s Sunday; you lose track of the time and the day of the week quickly out here…) we are approaching the entrance to the Cape Fear River south of Wilmington. We follow a tug towing a barge up to the city, but duck out of the river and across to the Intracoastal again and head for our marina at Wrightsville Beach. 

Gregg brings the big Krogen up the channel toward the face dock at the marina and executes a beautiful 180; the starboard side coming within inches of the dock as he completes the turn. He’s done this a few times. I step off the boat because I’ve got a plane to catch back to the other real world, but the two Greg(g)s will pick up another crewmember and continue northward on Monday. 

Our leg from Jensen Beach to Wrightsville Beach took approximately 47 hours. We traveled as far as 120 nm offshore and in the core of the Gulf Stream saw speeds as high as 12.6 knots. The engines ran at a nearly constant 1,850 rpm and the smaller of our two generators also ran the duration. We burned less than 300 gallons of diesel fuel and suffered no mechanical or systems failures. The yacht handled breaking waves in the departure inlet of greater than 10 feet and serenely traveled through both head, quartering and following seas without complaint or wander. It was a great trip on a seaworthy yacht and I won’t forget it. 

Copyright © 2010 by OceanLines LLC.  All rights reserved.

Posted by Tom in Cruising Under Power, Engines, Passagemaking News, Powerboats, Technology

Krogen 58′ Northbound: Part 2

Our Krogen 58' Departs Jensen Beach and turns north up the ICW

Our Krogen 58' Departs Jensen Beach and turns north up the ICW

It’s 2 p.m. on Friday and I’m stowing my camera gear carefully in the salon of this big yacht when I hear a sudden muted rumble from below decks. Our captain, Kadey-Krogen Project Manager Gregg Gandy, has started the John Deere diesels. We’re ready to depart our Jensen Beach, Florida, marina and head north to Wrightsville Beach, North Carolina with this brand new Krogen 58′.

Our departure has been delayed for a couple of hours, courtesy of the U.S. Postal Service, who somehow figured out how to take four days to make an express delivery from Tampa to Stuart of our radar set. But that’s behind us now; Gregg and a local technician have the old Furuno unit hooked up and running well. This is a brand new yacht that Kadey-Krogen has been using as a company demonstrator and now they’ve decided to sell it, so it’s on its way up to the Annapolis, Maryland, office. So naturally, we don’t want to be making holes in the beautiful helm panels for this temporary gear. We’ve got it installed on a removable panel offset to the right side of the helm, along with the new Furuno autopilot and the VHF radio.

Gregg Gandy (foreground) and Greg Kaufman in the Krogen 58' pilothouse

Gregg Gandy (foreground) and Greg Kaufman in the Krogen 58' pilothouse

We’ve got full (1,760 gallons) fuel and water (400 gallons) tanks; the galley lockers are loaded with fruit, cereal, granola bars and microwave meals and we let go the lines and head east from the marina into the ICW, then turn north and head for the Fort Pierce Inlet. We could have turned south and gone out the St. Lucie inlet, but the tide isn’t high and Gregg “hates” backtracking, so north we go.

A bottlenose dolphin swings by while we’re in the waterway, just checking out the nice lines of the big Kadey-Krogen. I’m adjusting to steering the yacht from the flybridge. It takes a few minutes before I stop over-correcting and adopt the smaller, more anticipatory movements that keep this deep-keel boat on track. In short order we turn east into the Fort Pierce inlet and get ready to head offshore. Gregg takes the wheel, transferring command from inside the pilothouse and I head below to join him and Greg Kaufman, Kadey-Krogen’s newest sales team member, himself a long-time sailor and captain.

