Pages

Ads 468x60px

Friday, 21 September 2012

Left Coast Dart

Not long ago I met Jim Lee at a community college in Oak Harbor, WA where I happened to be teaching a seminar on composite materials. Jim mentioned that he wanted to start a boat company in Anacortes and was searching for a design similar to the B25, which, coincidentally, I had designed back in 1987. The B25 had been a highly successful trailerable sailboat with a long string of victories at major events in the 1980's and 1990's.
Dart with a mini-sprit punching upwind 

Jim had sailed a B25 on San Francisco Bay and we agreed that it would be a great idea to produce an update of that design. So I made some preliminary drawings for a boat that would be a worthy successor to the B25 and it became the Left Coast Dart. The idea was to continue the theme of a fast, seaworthy boat with a lifting keel that could easily be trailered. It would have basic accommodations, including good sized berths, a porta-potty and a place for a single burner stove. It would have just enough comfort for a couple with perhaps a kid or two to spend a night or weekend aboard. I wanted the styling to be roughly the same as the B25 but modernized.
Notice the dacron sails. Laminated sails would be lighter and faster.

In the years since I drew the 25, there have been vast improvements in composite materials and processes as well as the design tools we use. In 1987 I drew all my boats by hand and had only rudimentary computational devices to optimize the hull design. Today I use powerful software to model the hull, rig and foils in the computer and generate the drawings in AutoCAD. So let's start with the hull design.

Lines Plan showing fine waterlines forward and powerful aft sections

In the lines plan you can see the fineness of the bow sections and the slightly hollow waterlines. Notice that the bow is not quite plumb. I prefer that over a plumb bow purely for aesthetic reasons. Aft, I gave this hull a flat, clean run and firm bilges. I could have incorporated a hard chine here, but this boat will operate in both displacement mode and planing mode and chines add a bit of turbulence when the boat is traveling at hull speed. I think chines are something of a fad these days. You find them even on beefy Jeanneaus and Beneteaus that will likely never surf, let alone plane. Here are some numbers:


LOA -- 25�- 10�
LWL -- 22�- 10�
BMAX -- 8�- 4�
DRAFT -- 6�- 0� (Keel Down)
Draft -- 3�- 0� (Keel Up)
DISP -- 2,200 LB
BALLAST -- 850 LB
SA (100%) -- 338 SF
DISP/LENGTH -- 82.54
SA/DISP -- 31.97  
I -- 31�- 6�
J -- 9�- 1�
P -- 31�- 3�
E -- 12�- 6�


The keel is a vertical fin with a torpedo bulb. If you're a regular reader of this blog you know I'm not a fan of this type of keel for cruising boats. For racers, it is the best solution from a performance perspective. At about 6 feet of draft, the Dart is deeper than the average boat of this size and nearly all of the lead ballast is in the bulb, making it a stiff boat. I designed a kelp cutter for the keel, which would be built into the leading edge.  You'll want to order that option for sailing in southern California. The rudder is a deep, high aspect ratio foil with the leading edge tucked under the transom to provide balance. The result is a light helm and very easy steering. The numbers indicate a lightweight, high powered vessel, but not extreme. It will provide excellent light air performance and exhilarating downwind speed.

Superb craftsmanship on the keel plug. They used this to create the keel mold.


I originally designed the boat for a carbon fiber mast and retractable bow pole, but Jim was adamant that it be fitted with an aluminum rig. Aluminum is certainly less expensive but it costs the boat about 12-18 seconds/mile in performance. Jim was also fiercely opposed to the bow pole, preferring instead a conventional symmetrical kite. This also cuts into the boat's performance and it didn't take long before he added a short bowsprit. My hope is that the next boat out of the mold will be fitted with a retractable pole and a carbon rig to take advantage of the boat's true potential.
Dart, circa 2010. Non-overlapping jibs and moderate proportions for the spinnaker

B25 circa 1987
1991 B25 Listed on Yachtworld for $21,000

Simple, efficient deck plan

On deck, goal was to make the boat a comfortable and efficient sailing machine. The cockpit is long and wide with the mainsheet traveler mounted on the sole. Jib tracks are mounted well inboard for close sheeting angles.  With the compact proportions of the cabin trunk, the companionway hatch lifts off instead of sliding forward. This caused Jim no end of tension, but it's really the only way to make it work on a boat of this size and type.
The original design had a split bow pulpit. Jim preferred the type shown here, but you can order the split version.


