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SEA PEARL 28 Detailed Review

https://images.harbormoor.com/originals/80ac412d-20bd-4799-9452-d14f4cd1c24a

If you are a boat enthusiast looking to get more information on specs, built, make, etc. of different boats, then here is a complete review of SEA PEARL 28. Built by Marine Concepts (USA) and designed by undefined, the boat was first built in 1990. It has a hull type of Keel/Cbrd. and LOA is 8.43. Its sail area/displacement ratio 19.28. Its auxiliary power tank, manufactured by undefined, runs on undefined.

SEA PEARL 28 has retained its value as a result of superior building, a solid reputation, and a devoted owner base. Read on to find out more about SEA PEARL 28 and decide if it is a fit for your boating needs.

Boat Information

Boat specifications, sail boat calculation, contributions, who builds sea pearl 28.

SEA PEARL 28 is built by Marine Concepts (USA).

When was SEA PEARL 28 first built?

SEA PEARL 28 was first built in 1990.

How long is SEA PEARL 28?

SEA PEARL 28 is 7.49 m in length.

Member Boats at HarborMoor

Sea pearl 28

The sea pearl 28 is a 27.66ft cat ketch (unstayed) designed by ron johnson and built in fiberglass by marine concepts (usa) since 1990..

The Sea pearl 28 is a light sailboat which is a good performer. It is reasonably stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat. There is a short water supply range.

Sea pearl 28 sailboat under sail

Sea pearl 28 for sale elsewhere on the web:

sea pearl 28 sailboat

Main features

Model Sea pearl 28
Length 27.66 ft
Beam 8.01 ft
Draft 1.57 ft
Country United states (North America)
Estimated price $ 0 ??

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sea pearl 28 sailboat

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Sail area / displ. 19.28
Ballast / displ. 32 %
Displ. / length 112.73
Comfort ratio 14.23
Capsize 2.06
Hull type Monohull keel with centerboard
Construction Fiberglass
Waterline length 24.57 ft
Maximum draft 5.51 ft
Displacement 3747.85 lbs
Ballast 1190.49 lbs
Hull speed 6.64 knots

sea pearl 28 sailboat

We help you build your own hydraulic steering system - Lecomble & Schmitt

Rigging Cat Ketch (unstayed)
Sail area (100%) 289.98 sq.ft
Air draft 0 ft ??
Sail area fore 0 sq.ft ??
Sail area main 0 sq.ft ??
I 0 ft ??
J 0 ft ??
P 0 ft ??
E 0 ft ??
Nb engines 1
Total power 0 HP
Fuel capacity 0 gals

Accommodations

Water capacity 50 gals
Headroom 0 ft
Nb of cabins 0
Nb of berths 0
Nb heads 0

Builder data

Builder Marine Concepts (USA)
Designer Ron Johnson
First built 1990
Last built 0 ??
Number built 0 ??

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Review of Sea Pearl 28

Basic specs..

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.

The boat is equipped with 189.0 liter fresh water capacity.

The boat equipped with a ketch rig. A ketch rig is generally considered easier to handle, because the sails are smaller, and because it can sail on most points to the wind with one sail completely taken down for repair or while reefing. The sail configuration of a ketch allows for better comfort and stability when sailing downwind or on a broad reach.

CentreBoard

The Sea Pearl 28 is equipped with a centreboard keel. A centreboard keel is a pivoting lifting keel, allowing to sail both coastal and inland waters.

The boat can enter even shallow marinas as the draft is just about 0.48 - 0.58 meter (1.57 - 1.87 ft) dependent on the load. See immersion rate below.

Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

What is Capsize Screening Formula (CSF)?

The capsize screening value for Sea Pearl 28 is 2.06, indicating that this boat would not be accepted to participate in ocean races.

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 6.6 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Sea Pearl 28 is about 122 kg/cm, alternatively 685 lbs/inch. Meaning: if you load 122 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 685 lbs cargo on the boat it will sink 1 inch.

Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

What is Motion Comfort Ratio (MCR)?

What is L/B (Length Beam Ratio)?

What is a Ballast Ratio?

What is Displacement Length Ratio?

SA/D (Sail Area Displacement ratio) Indicates how fast the boat is in light wind: - Cruising Boats have ratios 10-15 - Cruiser-Racers have ratios 16-20 - Racers have ratios above 20 - High-Performance Racers have ratios above 24 Sail-area/displacement ratio (SA/D ratio): 19.22

Maintenance

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 23m 2 (247 ft 2 ). Based on this, your favourite maritime shop can tell you the quantity you need.

If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.

UsageLengthDiameter
Jib sheet 8.4 m(27.7 feet)10 mm(3/8 inch)
Genoa sheet8.4 m(27.7 feet)10 mm(3/8 inch)
Mainsheet 21.1 m(69.1 feet)10 mm(3/8 inch)
Spinnaker sheet18.5 m(60.8 feet)10 mm(3/8 inch)

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.

We are always looking for new photos. If you can contribute with photos for Sea Pearl 28 it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us . Criticism helps us to improve.

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  • Sailboat Guide

sea pearl 28 sailboat

1991 Marine Concepts Sea Pearl 28 cat-ketch

  • Description

Seller's Description

1991 Sea Pearl 28’ cat-ketch Rare boat, one of only 16 made by Marine Concepts. Similar to a Rob Roy yawl. Super light, super strong carbon-fiber masts on a tabernacle can be raised/lowered single-handed! Current registration, title in hand Galvanized trailer 9.9 HP Nissan The hull and deck are in great shape, but the boat needs interior work. Water has sat in it, and there is delaminating plywood. This project is best for someone who can work with fiberglass and epoxy, but the boat can be sailed as it. The cockpit needs paint. Beam 8’ Draft: 19” to 5’6” with centerboard down The boat weighs around 3700 lbs., including 1200 lbs. of ballast Sail area 290 sq.ft. Located in Houston, TX $14,998

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

  • SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

  • D: Displacement of the boat in pounds
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

This listing is presented by SailboatListings.com . Visit their website for more information or to contact the seller.

