In 1977, while living in the little yellow house by the River Vaipoiri, a different boat came to paper and then lived on as a dream.
We had SEMINOLE anchored off the river mouth. She was a fine vessel, built with love and attention, cared for, and well sailed. When we started her we were sailing savvy but naïve about the sea. We chose to build a ‘traditional’ design, from cheap plans in a magazine. The Atkin’s ‘Ingrid’ design would turn out to be wet and slow, and after sailing her for several years there were endless thoughts of how to do it another way, even to the point of threats to take an axe to the interior and start fresh.
Patrick Humbert was my friend though all of the adventure beyond the end of the road. We lived the barefoot vagabond life and dreamed of new boats. His own was lost on a Tuamotu reef so his madness was driven by being boatless. We would spend lazy hours in deep discussion about making boats with the fewest moving parts, the simplest of everything, and even limited use of metal. West System was getting rolling around then and boats of laminated wood and epoxy were getting popular and easier to build. So we drew dreams of cargo space, deck living, shallow draft, up-the-river kind of craft. The junk rig was logical and would be cheap and could be repaired anywhere with just about anything you can find. There were asymmetrical lee-boards externally like Dutch canal boats. We even fantasized electric power or none at all. All a little crazy for 1977. (If you're interested in reading the story, there is a great book "Dear Mom, The Bare Chronicles.")
In 2014, an early sketch reminded me of all the reasons why Patrick and I had tripped out on the different concept. Lots of quick drawings evolved until the scale ruler and drafting sticks became necessary. Lines and sections could be used to develop a design from a crude but experienced guess. We drew and erased and worked up to a scale that helped make it easier to visualize. When it looked real enough, I called Jim Antrim because we had earlier meetings about other boat fantasies. He’s a patient fellow, and I knew there was no shying away from unusual design projects. Jim having designed Patrick’s TE MARAMA catamaran was a real connection also.
We found a fantastic guy, Cree Partridge, owner of Berkeley Marine Center, who was willing to build the Rosie G, and January 2019, molds were being made for the beginning process.
Outside ballast, cast lead for grounding
Modern junk rig with 300 lb carbon mast and engineered sail structure
Cockpit to galley/nav/dining same level feel. No ladders.
Forward flush deck
Scow bow 8’0” wide 2’0” back
Large deck hatches
Draft 4’0” (7’6” board down)
Displacement 20,000 lb
Ballast (cast lead) 7,500 lb
Sail Area 842 Sq Ft
In 2004, a red cloud kelpie was born in Western Australia. Samantha and Rosie came to Maui, Hawaii when Rosie was two in 2006. Rosie adapted to island life including sailing on SV Cornelia, and quickly took ownership. Over the nine years we had Cornelia, it became more difficult for Rosie to get on and off the boat and down below. Rosie wanted her own boat,
the SV Rosie G.
She wanted her own blog to take you on her boat building journey. She also wrote a book called Rosie's Perspective, Dog Only Knows.
Just click on the button below to buy it!
Rosie was getting on, like all of us. And like us, she wanted to get on and off easily, walk from the cockpit into her doghouse without climbing over anything, go "down below" in two easy steps.
Rosie had a great life, spending almost 10 years being on a boat. She passed over the rainbow bridge Saturday, 18 May 2019, the first day of her 16th year. While she isn't physically with us to see her boat get finished, she told us before she left, she would definitely be keeping an eye on the progress of her boat. Her ashes are sealed in the hull under the brass plate on the bow and in the keel. She is definitely part of her boat .
Rosie don't roll!
The SV Rosie G will be stable, go fast and be dry. And is roomy inside, plenty of places to find comfortable cubbies to snuggle into for a nap.
Designed by Jim Antrim and built by Cree Partridge of Berkeley Marine Center, it is easy to board from a dinghy or swimming. The hull and structures have the finish of a good quality commercial fishing boat built on a male mold using form core and vinylester resin.
Scow Bow provides a soft ride, dry decks, long straight waterlines, massive volume and high stability.
