Pop 25

Pop 25 Horus is being built at fast pace

We are really impressed with the speed that our friend Daniel D’Angelo, from City Bell, Buenos Aires, Argentina, is building the Pop 25 Horus. Being a geologist, Daniel works one month in the field followed by one moth off, being in this free time when he builds the boat. He received the plans in April 2011 when the project wasn’t officially launched, requiring yet the final revision. Nevertheless he started building it straightaway and in ten days he had all structural bulkheads fabricated.

Pop 25, the project we developed with the intention of helping others to have an affordable offshore sailboat within the scope of the amateur builder. Render: www.ideebr.com

This impressing performance was a very good beginning. However our purpose was exactly that of providing a shortcut during this first step of the construction. We learned by the experience of hundreds of amateurs who built boats from our plans that, if this first hurdle of preparing at the workbench the transverse structure was overcome in very short time and in a pleasant way, the rest of the construction would have the same chance to progress rapidly and pleasantly. At any rate, our choice of designing almost rectangular transverse structures, a trend in state of the art hull designs, is clear sailing for inexperienced amateurs.

Station 1 and Station 2 bulkheads ready to go to assemblage. Part of Station 3 bulkhead is seen on the right corner. Photo: Daniel D’Angelo

Bulkheads at stations 6, 5 e 4 leaning along the wall on Daniel’s garden, alongside the swimming pool. Photo: Daniel D’Angelo

The feeling we had that a quick passage through this phase of construction was a confidence booster had been confirmed in the Horus construction. Soon after concluding the fabrication of the bulkheads Daniel returned to the Amazon Forest, already craving for resuming the Pop 25 construction. It must have been quite painful having to stay one whole month away from his hobby that was providing so much pleasure. It is no wonder Daniel returned to Argentina willing to work at full throttle. He managed to almost finish the construction of the hull in this month off, missing only sheathing the hull with fibreglass. Then he had to endure another month away, but when returning, it was to complete the hull construction.

The hull ready to be turned over, with the hull bottom already protected with two coats of epoxy coal-tar. Photo Daniel D’Angelo

Not being a first time builder, since he had built a Samoa 28 and a Pantanal 25 in the very same spot in his house’s garden, Daniel called the same buddies who helped him previously to assist in the turning over, which was accomplished smoothly, followed by a much deserved barbecue. Only those who have passed through this experience can understand the joy it represents seeing the hull you just finished to build becoming a real boat with its whole interior to be appreciated.

The Pop 25 is tremendously spacious internally. Photo: Daniel D’Angelo

Taking the maximum advantage possible of the spare time still available, Daniel opted to install the superstructure ceiling before interrupting the work, this way ensuring better protection against the inclemency of the weather, since the boat would be going to be left for one whole month in his garden unattended, protected by a tarpaulin only.

It is planned for the next phase completing the superstructure and installing the equipments, being in Daniel’s plans to be launching Horus this December. You can follow all steps of Horus construction entering in our page of links: Pop 25 Horus.
After choosing the language, click in the banner on the right upper corner,


Pop 25 – The plans are already available

After lots of work and a small delay, we are glad to inform that the Pop 25 plans are already completed. It is not the first time that we take a little longer to conclude a project than we expected. But now this is past. What counts from now on is to prove that the Pop 25 is an easy to build and affordable ocean-bound sailboat absolutely within the scope of the amateur builder.

Normaly we wouldn't advertise a new stock plan before it had been concluded, but this time we had good reasons to do differently. Roberto Barros, the B & G partner who runs the Brazilian branch of the office, was invited by the Rio de Janeiro Boat Show to give a lecture about the Pop 25, in May 2011, and even though the plans were still incomplete by then, we felt we couldn't loose the opportunity. The decision was wise since the lecture was quite succesfull, showing that the design stirred great interest.

This note was published in the June issue of the Brazilian magazine Revista Nautica,
informing about our office's next launching, the Pop 25

Actually our decision was a step in the right direction. Not being a prived issue anymore, we had the opportunity to offer the plans to our friend and client, the Argentinean Daniel D'Angelo, who showed great interest in building the Pop 25.