Jim did some innovative things with the electrical system, such as molding the electrical wiring into the deck so there is almost no wiring visible in the boat. Along the way he invented the Simple Stereo which enables you to connect your IPod or MP3 directly into the amp and and rock the boat. Construction is is vacuum infused vinylester resin using biaxial e-glass over a lightweight Corecell foam core. This is standard practice these days and it is a vast improvement over the hand layup method we used back when we were building B25's. The Dart is longer, roomier and much faster.

Simple, lightweight accommodations. Most who seriously race this boat would dispense with the V-berth.


Lightweight internal structure with just enough wood to keep it interesting.


Hull #1 sitting outside Jim's shop in Anacortes
When Jim started this project he was fairly new to boatbuilding. It's not easy to be a boatbuilder even in the best of times and the last few years have been anything but. So I give Jim a lot of credit for sticking with it and building exquisitely detailed pocket racers. For Jim, I think it's more about building very nice boats than making a profit, and that is a refreshing departure from the thrown together boats we often see at the boat shows these days.

In its brief career the Dart has had some impressive wins:
First Overall, 2012 Lake Pontchartrain Racing
First in class, 2012 Whidbey Island Race Week
First in class, 2011 PITCH Regatta (Bellingham)
First in class, 2011 Windermere Regatta.

Check out Left Coast Yachts at http://www.eskimo.com/~leftcst/iWeb/Left_Coast/The_Dart.html




Read More..

Wednesday, 29 August 2012

Beneteau 423 Rig Conversion Update

Over the last couple of weekends we've made good progress on the rig conversion. We finished modifying the boom, added some rope clutches for reefing lines and a second jib halyard, and installed the necessary hardware for the lazy jacks. We also installed a Tides Marine sail track. It was easy to install, fit perfectly and looks great. The new mainsail was also easy to hank on, and slides up and down the track with all the ease I had hoped for.

Notice the artfully shaped reinforcement patches. I'm not sure if they an improvement but they do look sporty.
I installed the track before putting the boom on. To make it easier to install I put a spare sail slide in the track and attached a halyard and downhaul so I could put some tension on the halyard then just guide the track into the mast. When it was all in, the halyard held the track exactly where I wanted it while I installed the retaining screws. Once the track was installed, it was a simple matter install the boom, vang and control lines and, finally, to hank on the sail and secure all. The entire operation took about four hours.

Mainsail installed. Notice the custom Home Depot sail cover!
The stackpack bag won't be ready for another week so the sail is flaked on the boom and covered with a couple of plastic tarps from Home Depot.  We're looking forward to going for a sail over the Labor Day weekend.
Read More..

Monday, 27 August 2012

X-Yachts XC-38 Review

Over the last thirty years or more, X-Yachts has created a reputation for building fast, high quality sailboats that have won major regattas in both the old and new worlds. In recent years they have broadened their product lines to include all-out cruising yachts, as opposed to the racer-cruisers they have built their fine reputation on. I think Niels Jeppesen has been the chief designer for the company since it was founded around 1979, and he has produced a long and successful string of what I consider conservatively aggressive sailing yachts. Their cruising boat line carries the designation "XC" and the  XC-38 is the smallest in that line.