The main (and only) sail is a ‘junk’ style. The sail is very light with carbon battens from RBS Battens and head spar (under 150 lbs). Modern spectra sheets and halyards and ‘soft’ construction details make the sail easily set with the single electric/manual winch.
Instead of woven jute or hemp panels, bamboo battens, solid wooden masts, and coco fiber lines there is a sail made from varied weights of Dacron material, battens made of 100% carbon, a tapered carbon tube mast from GMT Composites with sheets, halyards, and control lines running in the lightest blocks and fittings. It’s very winglike and controllable, lightly loaded, all sheeting from the leech, full twist control with low tension.
The entire sail can be swung on the mast to ‘square it and balance the loading, thereby helping to balance the boat. A junk rig has few parts and low loads. It is uncomplicated and easy to fix anywhere, no rigging to fail, infinitely adjustable and makes totally aerodynamic sense if you understand all
power comes from angle of attack.
The ballast keel, from MarsKeel,
is 7405 lbs of pure cast lead with
3% antimony and keel bolts are
316 Grade Stainless Steel.
The keel can be grounded
and stand the boat.
The perfect grounding shoe.
The cockpit and the galley/nav/dinette are on the same level... no ladder... and the doghouse windows open to make the space airy when cooking, eating, and hanging about.
Volume forward in the beamy shape creates a huge space (appx 13’ x 8’) that can have any choice for use, from light cargo to private cabins.
A three foot square opening hatch brings the outside world in when at anchor, and serves to load large items if desired.
QT20 from Electric Yachts is the electric power plant (20KW) and has excess power for necessary maneuvering.
The Max Prop can be feathered for lowest drag, or tricked into staying in reverse, which will charge the MasterVolt batteries using the
motor regen capability.
At the core of the electric dream is a small fuelless generator made with Neodynium 52 magnets and copper coils. When there is a constant supply of electricity available there are endless options for comfort and safety.
We have eight 170W panels, four make 48V for the motor, and other four are divided to charge to separate 12V house battery banks.
In the bow, there is a 100W panel for the battery system that runs the windlass, forward cabin lights, headlights and washdown pump.
Aft there is a 50W panel to charge the battery system that runs the electric winch, compass light, stern light and cockpit 12V outlet.
All of ten our panels we bought from
All are run through Victron charge control which we can monitor through bluetooth.
A naval architect, Jim's design portfolio is one of the most diverse in the industry, and includes record-breaking custom multihull and monohull sailboats, popular production boats, wing-sail assisted motor-catamarans, and recently, a solar-powered unmanned electric craft. Always keeping an eye toward efficient innovation, Jim's expertise in composite engineering yields high-performing and weight-effective structures.
Berkeley Marine is the center of custom yacht construction in the San Francisco Bay Area. Racing yachts built at the yard are generating considerable buzz for their advanced designs, and for contributing to the rebirth of a local industry. The facility's dedicated, experienced design and construction team is the key to its success. Construction is led by long-time boat builder Cree Partridge, whose former company P-Squared Yachts, built dozens of high-performance racing yachts in Southern California throughout the 1980's.
For 38 years MarsKeel has united it's passion for sailing with it's vast technical experience supplying quality keels to custom yacht builders and sailors from around the world, from the United States to South Africa and Turkey. With over 100 million pounds of castings over three decades, their casting experience and metallurgical knowledge places MarsKeel Technology™ as the worldwide industry leader. Kevin Milne, Founder and President, has over 30 years of Metallurgical Casting experience, extensive knowledge of keel design and marine industry experience.
GMT Composites specializes in custom carbon solutions for any size sailboat, powerboat, or yacht. They have been building custom carbon composites since 1984; their range of projects is remarkable, and their experience is unmatched. From small decorative switch plates, to giant radar arches requiring absolute precision, their expertise can be applied to a huge range of custom carbon marine products.
Electric Yacht Pacific provides the finest affordable electric propulsion systems, complete systems engineered, built, tested and ready to install for boats from 2500lbs to 50000lbs. Electric Yacht Pacific has warranted quality marine systems with over 400 installations conversions from Alaska to California to Hawaii.