The Fort Pierce Inlet is deceptively calm when viewed from inside

The Fort Pierce Inlet is deceptively calm when viewed from inside

From well inside, the inlet looks calm enough, but the aerial antics of a couple of kite surfers suggest that more is going on at the mouth of the inlet than we can see from here. The tide is still going out and a strong east wind is piling up wickedly steep waves. Gregg has a firm hand on the wheel as the bow starts to rise and fall with the increasingly short-period waves; some breaking now. The TRAC stabilizers have the roll element handled nicely but we’re pitching markedly as even our big, heavy yacht can’t defy the physics of tons of green water completely. It’s a tad dramatic and a crash from somewhere aft in the saloon reminds us that we forgot to latch the refrigerator doors. The lovely Jenn-Air has neatly emptied itself during one of our uphill climbs. Oops.

The water color marks the limit of the inlet outflow

The water color marks the limit of the inlet outflow

Just when the ride is getting to be a little tiresome, we approach the boundary of the inlet outflow, marked by a decidedly sharp line between the murkier water of the inlet and the blue water of the ocean. We’re still in for a bit of a head-bash as we turn north, with the long ocean swells from the northeast and an east-northeasterly wind mixing the sea surface up. Full confession — I’m a tad green around the gills by nightfall and find I need to stay topside while my inner ear, brain and stomach negotiate a settlement. I have the 10-2 watch and by my turn I’m feeling better and slip into the routine. My two shipmates decide to get some sleep and head below to the guest stateroom amidships, which has twin bunks.

The helm routine on watch is simple. Let George (the autopilot) steer, while you watch the course track on the GPS-linked laptop, monitor the VHF and watch the radar. We periodically change the radar range to ensure we don’t miss a small boat up close, but mostly we’re focused on keeping a lookout for the big stuff; large freighters, warships and cruise ships, moving a high relative speeds and sometimes seemingly oblivious to anything else in their way. Gregg is running MacENC on his Mac laptop, while I’m running the latest version of Fugawai Marine ENC on my Windows 7 laptop over on the other side of the helm. Our SPOT Messenger is velcro’d to a forward pilothouse window where it reports our position every 10 minutes. Friends and family follow our trip by checking in on a website that displays the last 50 position reports.

We keep an hourly manual log of time, position, heading, speed, engine RPM, and comments. It’s standard practice offshore and allows you to pick up a dead reckoning position should you lose your electronic fix. The paper charts we would need to do so are in the wide chart drawers to either side of the helm. We do an engine room check every two hours, looking for leaks, loose belts, odd vibrations, expected fuel levels in the sight glasses, etc. The John Deere diesels are in their element, however, and run on and on at 1,850 RPM for virtually the entire trip. These are continuous duty-rated engines that are built to be started and run forever. At that RPM, we’re getting somewhere just north of 8.5 knots of basic hull speed, but the Gulf Stream will add to that significantly once we get in the middle of it.

Toward the end of my watch, the wind and waves have both veered into the southeast, easing the ride considerably and I hand over the helm to Gregg, who has the 2-6 watch. It’s a dark night, with no moon and lots of clouds obscuring the sky. I settle back onto the comfortable settee behind the helm and close my eyes, listening to the symphonic rhythms of a boat at steady cruise — the steady thrum of the engines, the constant rush of water by the hull, the occasional splash of an errant wave. I’m tired, and it’s all very. . . sleep. . .inducing. . .

Cruise ship passes astern of our Krogen 58' at sunset on friday

Cruise ship passes astern of our Krogen 58' at sunset on friday

(to be continued)

Copyright © 2010 by OceanLines LLC.  All rights reserved.