XC-38: Conservative proportions coupled with a powerful rig.
 I've always liked the juxtaposition of conservative and aggressive characteristics that Jeppesen and his team instill in their products and this 38 footer is an excellent example of their thinking. With its relatively springy sheer and conservative cabin trunk, beefy hull and aggressive rig, the XC-38 looks like a fun, yet serious cruising yacht. It is, to my mind, unfortunate that we don't see more of this type of boat on the west coast of the USA. In studying the profile view above, notice the depth of the hull and the proportions of the underbody. My guess is that the hull incorporates "V" shaped sections instead of the the more often seen "U" shaped bottom. Couple this with the efficient keel and deep rudder and you have a hull that will be especially fun to sail upwind. Here are some stats:
LOA:            37.99'
LWL:            34.06'
BMAX:         12.50'
Draft:               6.50'
DISP:            19,621 LB
BAL:               8,448 LB
SA:                     865 SF
BAL/DISP      43%
D/L ratio:        221
SA/D ratio      19

These numbers are indicative of  boat of moderate proportions and good manners.The keel and rudder are deep and efficient shapes for cruising. These days there is no shortage of stuff in the water to snag and foul keels and rudders. You only have to dive overboard to free the keel from nets, pots or kelp in the middle of the night a few times to appreciate clean and streamlined appendages on your boat.

Big cockpit, artfully curved windshield, conservative lines.

On deck you'll find simple lines forward without any fancy flourishes. The foredeck is flat and uncluttered, with an anchor locker and deck mounted windlass. The nearly plumb bow requires a bowsprit of some sort so the anchor rode doesn't rub the finish off the hull when at anchor.
Clean lines forward and an A-frame bowsprit
The sailplan incorporates non-overlapping jibs. I've designed a number of boats with this type of rig and it's great for windward/leeward racing. It's not as good for reaching because when you ease the sheet on this type of jib, the top of the sail opens up much more than the bottom so you end up reaching with the lower part of the jib over-trimmed to keep the top from flogging. One solution is to set up outboard leads for the jib and that's what I'd do on this boat if I owned one.

Twin wheels, trapdoor transom and artfully curved windshield.
The cockpit on this boat incorporates nice, high coamings and twin wheels along with a curved windshield. This arrangement invites comparisons with the Hallberg Rassy 412. Notice the instrument console on centerline, with a dropleaf table incorporated into it. This is an acceptable arrangement for daysailing but not very good for passage-making, although it is redeemed somewhat by the instrument displays built into the forward cockpit coaming. The fact is that cruisers spend little time behind the wheel when on a passage, so locating vital displays back there is inconvenient at best. Aboard the Honcho we mounted the GPS on a swivel just forward of the binnacle so you could see it from anywhere in the cockpit. We also traded the Raymarine instruments for TackTick wireless units, which could be mounted anywhere we wanted them, even below. Our Beneteau 423, Finisterra, came with the Raymarine instruments and, reliable as they are, we've already replaced them with Tackticks. Another unfortunate aspect of this cockpit is the permanently mounted dropleaf table that bisects the cockpit. Again, we have this arrangement on the Finisterra and find it to be inconvenient when sailing. I've already started designing a stowable table that will give us room to maneuver while under sail and still provide fine dining accommodations in the cockpit when we need them. Notice the nearly vertical transom. It sports a drop-down panel and gate to make a swim step or platform. I think a reversed transom with a molded-in swim step is preferable because it is so much more convenient than this arrangement. It would also increase the sailing length of the boat and reduce turbulence at the  transom.

Nearly perfect accommodations plan

X-Yachts offers only one interior plan in the XC-38, which is fine with me because it works really well. The forward cabin is spacious and incorporates a large V-berth, multiple lockers and cabinets, and plenty of light. Those windows built into the hull look small but provide a good deal of light and visibility. The settees in the main cabin are big enough to serve as sea berths. With the galley, nav station and head aft, the crew that sleeps in the main cabin won't be disturbed when you go below to check the chart or fix a cup of coffee during the midnight watch. The galley is large, with lots of counter space and double sinks amidships. I respect the designer's decision to eschew a second head on this boat. One is plenty for the cruising couple and this one incorporates enough room for a shower as well. The aft cabin offers a good sized berth and plenty of storage. In studying the photos of the boat on the X-Yachts web site, it took some time to get used to the horizontal grain pattern on the furniture. I'm not sure I like it yet, so I'll reserve judgement until I see a boat in person.