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  • Sailboat Reviews

Here's a skinny little pocket cruiser for two that's back in production after a three-year hiatus. She is quick on a reach but, predictably, not very adept at upwind sailing.

When she was introduced in 1983, the Rob Roy 23 captured all the popularity that Ron Johnson, her Florida builder, could handle. Marine Concepts, Johnson’s small custom shop, built and sold 85 in less than 10 years. The Rob Roy was then retired in favor of Johnson’s Sea Pearls (Sea Pearl 21, Sea Pearl Tri-21, and Sea Pearl 28.)

Rob Roy 23

Now the little cruiser is back, with the first new ones being launched in 1998, for “about what the last one we built cost—around $26,000 complete,” Johnson said when we talked to him in late 1997.

We wondered what sort of 23-footer could command that price. In 1983, it was the only trailerable canoe-stern yawl in town. Its appeal, however, goes beyond novelty. This is a boat with character: She looks salty; sails well with working sails alone; and she provides accommodations for two. Simplicity, from a space-saving centerboard to a “hardened” kick-up rudder, from an unstayed mizzen mast to a tabernacle-mounted mainmast, is a watchword. The Rob Roy can be launched at a ramp and is easily beached due to its 1′ 7″ draft with the board up. Owners have cruised her for weeks at a time and routinely cross the Gulf Stream and other formidable chunks of open water.

On the other hand, sitting headroom and moderate beam limit the space below, even for a pocket cruiser. There’s no shortage of boats in her size range with bigger cockpits. The canoe stern steals space, and an outboard well has its pros and cons.

To answer the question of her popularity, one must look deeper. As is our practice at Practica Sailor , we asked the owners about trailering ease, outfitting, durability and her woeful forays into PHRF racing.

As we learned, the Rob Roy not only created a minor buying frenzy when she appeared, it won a group of vocal and committed owners.

“This is THE boat,” said one owner. “I don’t want anything bigger and I can’t imagine anything better.”

Designed by Ted Brewer, the Rob Roy was inspired by the turn-of-the-century adventures of John MacGregor. His little 20-foot canoe yawl was so portable that he carted her aboard trains, yet she was tough enough to let him leave the protection of the River Humber and explore the British Isles from end to end. MacGregor not only named his freedom-giving yawl after his famous ancestor, he also inspired the Humber Yawl Society of which designer Ted Brewer is a member.

“I admire those boats and their voyages,” Brewer told us. “Lord Baden-Powell, who started the Boy Scouts, was president of the group early on. The Humber yawls were all canoe-sterned with plumb ends. They got bigger than the original Rob Roy, up to 24 or 26 feet. They had gaff or gunter rigs. My Rob Roy design owes a lot to their spirit but not a great deal to their specifics.”

Brewer’s career began in the late 1950’s. He’s worked on both the East Coast and West Coast (he now practices in Lyman, Washington), and his designs range from race boats such as Storm and American Eagle to cruising boats like the Panoceanic 46 and Quickstep 24.

“With the Rob Roy,” he said, “I was trying to keep the rig manageable and still have her sail well, to give her enough beam to stand on her feet but not so much that she’d be slow, to stretch out her design waterline, build in a lot of form stability, and still have her look handsome. Design is always a series of tradeoffs. In a boat of this size that’s especially true. The time that I spent in the navy sailing 26-foot open whale boats showed up in the design, too. Early in the design process I decided that I very much wanted one of these boats for myself. That tends to make you pay a particular kind of attention.”

What he came up with is hardly your average boat, but she is nevertheless a boat that addresses the needs of the average sailor. The 6′ 6″ cockpit seats are straight and comfortable enough to take a bit of the curse off having only two berths below, but the Rob Roy 23 is essentially geared to support two adults, and only two. That decision had its greatest impact on the interior arrangement, but other aspects of the design—like cockpit size, design displacement, and sail plan—reflect it, too.

One owner said, “I would have to rate the design as first rate, especially the double-ended look, the centerboard raising into the keel, the deep cockpit, the sail leads and hardware arrangements.”

Construction

The original Rob Roys were built of fiberglass with balsa coring in hull and deck. Johnson now builds his standard Sea Pearls and his new Rob Roy with foam cores. He says that the new foams have improved resistance to water migration and superior temperature and noise insulation.

“But,” he said, “we’re essentially a custom shop and the customer can get whatever type of core he wants.” One owner reported that the core beneath the mast step was squashed when he tightened his rig. “That sort of thing should never happen, but it did,” Johnson admitted. “We fixed it, but whether the core is foam or balsa a high-compression spot like that should always be solid glass, and in the Rob Roy, it is.” Despite that experience (or maybe because of Johnson’s handling of the problem), the owner in question rates the construction and finish of his Rob Roy as “excellent” and added, “I do not know of trailerable boat that I’d rather have.”

Rob Roy 23

“We use the best gelcoats,” Johnson said. “We’ve found antique colors that don’t absorb heat or radiate much glare. ‘White sails’ is our standard deck color or for an additional $280 you can have a two-tone deck where the non-skid portions are done in ‘Whalebone’.” Hull colors are a no-cost option. Behind the gelcoat comes a barrier coat of vinylester resin. We use Stitchmat (a fabric made by stitching layers of mat together on the bias) to prevent print through. The remaining hand-laid rovings that make up the laminate are wetted out with polyester resin. The Rob Roy has extra layers of rovings in the keel and trailer impact areas.”