Posted by Tom in Boats, Cruising Under Power, Destinations, Electronics, Engines, Environment & Weather, Passagemaking News, Powerboats, seamanship, Technology

10 Questions with Kadey-Krogen’s Larry Polster


Krogen 58 Cruises Among the Whales

Krogen 58 Cruises Among the Whales

Editor’s Note – In this series we feature a Q&A with the leading executives of passagemaking boat companies.  The second installment features the thoughts of Lary Polster, vice president of Kadey-Krogen, one of the top brands of passagemaking boats. The following bio was provided by Kadey-Krogen:

Larry Polster is a life-long boater, born and raised in Cleveland, OH. As a child he explored the Great Lakes from Mackinac Island to Montreal, and became thoroughly hooked on boating the day, at age 12, he piloted his family’s sedan cruiser the last half of their voyage from Kingston, Ontario, to Rochester, NY, because both mom and dad were too seasick to run the boat. Fast forward 25 years.  After ten years of owning a cruising sailboat, Larry and his wife Janet bought a Krogen 42′ – the beginning of Larry’s relationship with Kadey-Krogen Yachts. Then, completely in love with the Krogen 42′ and all it stood for, Larry volunteered to help out Kadey-Krogen at the Annapolis Boat Show. At the conclusion of the show, he was made an offer to come work for the company in Florida, an offer he graciously turned down. A seed was planted which grew into his mid-life crisis: he left his consulting job of 17 years and opened the Maryland office for Kadey-Krogen Yachts. A few years later he became a partner in the company and currently serves as vice president.  Larry and Janet along with their daughter Hannah and their Portuguese Water Dog, Sasha (the office mascot), reside in Annapolis, MD.

The questions asked are all from OceanLines and the answers from Larry Polster are verbatim.


1.   OceanLines:  Kadey-Krogen is considered to be among the top couple of full-displacement yacht builders in the industry.  When did the company really begin to gel and succeed in the marketplace?  And was there a particular boat that represented that “turning point?”

Polster:   The Krogen 42’ is what started it all and we built 206 of them from 1977 through 1997.  The Krogen 42’ became immensely popular in the mid-80’s and I think that secured the company’s place in the industry.  There was also a second turning point with the launch of the first Krogen 58’ in 2000.  It was the 58 project that was the impetus for the level of refinement, both in equipment as well as fit and finish, that is found in each and every Kadey-Krogen built today.

2. OceanLines:  What, in your mind, defines the Kadey-Krogen “brand?”  In other words, what is it about Kadey-Krogen that customers and boaters think, that they don’t think about other brands?” 

Polster:  Actually Tom, I think that really is two different questions.  The “brand” can be summed up in four words:  Capability, Liveability, Family and Value.  As for what our owners think, or more importantly know, about Kadey-Krogen, is that we represent a full and complete package – from the initial handshake to the inevitable sale when the owners are ready to move on.  Look on YachtWorld at the huge percentage of our yachts that are listed with us and then look at other brands.  Our owners stick with us and that speaks volumes.  Yes, there are those out there that are capable of crossing oceans and a motoryacht can make a great liveaboard, but only a Kadey-Krogen is At Home on Any Sea.

3.   OceanLines:  Like many other builders in recent years, Kadey-Krogen seems to have concentrated on expanding the larger end of its fleet.  Do you think this represents a shift of the early market away from smaller boats in general or just an expansion?  In other words, is there still a good market for the smallest boats in this market segment of liveaboards and serious cruisers?

Polster:  There is definitely a market for the 40-50 foot trawler.  Our expansion on the larger end has been purely to fill in size gaps with vessels that can be handled by a couple.  We had nothing between 48 and 58 feet, hence the 55, and we had nothing larger than the 58, hence the 64’ Expedition.  Other builders are expanding way beyond 65’ but anything beyond the mid-sixties really requires more than two people and until you get near 100 feet, you don’t have proper space for crew.  Perhaps that is why there are such a relatively high number of large, late-model trawlers for sale.  Getting back to the 40-50 foot market, if you closely exam the Krogen 48’ North Sea you will notice that we put a tremendous amount of effort in bringing a proven model into the 21st century.

4.      OceanLines:  Has Kadey-Krogen looked at some of the latest technology developments, such as the various forms of diesel-electric propulsion, or perhaps newer hull designs such as the cat SWATH hulls?  If so, what is the likelihood some of it will make its way aboard some future (or present) Kadey-Krogen yachts?