Overall, I think the XC-38 would make a very good medium sized cruising yacht. I'd ask for that reverse transom and swim step if I ordered one but other than that, this boat is ready to cruise.
Read More..

Saturday, 4 August 2012

Rig Conversion Update

We stepped the new mast a few days ago. The whole operation went without a hitch, except for the actual delivery of the mast, which was shipped from US Spars in Gainesville, FL. The trucking company, called "Big Dog" is not one I would use again. The driver picked up the mast around July 1st and told me it would arrive on the west coast on the 5th or 6th. Well, that day rolled around and the mast didn't show up, and when I called the driver he said he'd be there in three or four days due to some sort of family complication. Another three or four days roll by and I called him again. Well, more complications and blah, blah, blah and it'll be a few more days. So I rearrange my schedule again and sure enough, when I got through to the driver, "yada yada yada, a few more days". The thing finally arrived about three weeks late, but the driver entertained us with the most horrific story of tragedy and travail on the road...Bottom line, Big Dog no bueno.

Anyway, the mast was in good shape when it arrived, and making the swap was pretty easy, and done in a couple of days. I brought the boom home and converted it from a roller furling type to a real boom with an outhaul and three reefs. It's about ready, but first I have to install the Tides Marine sail track system, which I'll get done next weekend. The new mainsail, a dacron unit with full battens, was delivered this week from Elliott-Pattison and I have the lazy jack system nearly ready to install. We're still getting bids on the "Stackpack" and expect to make a decision on it in the next couple of weeks.

As of today, the costs look like this:
Mast with optional equipment................ $3,500
Shipping cost........................................ $2,300
Yard bill for swapping out the mast........ $1,570
Converting the boom..............................$   100
Tides Marine sail track system................$1,250
Full-batten dacron mainsail.....................$3,000

Subtotal...............................................$11,720

We still have to purchase the Stackpack bag, lazyjack materials and reefing gear, which I estimate to cost around $1,200.

You may ask if it's worth upwards of $14K for what amounts to nothing more than converting the roller furling mainsail to a classic type. I think the answer would be different for everyone. For us the answer is an unqualified 'Yes' because we'll be able to SAIL to weather, reef the main on any point of sail, and rest assured that we'll never get caught out with the mainsail stuck.

Photos coming soon.


Read More..

Tuesday, 10 July 2012

Emerald Bay

We headed over to Catalina Island's Emerald Bay last week, expecting lots of activity for the Fourth of July holiday. This was the Finisterra's first voyage to our favorite cove. We left the marina in Long Beach at 1500 and tacked up the harbor toward Angels Gate in light air. The UV cover on the jib let go after four or five tacks at the spot where it rubs on the mast mounted radar antenna, so we looked a bit ragged as we passed through the Gate, with a foot-long tatter trailing off the leach of the jib, but the boat sailed well until we ran out of wind. We motored the rest of the way to the cove, arriving at 1845.
Finisterra moored at Emerald Bay


We picked up a mooring behind Indian Rock and sat back to enjoy the view as the sun set behind the hills. On the trip over from the mainland we used the autopilot and about every twenty minutes it conked out, with "Drive stop" on the display. According to the manual, that message means that the linear drive quit because the force required to turn the rudder is too great for the system. That doesn't sound right to me because the helm was pretty light at all times, so in the next few days I'll be tearing into the system to find out what's really going on there.