There is a small interior glass unit, very similar to what, in larger form, might be called an interior pan. It forms part of the sole and locates the bulkheads and furniture. It’s not structural. The bulkheads and furniture are double-tabbed to the hull. The bulkheads and furniture are faced with teak. Trim is solid teak. The archway in the central bulkhead is ringed with teak and is supported by solid pieces of teak that reach to the keel.

“You couldn’t build boats like the Rob Roy anymore,” one owner said. “The wood and the finish below would make it too expensive.”

“Marine Concepts provides excellent quality in basic construction. No problems with blisters after 12 years,” reported another.

One construction feature, though, that has been changed with the new Rob Roy is the make-up of both the centerboard and the rudderblade. Said Johnson, “The old centerboard was an aluminum plate and the old rudder was a sandwich with an aluminum plate in the middle. Boats that were kept in the water experienced electrolytic activity. due to the stainless steel weldment at the bottom of the rudder shaft. Owners can and should protect those blades with zincs if they keep the boat at the dock or mooring instead of on a trailer.”

The original board was hung from a pivot pin assembly that fits in the forward end of the centerboard slot but remains external to the hull so it won’t cause leaks but will allow the board to be removed for repair or even cleaning. The original board was shaped like an “L” lying on its back. The foot (or short side) of the “L” is housed in an abbreviated trunk, but forward of the companionway the remainder (or long side) of the board is housed entirely below the sole. You control the board via a simple, one-part tackle from its uppermost after- corner. The configuration leaves the saloon free from an obtrusive trunk.

The kick-up rudder connects to an angled stainless shaft. The shaft works well without bearings and has proven to be durable. The point where the blade joins it, however, seems thin and vulnerable. The joint is (just) protected by the keel in front of it. Neither Johnson nor Brewer has heard of a rudder being damaged. It appears as though a grounding in reverse or even maximum rudder torque might change that box score, but then steering loads on a moderately rigged 23-footer aren’t that extreme.

The blades on the new boat are made of glass. The new board probably will have a foil-shape.

The hull/deck joint has changed. The first 85 boats were built with an inward-turned flange molded into the hull. Johnson has now gone to an outward-turned flange “because it’s easier to finish off and make leak-proof.” He will still use 3M 5200 and mechanical fasteners to make the joint and will still cover it with a solid caprail. “The Rob Roy record on deck leaks is excellent,” he said, and the owners surveyed agree.

One owner had a persistent problem with a companionway leak. “It appears, after much back and forth, that there was no bedding in the original joint,” Johnson told us. “We fixed the problem but it cost me time and money to get it sorted out.”

During Rob Roy’s life, her bowsprit and boomkin have usually been 2″ x 6″ and 2″x 4″ balks of teak respectively. “I’ve built beefier ones for people that wanted them,” Johnson said, “but I never quite saw why.” Johnson remembers. Several owners expressed the wish for a detachable bow sprit to make trailering simpler and to reduce her “marina length” from a length overall of 28′ 8″ to her on deck length of 22′ 8″. “I used to do that,” Johnson recalled. “We’ve simplified by making the spars permanent, but if an owner wanted removable ones it’s easy to do.”

The Rob Roy 23 carries 900 lbs. of ballast (including the weight of the centerboard). The shallow keel is filled on either side of the centerboard trunk with small chunks of lead held in place with casting resin. A small sump is left in the after end of the keel.

“I must admit that I designed the Rob Roy accommodations for myself,” Brewer said.

The head is forward and benefits in terms of room and privacy. It’s not ideal for use at sea, however. An optional plan moves the head to port and inserts a child’s berth to starboard. Aft of the single bulkhead is the galley—stove to port, sink to starboard. Opening portlights provide ventilation. The saloon consists of settee berths that extend under the cockpit.

They are low enough and the house sides are wide enough to make for comfortable, “no-slouch” seating throughout. The shelves outboard of the berths are convenient but minimal and would benefit from taller fiddles. Four cockpit lockers and a raft compartment below the cockpit sole make on-deck stowage one of the boat’s strongest suits. Below, the majority of stowage is forward.

The centerboard trunk is capped with solid teak and extends just a foot into the interior from the companionway. “One or two can live aboard for one or two weeks” was the refrain from owners. “Having the galley forward took some getting used to, but now I like it,” said one.

Freshwater capacity is 14.5 gallons and there is a holding tank forward.

The berths convert, via an insert, into a platform double. “The boat is unparalleled for two—good bed, good head, great lighting,” said an owner after cruising the Rob Roy (his seventh boat) for five years.

Marine Concepts offers a trailer with the Rob Roy that costs $2,850. It comes with dual axles and is made of galvanized steel. It has 14″ wheels, surge brakes, bearing buddies, a tongue jack, and a spare tire. One owner figured his towing weight to be “about 4,200 lbs.” Over the years, some owners have mentioned trailer problems, to which Johnson said that he has changed vendors.

Rob Roy 23

The standard trailer comes with custom-made beds spaced and angled to suit the boat. Given the boat’s draft, the trailer must be at least partially submerged—weight placement is critical to an easy retrieval as well as a comfortable tow. No owners have yet nominated trailering as a highlight of their Rob Roy experience.