Polster:  If it ain’t broke, don’t fix it.  The laws of physics and hydrodynamics have not changed.  We feel our efforts are better concentrated on continued improvements with proven materials and equipment. 

Krogen 64 Artist's Rendering

Krogen 64 Artist's Rendering

5.    OceanLines:  You recently announced the availability of the Krogen 64’ Expedition.  While the economy is certainly affecting all new boat builders, is it possible Kadey-Krogen might offer even larger yachts, perhaps in the same Expedition series as the 55’ and 64’?

Polster:  Possible, yes, likely, no.   We have a design for a beautiful 77 footer that would extend the Expedition series, but we build yachts that a couple can handle with ease and confidence. A 77 footer would push those limits for most couples.

6.     OceanLines:  In your opinion, which systems aboard today’s yachts are the most mature and reliable; and which are the least so?  If you could send a message to systems suppliers to Kadey-Krogen yachts, what would it be?

Polster:  To me, hands down, the most mature and reliable is the modern diesel engine like the 6.8 liter John Deere.  Here is a piece of equipment with parts moving roughly 1800 times per minute.  That’s 108,000 times per hour of operation which means parts will move 216 million times before the factory warranty even expires! 

As for less reliable systems, there are certainly items that one is more likely to replace than others, but that does not make it an inferior product or something a supplier needs to work on and I think that any builder that concentrates on quality will say the same thing.  The overwhelming majority of the components have their origin outside of the recreational marine or yacht market and as such are well proven before we ever see them.

7.    OceanLines:  What features do Kadey-Krogen owners most often point to as influencing their decision to purchase a Kadey-Krogen yacht?

Polster:  The liveability of a Kadey-Krogen is well recognized by the cruising community, but the way a Kadey-Krogen handles at sea, especially in a following sea, is what cements the relationship.  Other trawlers either get pushed around, slalom like a snow ski or water ski on edge, or both in following seas because the aft third of their underbody is relatively flat and the entire beam of their transom is in the water.  Our Pure Full Displacement hull form with fine entry and wineglass stern translate into what I call the “magic carpet ride” in following seas.  The boat feels like it is hovering in place, but in reality is tracking forward as if on rails. 

Krogen 48, A Popular Liveaboard Cruiser

Krogen 48, A Popular Liveaboard Cruiser

8.     OceanLines:  Are there some examples of owner-requested features aboard your yachts that have become standard?

Polster:  We are a limited production builder, and as such have the opportunity to sit with each customer and review personal touches.  Most recently it was the Viking range you may have seen in the Krogen 55’ Expedition and Krogen 58.  A couple was moving up from a Krogen 44’ to a Krogen 48’ and they asked if we could fit in the Viking.  After a design review session with our naval architect, voila, the Viking stove is now standard aboard the 48’ North Sea.

9.    OceanLines:  Some of the builders in the “small boat” market have done a good job of bringing new boaters in at the bottom end of their product lines and keeping them as they upgrade through the fleet to larger and larger vessels.  Do you see a way for a trawler builder to do this, both from a size and price perspective?

Polster:  Yes, although we feel it’s more important to keep them in the “family” which is why some Krogen owners are buying smaller, not larger.  In the past eighteen months we have had four sets of owners in the “multiple” category.  One couple purchased their 4th Krogen, another their 5th and still another their 6th Krogen. 

10.   OceanLines:  Are you still satisfied with having Kadey-Krogen yachts built in East Asia?  Do you see possibilities down the road for builders like yourselves to take advantage of some of the emerging capabilities in places like Turkey and Poland?