The boat is equipped with electric heads that use fresh water to flush. I'm not a fan of them and, sure enough, the aft head stopped working. So we'll swap them out for the tried and true Jabsco manual heads. Aside from that little glitch, the boat and its systems worked well throughout our stay.
Calm weather prevails as we look toward the west end of the Island 


Since this was our first trip aboard the boat, there were lots of little things to fix, and this took some time, but we still had plenty of opportunities to hike and putter around the anchorage in the dinghy. We met some folks from Corsair Yacht Club, John and Judy, who sail a beautiful old Ericson 41. They invited us to a barbeque at their club site, which is located next to the scout camp near the west end of Emerald Bay. It was nice to connect with them. The next day we hiked out toward the west end of the island past Parson's landing, where the views were spectacular and we saw lots of signs of deer, island fox and bison.

Not far from Parsons Landing we encountered this bison on the trail. Notice that his horns have been clipped. For several years the Island conservancy kept them out of the the west end of the Island, but nowadays they roam freely.

The weather stayed cool and overcast until our last day, and we departed the island under beautiful blue skies and sparkling sunshine. The Finisterra sailed under main and raggedy jib, doing seven and a half knots, until we reached the entrance to LA harbor. Passing the lighthouse, we hardened up and reefed the jib in about 20 knots of wind and sailed up the main channel to get a glimpse of the famous old battleship USS Iowa, which recently took a permanent berth near the maritime museum. The ship first deployed in 1943, and participated in bombardments of Japan in WWII. As the war drew to a close, the Iowa was present along with the USS Missouri in Tokyo Bay for the official surrender of Japan, marking the end of the World War. It is interesting to note that it was during WWII that the battleship, with its big guns was supplanted by the aircraft carrier as America's premier seaborne combat weapon. Already obsolete by the end of the war, the USS Missouri was the last US battleship to be built. 
USS Iowa at her permanent home in Los Angeles harbor



The big guns on the Iowa are impressive artifacts of a bygone era

Leaving the Iowa behind, we headed back down LA harbor's main channel and bore off for Long Beach, only to be confronted with the sight of a large ship entering the harbor loaded down with several new hammerhead cranes destined for service loading cargo in the Port of Long Beach. It was quite a sight to see the ship with its cranes working its way, with the help of a couple of tugs, through the harbor entrance and into her berth. The cranes were painted with the COSCO/SSA emblem. COSCO, not to be confused with Costco, is short for China Ocean Shipping Company. SSA is an American logistics company that manages marine shipping terminals.

It's hard to imagine this shipload of cranes crossing the Pacific. The weather routing service earned their pay on this project. Shipping companies, like us regular yachties, use routing services to route their ships to avoid weather systems. 


Three tugs guide this unwieldy ship to her berth in Long Beach harbor.

We got back into our slip before sunset after a nice sail down the harbor. I have been pleasantly surprised by the performance of the boat with the small roller furling main sail and look forward to sailing with the new rig. The mast has been shipped from the manufacturer and we expect it to arrive this Friday. 
Read More..

Thursday, 21 June 2012

Rig Conversion Update

The new mast is scheduled to be delivered in early July. US Spars says the standing rigging from the original mast will fit so we won't have to buy new rigging. When the mast arrives we'll unship the old one and transfer the instruments and antennas, including radar and TV. We will also install a Tides Marine sail track and lazy jacks. There won't be much to do on the boom except add some sheaves and reefing lines. On deck we'll add a set of rope clutches for the reefing lines.  The new mainsail is also on order and we expect to have it in mid-July.
Read More..

Monday, 18 June 2012

Morris 45RS Review

M45RS with non-overlapping jib and in-boom furling main. 


We've been having a grand time tinkering with the Finisterra but the previous owner was so meticulous in his care of the boat that there is little for me to repair or rebuild. So while we're waiting for the new mast, I thought it would be fun to take a look at the M45RS, the latest offshore racer/cruiser from Morris Yachts. Morris has been around since the 1970's and has had a longstanding relationship with Chuck Paine, who designed this boat as well as the pretty double-enders that Morris was originally known for.

A modern and powerful rig on the M-45RS. Notice the spreaders and non-overlapping headsail.  This is a racing rig on a sleek hull with a deceptively cruisey deck.