Performance

The Rob Roy 23 is built to carry an 8-hp. Honda 4-stroke outboard in a well. (Some boats have been modified to accept a saildrive, an inboard powerhead, either gas or diesel, on a fixed vertical drive unit.) The outboard remains fixed in the well when the boat is under sail, so propeller drag is greater than if it were on a bracket or retractable. The convenience of having power on demand and the efficiency of a propeller that is mounted where it will provide good thrust even while the boat is pitching in head seas somewhat offsets the loss in sailing performance. The motor is mounted just aft of the keel which helps to diminish its parasitic drag under sail but presents the possibility of cavitation from running in aerated water under some powering conditions. The exhaust ports built into the well have proven satisfactory but many owners have increased the standard air intake (by replacing the solid well cover with a grating or adding cowl vents or cutting holes for ducts in the coaming) to relieve the tendency of the outboard to starve under load.

There is room for two 6-gallon fuel tanks in cockpit lockers.

Yawls are a rarity on the new boat market but the Rob Roy isn’t totally alone. Garry Hoyt recently introduced the Alerion Express 36 with a yawl rig. By adding a mizzen, Brewer increased the Rob Roy’s sail plan to 255 square feet. That results in a snappy sail area/displacement ratio of 20.8. Perhaps that is the root of a PHRF rating for the boat that has caused the few owners who have raced her to bemoan the experience. That sail area works fine on a reach, but upwind any mizzen, especially one set as close to the main as the Rob Roy’s, suffers from mainsail backwind. Downwind the mizzen works okay but it steals air from the main. It’s not surprising that racing yawls went out with black and white TV.

Balance, versatility, and small, easily managed sails are the virtues of the yawl rig, and the Rob Roy enjoys them all. On the flip side, this sail plan prevents the boat from accelerating as fast or developing as much horsepower as she might with the same area of sail divided into two larger units—or even lumped into one. Brewer offset this disadvantage in a number of ways. He kept the waterline beam on the slim side, cut back the forefoot, and faired the waterlines to make the hull very easily driven. The Rob Roy is a relatively light boat, even with two adults aboard. She has a minimum of wetted surface, especially with the board up. These factors make her a very respectable light air performer.

Sailing in a Buzzard’s Bay sou’wester cycling from 16 to 20 knots we saw the Rob Roy at her best. With three large men sitting to weather she cut through the chop heading upwind without dipping her rail or spilling wind from her sails. Dousing the mizzen helped her stand a bit straighter, but when we set it again it was hard to tell what difference it made. We rolled it around its spar and left it furled. Not as close-winded as sharper, deeper boats might be in waves, she picked up markedly when we cracked her off to 38° to 40°. We tacked consistently through 90°. It’s true that when you reef the center of effort moves forward and we found it nice to balance the boat by re-setting the mizzen. Across the wind we tried jib and mizzen alone and were rewarded with bursts approaching its 6- knot hull speed. Even with the wind near the top of its range we handled all sails by hand and found no need to crank on the winches. One owner described his boat as “extremely seaworthy,” noting that “She’ll lay over but she picks up stability as she goes.”

Hard bilges give the boat good initial stability. The flared hull, efficiently placed ballast and moderate sail plan all make her progressively stiffer as she heels. She’s a pleasing boat to sail in a breeze—responsive yet resistant. The helm is light and by playing with the centerboard and mizzen you can get the boat to steer herself on most points of sail. She’s dry for a boat of this size and has a predictable and deliberate motion even in a chop. There isn’t much room for that third person in the cockpit, however.

Conclusions

The Rob Roy has an appealing look all her own and some features that make good sense in a pocket cruiser. Limited accommodations means maximum space for two persons and keeps both stowage and performance capabilities from being overloaded. Her small cockpit is fine in a seaway and adequate for two but cramps her versatility as a daysailer. The yawl rig is simple and provides a built-in riding sail and virtual steer-by-the-sails control. She doesn’t have enough working sail area to be quick in light or even moderate air, but she can be sailed without winches and she handles heavy weather very well.

Marine Concepts works hard to keep its owners happy, but don’t look to Ron Johnson for much innovation. He seems almost the antithesis of Stan Spitzer, whose Rhodes 22 we reviewed in the August 1 issue. “He hates gadgets,” one owner said of Johnson. He builds conservative boats and has shown that he stands behind them. The Rob Roy’s design wrinkles, construction, and outfitting have all helped her become one of the few “offshore trailerables” available.

Price is a bit more than what Johnson predicted: $28,000, which includes sails, portable toilet and 8-hp. Honda four-stroke outboard. For those interested in a used model, the 1983, which originally sold for $16,000, is worth just $5,650-$6,500 today. A 1988 model, according to the BUC Research Used BoatPrice Guide , goes for $11,600-$13,200.

RELATED ARTICLES MORE FROM AUTHOR

where can we get detailed schematics of Rob Roy Yawl ?

Yes, I’ve looked everywhere online for some kind of schematic of my 1987 Rob Roy 23’. I even tried to contact Ted Brewer the designer, his web page says you can get owner sets for production boats. The phone number isn’t good and email is full.

I may be able to help. I bought a 1987 Rob Roy 23 last August. It’s now in winter storage, but I’ve been looking thru a box of paper work that came with the boat. It appears to be a complete set of plans & specifications.

Hey Brad, sorry i didnt get back with you sooner. I felt like this wouldnot be answeredi guess. I just subscribed to practical sailor and found your response. So sorry to hear Ted Brewer passed. Thank you for that information. Would love to get copy of Rob Roy schematic! Do you raise your mast by hand or use mechanisms. Everyone says we should be able to just walk the mast up usinf rolling furler jib as leverage. It seems risky to me?

Btw… Ted Brewer passed away last year. There was a nice tribute to him in Good Old Boat magazine.

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28' marine concepts sea pearl 28 other.

28' Marine Concepts Sea Pearl 28

ARCHIVED: This is a previously listed vessel and is no longer offered for sale If you would like assistance locating a similar vessel, Click Here to contact the listing broker.