Polster:  We have a very special relationship with Mr. Lin Kao Shui and Asia Harbor Yacht Builders.  We have been building at Asia Harbor for 18 years.   They only build for us and we only build at Asia Harbor.  Both companies have worked hard to produce the quality yachts that are Kadey-Krogen today.  As you might suspect from answers to some of the earlier questions, we’re not about to jump on the “greatest thing since sliced bread” bandwagon.  Over the past ten years we have seen many companies leave Taiwan only to return upon realizing that the grass is not greener…

11.   OceanLines:  In the last 18 months, most builders in your market space have introduced new models based upon an existing hull.  Kadey-Krogen has not.  Why?

Polster:  We’ve jokingly dubbed this phenomenon the “stretch-a-boat” concept.  In the last 18 months we have seen notable manufacturers stretch a 41-footer to be a 49-footer, a 47-footer to a 52-footer, and a 55-footer to a 60-footer. They have taken existing models and just inserted five to eight feet into the mold and voila, they have a new hull without significant design, engineering and tooling costs.  The problem is they have ignored architectural integrity, something Kadey-Krogen Yachts will not do.

12.   OceanLines:  Architectural integrity is not a concept that has received much attention.  Would you please explain what you mean?

Polster:  You are correct.  It has not received much attention because it only became an issue in the recreational yacht market very recently as builders started stretching boats in order to save development costs.  Perhaps the best-known example of violating architectural integrity occurred back when SUVs first became all the rage. Manufacturers simply took the chassis of another vehicle and put a large boxy structure on top, thereby raising the center of gravity. Remember all those early stories about SUVs rolling over?

Do I think these stretched models are going to roll over the way those early SUVs did?  Certainly not, but when a naval architect designs a boat, the hull is designed to accomplish a set of goals.  Designing a new boat is not done piece-meal and many decisions and measurements affect multiple characteristics.   If you take a boat and stretch it, the engineering is changed. You simply can’t design the proper curvature and shape of a hull, then stretch the middle by 10% or more, or stick a larger cockpit on it, and have the physics stay the same. You can’t, using sound naval architecture principles, place the propellers, rudders, etc. on a boat and then change its length by 10-15% and add a larger engine and prop, and expect the same handling result.   Take a sea trial, preferably on a really rough day. Insist on turning off the stabilizers and hand steering the boat in all conditions and you’ll see what I mean.


Copyright © 2009 by OceanLines LLC

Posted by Tom in Boats, Construction & Technical, Cruising Under Power, Industry News, Passagemaking News, People, People & Profiles

John Deere Announces Three New Marine Engines

New John Deere PowerTech™ 6090 SFM75 Marine Diesel Engine -- Photo: JDPS

New John Deere PowerTech™ 6090 SFM75 Marine Diesel Engine -- Photo: JDPS

John Deere Power Systems announced today that it was beginning production of three new marine engines for the commercial and recreational marine market.  The new engines offer a power range of 139 kW (186 hp) up to 559 kw (750 hp), the latter being the most powerful engine offered by JDPS.  All three will be available for installation in early 2010 and all meet EPA Tier 2 and EU emissions requirements.  They are also MARPOL Annex VI compliant.

The PowerTech 6068AFM75 has 6.8L of displacement and boasts up to 246 kW (330 hp). This engine delivers high horsepower in a small package and offers more flexibility in this popular power range.  The 6068AFM75 is a 6-cylinder, electronically controlled, turbocharged and air-to-coolant aftercooled marine engine with more low-speed torque and better transient-response times.

The PowerTech 6090SFM75 has 9.0L of displacement and offers up to 373 kW (500 hp). The 6090SFM75 is a 6-cylinder, electronically controlled, turbocharged and air-to-seawater aftercooled marine engine.

 The PowerTech 6135SFM75 has 13.5L of displacement and boasts up to 559 kW (750 hp). This engine is the most powerful engine produced by John Deere and offers high torque at low-rated speeds. The 6135SFM75 is a six-cylinder, electronically controlled, turbocharged and air-to-seawater aftercooled marine engine.

(adapted from materials provided by John Deere Power Systems)

Copyright © 2009 OceanLines LLC

Posted by Tom in Industry News, Technology