Morris describes this new boat as a "Fast yet extremely durable IMS and PHRF racing yacht, [yet] she is also highly qualified for long distance adventures." I'm not too sure about optimizing for PHRF, but the M45 is clearly a faster ride than we ordinarily expect from Morris. The rig certainly would not look out of place on a pure racing machine. It's tall, with non overlapping headsails and a carbon fiber three-spreader mast. The sail area/displacement ratio is a healthy 19.30 and the displacement/length ratio is 149. These ratios indicate a fairly powerful rig on a medium displacement hull. The ballast/displacement ratio of .42 is somewhat indicative of a stiff boat that should go upwind quite well, but the drawback in these impressive performance numbers is the draft, which is only 5.83'. That will compromise the upwind performance of the M45. Of course there are many parts of the world where more draft would limit the places you can go in this boat, so the choice is to put a deeper keel on the boat and go get some trophies, or settle for fewer trophies and more cruising destinations. Since I live in California where the water is plenty deep, I'd go with a deep keel if they'd offer one.

Notice the mid-cockpit main traveler and exposed windlass.


The deck layout of the M45 is an interesting compromise for racing and cruising and it exposes the difficulty of trying to be both a racer and a cruiser. Starting at the bow, notice the traditional pulpit. It works fairly well for a cruiser, but makes handling the asymmetrical spinnaker, which is set on an extendable pole, tricky. The foredeck, which is quite small is further cluttered by the windlass, making scrambling around up there a bit more challenging for the bowman. Moving aft, there is a pair of dorade vents just forward of the mast which will be much appreciated when it's hot and sultry in the galley, but add more clutter to the foredeck. I was surprised to see the drawings showing the mainsheet led forward along the boom, admirals cup style, then aft along the deck to a pair of winches adjacent to the traveler. I'm certain that arrangement was quickly changed to a cabintop traveler and conventional mainsheet system. The cockpit is too small for that sort of arrangement and few cruising families would tolerate the traveler bisecting the cockpit. Aside from those small items, don't you think the proportions of the sheer and cabin trunk are simply elegant? I also like the slim lines of this boat. It is a bit narrower and finer in the stern than you'll find on similar sized production cruisers. This gives up some space below but will result in an easy motion and good all around performance.

Morris offers the boat in two basic versions, galley up and galley down.  In the galley up version, the main salon is forward and a step down from the raised portion of the cabin trunk. Just forward of that is the forward cabin, which includes a queen size berth, plenty of seating and storage and lots of varnished wood.
Sweet lines are evident in the hull shape. Is this a practical layout?

In the raised part of the cabin you'll find a large galley to port, offering the cook lots of light and splendid views through the large windows. The nav station, to starboard is equally inviting, with lots of finely crafted wood and all the instrumentation you need to circle the globe. Adjacent to the companionway is the boat's only head. It's spacious and incorporates a shower stall. Opposite the head is a quarter cabin to port, with a double berth and what appears to be plenty of storage.

Galley down arrangement. I like the shape of the underbody, but not so thrilled with the saildrive.

In the galley down arrangement, the main salon is in the raised part of the cabin, along with the head and nav station while the sleeping cabins are the same as in the other arrangement. In this version, with the galley forward where the motion of the boat is greater, cooking will be a bit more challenging. I like this arrangement almost as much as the other, but neither seems quite right to me. I think it's better to have the dinette as well as the galley in the raised part of the cabin, and the head forward, next to the forward cabin. I keep trying to imagine us living aboard this boat and I have a feeling I'd want to change things around before long. Imagine yourself living on this boat. What do you think?

One thing we can be certain of is the quality Morris puts into the boats they build. There are photos of the M 45RS on the Morris web site (www.morrisyachts.com) which is where I got the drawings and photos for this review. I encourage you to visit the site and enjoy not only the photos of this boat, but the earlier boats that Morris built. You can't help but admire them.

Read More..
 

Sample text

Sample Text

Sample Text