This is a very unique shallow draft, trailerable, cat ketch.�  Built by Ron Johnson at Marine Concepts on a Frances Herreschoff design.

She has free standing carbon fibre masts set in tabernacles. The masts only weigh 40 lbs. , so one person can raise and lower them easily. And no standing rigging !�  This makes low bridges navigable and enables inside storage.� 

She has fully battened bat wing sails with lazy jacks .�  With rudder and centerboard up , she draws only 18 inches.

She is a double-ender with 10 HP motor in motorwell for a streamlined look.

Solar panels cover all electronic needs, including refrigeration.

Includes 91/2 solid wood floor zodiac with 5HP Nissan ,and all aluminum Rolls axle trailer. Owner will install new tires or make an AS IS offer.� 

Owners are motivated, make an appointment to view this fun, versatile vessel.� 

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LOS: 28' 0"

Beam: 8' 0"

Draft: board up-19" / board down- 5' 6"

Ballast: 1200 lbs.

Dry weight: 3750 lbs.

Brand: Yamaha

Model: 2 stroke

The interior of the 28 can sleep four.

The galley slides out over the starboard berth,

Portable refrigerator/freezer

The head is under the V-berth w/holding tank

Headroom is 5' 1"

The Sea Pearl carries 50 gallons of water.

She is water ballasted and a double ender.

Unstayed cat-ketch rig� 

Sails are original but have been reconditioned

Lazy Jack System on both sails

Outboard powered- 10 hp

Plow anchor w/rode

Dodger and bimini

Sail covers

Man overboard life sling

Dock lines and fenders

Aluminum trailer dual axle-1980

Zodiac 91/2 ' dinghy

Dinghy motor-Nissan 5 hp

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Truly Rowable Camping Sailboat

Discussion in ' Sailboats ' started by Admiral Ackbar , May 12, 2012 .

Admiral Ackbar

Admiral Ackbar Amphibian

Hi all, I am a longtime lurker, first time poster (thanks for many hours of informative entertainment as well as some truly epic squabbles). I'm looking for a sailboat for me and the misses to use without an engine on the Maine Islands Trail, the Great Lakes, etc., but I keep hitting a dead end. No Atlantic crossings with this one, but it will occasionally be used in some semi-unprotected waters by a semi-novice crew as a camp-cruiser. So, the issue for me has been finding the balance between a stable, ballasted, sailboat and a boat that can be rowed rather than motored for exercise/torture or when coming into port. I'm looking for as much of the following as possible: 1) Ballasted but light enough to row--probably some type of water ballast 2) 16 to 20 feet give or take a foot or two 3) Readily available on the used market for under $7K (i.e. a production boat) 4) Capable of sleeping two onboard with some degree of comfort 5) Preferably something with a headsail (mostly for practice as we would like to step up to a cutter someday) 6) Some sort of a cuddy or cabin would be great, but I'm also realistic in knowing the options will be limited if I also intend to row the thing sometimes The Sea Pearl 21 comes close, but I hate the rig and it will be tough for two to sleep onboard. Something like the Mud Hen 17 could work (maybe fill sand bags for ballast when needed), but it's pretty pricy on the used market for what it is. Any other ideas? Thanks, Eric  
Oh yeah . . . and an appropriate amount of built-in floatation is pretty much a must-have (yet oddly enough doesn't seem to be too easy to find).  

CutOnce

CutOnce Previous Member

I'd contact Graham Byrnes at B&B Yacht Designs - he specialises in your target usage. Since you are looking for a bargain, he might be able to point you to a used boat or a demo boat looking for a home. -- CutOnce  

bpw

bpw Senior Member

I have seen people rowing West Wight potters, seemed to go pretty well. Its amazing what you can row once up to speed, I regularly scull my 12,000 sailboat around.  

sharpii2

sharpii2 Senior Member

for around 7k you might have to either build your own boat or retro fit an older existing boat. A 'weekender' type sailboat, about 14 to 18 ft long, with a cuddy cabin and a 'V' berth might meet your needs. Most have a 3/4 fractional rig which, with some ingenuity, can be raised and lowered even after the boat is launched. I used to routinely raise and lower the mast of my Siren 17, while it was in the water. With such a boat, your only job would be setting up a passable rowing station. I like the idea of a short sweep. This is a single oar that goes over one side and is kept quite short, to keep the boat turning moment down. The sweep must be used with the rudder and its efficiency is probably somewhere between that of a paddle and a proper set of oars. The advantage is the shorter sweep will be much easier to stow than a yulow or a proper set of much longer oars.  
oops. wrong button.  
Thank you all. I am looking a little more seriously at the Potter 15. It's not really ballasted other than the CB, but should be stable enough for its intended purpose. Potter owners have come up with some unique rowing stations for them, and I've read that they are actually pretty enjoyable to row. Plus, it doesn't hurt that they're available and inexpensive on the used market.  