At Sun Powered Yachts we hope to inspire and
inform yacht owners on the benefits of going solar with SunPower and are here to answer your questions.
With a background in sailing & solar; and having lived off-grid for 9 years in Hawaii we have the knowledge to help you with your solar install. We continue to offer free solar consultations and have SunPower solar panels in stock in the USA to fulfill orders.
Aloha, Katie & Lyall
Legendary design, lighter and stronger performance.
S2Maui’s high performance sails are built with Carbon and Technora™ fiber (S2Maui Spacelight™) which have up to 10x less stretch and 8x higher tensile strength than polyester (which is used by the other guys).
S2Maui is different and prioritizes cutting edge technical materials that give real performance advantages.
RBS manufactures battens for the full range of sizes, including everything from windsurfing and dinghies all the way to high-tech race boats and mega yacht cruisers.
RBS Battens continually works with sail designers to create a state of the art batten focused on reliable and consistent performance.
Ronstan is a world-leading manufacturer of sailboat hardware, rigging components, sailing wear and accessories created through innovative thought and real-world testing. They offer a full range of yacht and dinghy sailing products including blocks, sheaves, travellers, furlers, rope cleats, stainless steel fittings, sheet and halyard winches and much more. No matter whether you are a racing sailor or offshore cruiser, their global team experience allows them to offer the perfect sailing product solution to meet your needs. Based in Melbourne, Australia, Ronstan's international network includes offices and distribution centres throughout the United States, Europe and Australasia. Their products have become the sailing equipment of choice for racing dinghy classes, including the International Moth, as well as many high-profile offshore racing programs like the Volvo Ocean Race fleet. If you have a sailboat, you need Ronstan.
ANDERSEN Winches are all about Design and Engineering. They employ state-of-the-art manufacturing technology, and after half a century of designing and manufacturing ANDERSEN Winches feel they've earned the right to be proud. ANDERSEN Winches has over 50 years of experience, and their 150 employees are dedicated to quality manufacturing. Their procedures are based on the toughest demands in the business, and their engineers strive constantly to improve their products even further, stretching from dedicated manufacturing to a 3-year factory warranty and reliable service worldwide.
COPPERCOAT is possibly the most powerful and long lasting anti-fouling available today. Developed in the 1980’s and available to the public since 1991, COPPERCOAT successfully protects tens of thousands of boats saving their owners time and expense.
COPPERCOAT is the combination of a specially developed zero VOC, water miscible epoxy resin and 99% pure copper powder (not cuprous oxide). Each liter of resin is combined with 4.4 lbs of ultra fine atomized copper powder, making COPPERCOAT the strongest copper based anti-fouling available. Indeed no other anti-fouling exposes as much active copper to unwanted marine life as COPPERCOAT.
The average COPPERCOAT customer world wide gets about 10 years of protection before they need to do their first touch-ups. That doesn't mean 10 years is a magic number; if you are in a mild fouling location it might be 12 years or more before you need to do anything. And if you are in a high fouling area and using an aggressive pad to clean the waterline it might be only 9 years.
King Screen Printing specialize in screen printing, embroidery and heat transfer apparel decoration. They provide solutions in advertising design, marketing, branding,
digital illustration, digital printing and
custom T-shirt & hat decoration.
They did our Red Dog Yacht T-shirts!
Wetter the better!
Raptor Deck is the BEST EVER decking solution available for super traction,
UV resistance, non-skid, easy to clean
made with a closed cell, hydrophobic, peel
and stick application. The Rosie G will definitely be covered in Raptor Deck
Unlike what might first come to mind, their process of producing pictures on glass, metal, wood, acrylic or any rigid substrate is not about taking a printed photo and doing a standard lamination onto the surface nor is it about encasing the photo on/in acrylic sheets. Instead, the photo is printed directly onto
the substrate via a Flatbed UV Printer. The
end result is an affordable masterpiece,
just like SV Rosie G's sail