DCockey

DCockey Senior Member

Admiral Ackbar said: ↑ Hi all, I am a longtime lurker, first time poster (thanks for many hours of informative entertainment as well as some truly epic squabbles). I'm looking for a sailboat for me and the misses to use without an engine on the Maine Islands Trail, the Great Lakes, etc., but I keep hitting a dead end. No Atlantic crossings with this one, but it will occasionally be used in some semi-unprotected waters by a semi-novice crew as a camp-cruiser. So, the issue for me has been finding the balance between a stable, ballasted, sailboat and a boat that can be rowed rather than motored for exercise/torture or when coming into port. I'm looking for as much of the following as possible: 1) Ballasted but light enough to row--probably some type of water ballast 2) 16 to 20 feet give or take a foot or two 3) Readily available on the used market for under $7K (i.e. a production boat) 4) Capable of sleeping two onboard with some degree of comfort 5) Preferably something with a headsail (mostly for practice as we would like to step up to a cutter someday) 6) Some sort of a cuddy or cabin would be great, but I'm also realistic in knowing the options will be limited if I also intend to row the thing sometimes The Sea Pearl 21 comes close, but I hate the rig and it will be tough for two to sleep onboard. Something like the Mud Hen 17 could work (maybe fill sand bags for ballast when needed), but it's pretty pricy on the used market for what it is. Any other ideas? Thanks, Eric Click to expand...
DCockey said: ↑ Sleeping two onboard with some degree of comfort depends on: 1) Your personal definition of comfort. 2) Size of the people involved. 3) How much room each person needs around themselves. Think about how you will actually use the boat. If you will be sleeping aboard then where will you put the gear, etc that normally occupies the space used for sleeping? If you want water ballast consider modifying a boat to add it. For Maine Island Trail you either want a boat small and light enough to pull ashore or a boat you can sleep aboard. In some parts of the country there are a reasonable number of O'Day Daysailors on the used market. Consider a yuloh or single oar off the stern for sculling. Click to expand...
Admiral Ackbar said: ↑ That said, I'm starting to lean towards a cabin-type boat such as a Potter 15, Montgomery 15 or 17, Com-Pac 16, etc. as a logical stepping stone towards getting a big cutter someday. I had some major reservations about how tough these would be to row, but reading about Larry Pardey's experiences rowing 9 tons plus at 2 knots put my fears to bed. Surely I can row against a reasonable current in something 1/10th that size. Some good reading: http://byyb.org/gaffrig/200510/article larry pardey.htm Click to expand...
Interesting comments Cut Once. But both of those designs are raid boats. They are intended to be sailed along shore in sometimes challenging conditions. The Potter, and others of its ilk (such as the Siren 17 I used to own) have greater blue water pretensions. Using them as a day sailor is bound to disappoint. But using them as a training boat for a larger real blue water boat, makes a certain amount of sense, even after you factor in the faults you mentioned. The Siren 17, I used to own, for example, could sail at a consistent 5.5 kts, once I learned her ways and got her a drifter. The trimming problem you mentioned, I did experience. Once I got her to steer herself, I often went below to pee. I found she seemed to sail faster then. As a training boat for future blue water cruises, she may not have been too bad. If I had a significant other, at the time, who was into this, I would have set up a watch system, where one tends the boat while the other rests below. This way, the boat can sail 24 hours for an indefinite period of time. Perfect for training for future blue water voyages in more capable boats. Certainly, you can do the same with a larger raid style boat, and go faster too. But its not the same as having to work around a house, traversing narrow side decks, and having to sail your way out of trouble (the auxiliary is all but useless in anything but a dead calm). All are skills one must master, if one is to make a blue water voyage one a typical blue water capable monohull. It's interesting to note that Thom Firth Jones and his wife started cruising in raid style boats (a Hobie Cat and a sailing canoe), then went on to cruising multihulls, making a good number of nearly routine blue water voyages in them. But I think they would be first to admit that, for much longer voyages (further than Bermuda, say), they would need either a larger multihull (theirs were usually in the under 30 ft range) or a much pokier monohull.  

philSweet

philSweet Senior Member

I wouldn't worry too much about trying to prepare for a future keel boat and do motorless cruising now. That's kind of a non-sequitur. If you want a starter keelboat cruiser, then get a small one with all the features/hassles and learn to deal with them on a small, inexpensive scale. You can choose from thousands of 26-28 auxiliary keelboats for under $5000 at the moment. 26-28 foot is a bit awkward because it's too small to carry a dink and too big to beach, but it will carry a small kayak okay. If you want to set one up just as you stated, I think a modified Core 17 would be very good. A bit of water ballast, more flare (smaller beam at WL), and mods to accommodate rowing. Generally depower the rig and lower hull resistance and make the power disparity between sail and oar somewhat smaller. The foils on all B&B's boats look to be a bit small to my eye. I wouldn't make them any smaller when I lessened the rig. And for crying out loud, use a half-wishbone for the sprits, not a closet pole. There seems to be a good bit of interest in this spurred on by the Everglades Challenge. I'm fiddling around with something similar at the moment as well.  

messabout

messabout Senior Member

Consider something like a Lightning or Thistle that is depowered. There are plenty of them around that can be bought cheaply enough. A few years back I bought a dereliict Thistle for $75. I depowered it with a free standing rig from a Finn, removed the characteristic Thistle gratings and some of the un needed gadgetry. It made a superior beach cruiser with enough interior space, rough water ability, a good turn of speed, easily trailerable, and it was a great gunk holer that could float in eight inches of water. I never rowed it but it would scoot along nicely with a sculling oar.  

Squidly-Diddly

Squidly-Diddly Senior Member

I had a thread about similar size multi-use boat, but mine was more of a motor sailer. Like a "lobster dory". I'll try to dig it up later. Here it is.... http://www.boatdesign.net/forums/bo...5hp-outboard-planing-sailing-dingy-39732.html I was thinking mostly using sail for tent for most camping, or using the micro-cuddy. More of a utility/work/hunting-fishing boat.  
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scoob

scoob Junior Member

Admiral Ackbar: have you looked at the SCAMP (small craft advisor magazine project)? http://smallcraftadvisor.com/component/content/article/361 she is a John Welsford design with some additions by Kees Prins. her sailing ability is amazing. she is stable and faster than you would think. i've sailed the boat and am very impressed. intentional, under sail, capsize test - http://www.youtube.com/watch?v=wRZNWAkdkXM (notice how hard it is to get the boat to go over) this is an at the dock capsize test without the water ballast tank filled - http://www.youtube.com/watch?v=du9lvJNVqnk the person doing the testing is Howard Rice. he is a life-long sailor, mostly in sailing ocean kayaks. Howard has rounded Cape Horn, twice, on a kayak. besides the 'build it yourself' kit, or from plans, available from Small Craft Advisor, Gig Harbor Boatworks is making a fiberglass SCAMP. -- you can find a good quality M15 or M17 on the used market for about $5000. price goes down depending on condition, outboard, trailer, etc. the M17 is a better boat, cabin wise, than the M15 for two people ... mainly because there is just enough sitting headroom on the quarter berths (need the two quarter berth version for two to sit below, not the galley version). the M17's weight is 1600# (if built by Jerry Montgomery) before you load people and stuff. the M15 is much lighter, about 800# if built by Jerry Montgomery, has a more comfortable v-berth and porta-potti setup than the M17 (no compression post), but no sitting headroom. the M15 also has positive flotation. i know some people that have tried to set up a rowing station or sculling oar on the M17 and M15 ... most never use the option after trying it once. most use a 2HP outboard on the M15 and a 4 or 5 HP outboard on the M17. -- there is also a new Jerry Montgomery design available ... no used boats on the market yet ... the Sage 17. Sage 17 is 1300#, has positive flotation (option), and has sitting headroom cabin for two on two seats and a compression post free v-berth. --  
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Go to

SeaPearl 28, 1993 at [email protected]

SeaPearl 28, 1993 sailboat

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  2. 1991 Marine Concepts Sea Pearl 28, Port Charlotte United States

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  3. 1993 Marine Concepts Sea Pearl 28 sailboat for sale in Colorado

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  5. SeaPearl 28, 1991, Stone Mountain, Georgia, sailboat for sale from

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  6. 1993 Marine Concepts Sea Pearl 28 sailboat for sale in Colorado

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VIDEO

  1. Sea Pearl 21 Drone

  2. Sea Sprite 23 Weekender

  3. Incredible solo sailing afternoon on a Sea Pearl 21 cat ketch

  4. My Sea Pearl Tri

  5. Pearl 82, as described by her designers

  6. Pearson 28-2, Sailing Clips

COMMENTS

  1. SEA PEARL 28

    A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising. Derek Harvey, "Multihulls for Cruising and Racing", International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls.

  2. Perry Design Review: SeaPearl 28

    The SeaPearl 28 combines portability with 19 inch draft, an unstayed cat-ketch rig, water ballast and outboard power to make a unique product. In fact, the boat was designed around a charter service already using the Sea Pearl 21 as their base boat. The SeaPearl 28.

  3. 1993 Marine Concepts Sea Pearl 28 sailboat for sale in Colorado

    Great sailing boat. Sturdy under sail. Two light weight free standing carbon fiber masts that can be put up in 15 min. Large cabin with queen size berth. Stove & sink. ... This Marine Concepts Sea Pearl 28 : Added 08-Jul-2015 Marine Concepts Sailboats Marine Concepts 28s Colorado Marine Conceptss. Featured Sailboats: Home. Register & Post. View ...

  4. Sea Pearl 28

    Sea Pearl 28 is a 27′ 7″ / 8.4 m monohull sailboat designed by Ron Johnson and built by Marine Concepts starting in 1990. ... The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more. Formula. D/L = (D ÷ 2240) ÷ (0.01 x LWL)³ D: Displacement of the boat in pounds. LWL ...

  5. Sea Pearl 28

    Colin Archer Finnish Pilot Boat. Corbin 35. Corbin 39. Corbin 39 CC. Crealock 34. Crealock 37. Crealock 44. CT-34. CT-37. CT-38. CT-44. CT-44 Pilothouse. Dartsailor 27. Dartsailor 30. Dovekie. Dreadnought 32. EO 32. ... If you are not a member, register to add a Sea Pearl 28. Page created by Jeff on January 19, 2018 - 3:16pm.

  6. SEA PEARL 28: Reviews, Specifications, Built, Engine

    1 of 2. If you are a boat enthusiast looking to get more information on specs, built, make, etc. of different boats, then here is a complete review of SEA PEARL 28. Built by Marine Concepts (USA) and designed by undefined, the boat was first built in 1990. It has a hull type of Keel/Cbrd. and LOA is 8.43. Its sail area/displacement ratio 19.28.

  7. Sea pearl 28

    The Sea pearl 28 is a 27.66ft cat ketch (unstayed) designed by Ron Johnson and built in fiberglass by Marine Concepts (USA) since 1990. The Sea pearl 28 is a light sailboat which is a good performer. It is reasonably stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat. There is a short water supply range.

  8. Review of Sea Pearl 28

    The Sea Pearl 28 is equipped with a centerboard keel. A centerboard keel is a pivoting lifting keel, allowing to sail both coastal and inland waters. The boat can enter even shallow marinas as the draft is just about 0.48 - 0.58 meter (1.57 - 1.87 ft) dependent on the load.

  9. 2001 Marine Concepts Sea Pearl 28

    The 2001 Marine Concepts Sea Pearl 28 sailboat has a fiberglass hull and has an overall length of 27.67 feet (sometimes referred to as LOA). The width (or beam) of this craft is 80 inches. This boat is rigged as a Ketch. The sail area for the sailboat is 290 square feet. The displacement for the boat is approximately 4200 lbs.

  10. Sea Pearl sailboats for sale by owner.

    Sea Pearl preowned sailboats for sale by owner. Sea Pearl used sailboats for sale by owner. Home. Register & Post. View All Sailboats. Search. Avoid Fraud. ... 28' Sabre Yachts Sabre 28 MkI Trumansburg, New York Asking $12,000. 25' Catalina 25 Anderson SC, South Carolina Asking $6,000. 26' McGregor 26M

  11. SeaPearl 28, 1991, Stone Mountain, Georgia, sailboat for sale from

    Superbly outfitted Cat-Ketch. This SeaPearl 28 is a 1991 sailboat built by Marine Concepts Sailboats in Tarpon Springs Ready to sail the shallow waters as well as big seas. Belle is a proven cruiser, with tours of the entire Gulf coast. She is 27 feet 10 inches overall. The draft with her stub keel is 19 inches with board up.

  12. Sea Pearl Cat-Ketch 28 ft., 1991, Houston, Texas, sailboat for sale

    Sea Pearl Cat-Ketch 28 ft., 1991, Houston, Texas, $13,980, Price reduced 7/20/18 to $10,990, Taken off market 8/15/18 ... Scam Warnings: Texas Lakes: Sailboats Wanted: Contact: Free Sailboat Ad: Go to Sailing Texas classifieds for current sailboats for sale . Sea Pearl Cat-Ketch 28 ft., 1991 Made by Marine Concepts in Tarpon Springs, FL Located ...

  13. Sea Pearl 28, 1993, Castle Rock, Colorado, sailboat for sale from

    Go to. Sea Pearl 28, 1993. Cat Ketch. Most known as a Sea Pearl 28, they only built 18 and are now building Sea Pearl 21s. Builder is Marine Concepts. The boat is in excellent condition. It was build as a easy boat to trailer having 2 Mast that can be put up in 10 min each. They are light weight Carbon Fiber. No spreader, no shrouds free standing.

  14. 1991 Marine Concepts Sea Pearl 28 cat-ketch

    1991 Sea Pearl 28' cat-ketch Rare boat, one of only 16 made by Marine Concepts. Similar to a Rob Roy yawl. Super light, super strong carbon-fiber masts on a tabernacle can be raised/lowered single-handed! Current registration, title in hand Galvanized trailer 9.9 HP Nissan The hull and deck are in great shape, but the boat needs interior work.

  15. Rob Roy 23

    The Rob Roy was then retired in favor of Johnson's Sea Pearls (Sea Pearl 21, Sea Pearl Tri-21, and Sea Pearl 28.) Rob Roy 23 Specifications Now the little cruiser is back, with the first new ones being launched in 1998, for "about what the last one we built cost—around $26,000 complete," Johnson said when we talked to him in late 1997.

  16. 28' Marine Concepts Sea Pearl 28 Other

    Beam: 8.00'. Year: 1991. Model: Sea Pearl 28. Broker: Pier One Yacht Sales 1200 W Retta Esplanade #43 Punta Gorda, FL 33950 (941) 639-7777. ARCHIVED: This is a previously listed vessel and is no longer offered for sale If you would like assistance locating a similar vessel, Click Here to contact the listing broker.

  17. 1993 Marine Concepts 28 Sea Pearl sailboat for sale in Texas

    1993 28' Marine Concepts 28 Sea Pearl sailboat for sale in Dry Dock Texas

  18. Marine Concepts Seapearl 28 boats for sale

    Deltaville, VA 23043 | Norton's Yacht Sales, Inc. Check availability. <. 1. >. Find 28 Marine Concepts Seapearl 28 boats for sale near you, including boat prices, photos, and more. Locate Marine Concepts boat dealers and find your boat at Boat Trader!

  19. Shallow-water Beach Cruising in a Small Sailboat

    Another day, another adventure for this thin-water sailor. Beach-cruising or sailing-camping boats come in all shapes and styles, ranging from one-design sail trainers like the Flying Scot, Hobie 16 and Wayfarer 16 to more cruising-oriented craft, like the Hobie Mirage trimaran series, the NorseBoat line or the UK-built Cornish Shrimperseries.

  20. Seapearl 28, 1992, Salado, Texas, sailboat for sale from Sailing Texas

    2 anchors with ground tackle. Much, Much more. Shoal Keel with centerboard - Draft is 5'6" board down and will sail in 20" with board up. Beam is 8' for ease of trailering and it weighs only 3800# [1200# Ballast] More Photos & Specifications available. SOLD. Seapearl 28, 1992, Salado, Texas, yacht for sale, sailboat for sale.

  21. Truly Rowable Camping Sailboat

    I'm looking for a sailboat for me and the misses to use without an engine on the Maine Islands Trail, the Great Lakes, etc., but I keep hitting a dead end. ... The Sea Pearl 21 comes close, but I hate the rig and it will be tough for two to sleep onboard. ... You can choose from thousands of 26-28 auxiliary keelboats for under $5000 at the ...

  22. Sea Pearl Sailboat Photo Gallery

    Sea Pearl Sailboat pictures, a collection of Sea Pearl sailboats with specifications and photos. Sea Pearl Sailboat Photo Gallery. Home: Lessons: Rentals: How To: Forums: ... SEA PEARL 28. 7/16/18, 1991 Sea Pearl Cat-Ketch 28 ft, Houston, Texas, $10,990: 9/14/14, 1991 Sea Pearl 28, Stone Mountain, Georgia, $15,000:

  23. SeaPearl 28, 1993, Kerr Lake, North Carolina, sailboat for sale from

    SeaPearl 28, 1993. Price $21,500.00. Location Kerr Lake, NC. Trailerable unstayed cat ketch rig with carbon fiber masts. A shallow draft centerboarder with very comfortable accomodations. Fresh water sailed and meticulously maintained for the past 18 years. LOA 27'8". LWL 24'7". Beam 8'00".