Daniel, even though being a novice in the art of boat building, had constructed two boats from our design, a Samoa 28 and a Pantanal 25. (See in our page of links: Samoa 28 Sirius and Pantanal 25 Vega). Being a geologist by trade, he found in the hobby of home-building the best entertainment for his leasure time, since he works one month in the field and has one month off. He loved building the two other boats, but when we assured him that the Pop 25 was considerably faster to build than the two previous ones, he was cathegoric in deciding that the Pop 25 was the boat he wanted to build next.

So far, so good. Daniel started the construction of his Pop 25 Horus in the first of June and before the end of the month he had the hull practically finished. (You can follow a gallery of photos of his construction entering the site Samoa 28 Sirius in our links, clicking in the Argentinean flag, and clicking again in Horus, up the page at the right corner)

The Pop 25 Horus, the prototype of the class, is being built in Daniel's house garden, at City Bell, Buenos Aires, Argentina. He took exactly ten days to make the eleven bulkheads that constitute the transverse estructure of the boat. Photo: Daniel D'Angelo.

Daniel D'Angelo and Roberto Barros scheduled having supper together in Gavea, the hot place in Rio, and on that occasion the main dish in the menu was no other than chating about the Pop 25. When Roberto informed that the whole construction hardly required anything more than temporary nails and epoxy glue to join all parts together, Daniel, who is a workaholic, couldn't wait to put his hands into this new defy.

Horus is rapidly taking shape in exactly the same spot where Sirius and Vega were built;
his home garden next to the swimming pool. Photo: Daniel

Since we took a little longer to conclude the plans than we expected, we ended up with a waiting list of people asking details of the plans, especially how much it will cost. Now we have this value in our price list, which is AU$300.00. Next we will answer all e-mails received. We are prepared to give all the information required and to assist those who intend to build the Pop 25.

Daniel has a good sense of coordination. While he is building the hull at full speed, he already ordered the twin keels to a workshop in his own suburb, one of the greatest advantages of the Pop 25, and also ordered the spars and sails. When he completes his work the boat will be fit to go sailing. Photo: Daniel D'Angelo

From now on we intend to publish reports about the Pop 25 class regularly, especially about the constructions that will take place in different communities. This design is showing signs of becoming the most globalized of our stock plans. After all its features are desirable for many different reasons, like being easy to build, not requiring cradles, being an unsinkable, well insulated, blue water sailboat, and possessing many other characteristics seldom found in the same design.


Pop 25 - The super-simple offshore sailboat for amateur construction

Since August 2011 the Pop 25 plans are available in our list of stock plans. Actually there are already some of them being built and others getting ready to start the construction. However, independent of all the hard work done, we still are dedicating our time to the project, now getting involved with issues related to its long range cruising potential.

The Pop 25 deck layout offers good protection for the crew by means of a well proportioned dodger. A low gantry offers the necessary support for solar panels, besides allowing the installation of the radar antenna and wind generator. Render: www.idéebr.com

The latest details we produced were a snug dodger protecting the companionway hatch and the fore side of the cockpit, a gantry for the solar panels, wind generator and radar, and the schematic drawing of a steering gear, fundamental equipment to anyone interested in long range passages. In the case of the Pop 25, installing a self-steering gear is highly recommended, since, having electric driven auxiliary propulsion, spending electricity to run an auto-pilot, at least for prolonged usage, should be avoided. Even though these details are normally neglected by yacht designers, since these are optional equipments, in the case of the Pop 25 it is different. Suggesting the heights, proportions and styles of these gears is important, since it may help our builders to take their decisions. Actually we are offering a twenty-five foot offshore cruising sailboat to the amateur builder, an uncommon proposal for a boat of this size.

The Pop 25 design is an attempt to allow that a larger number of persons can be able to afford offshore cruising. Render: www.idéebr.com

We are also producing rendered figures, step by step, of the different stages of the building process. Our plan is to turn so clear the understanding of all phases of the construction, that our builders will hardly need any written word to assist in explaining the building procedures. The reason for doing so is based on the observation that a large amount of the time spent by amateurs is wasted in finding ways to make any specific job during the construction. Nothing wrong in that, if it is the builder’s wish, except for the loss of time, and sometimes of money too.

What shouldn’t happen by all means is making mistakes for lack of understanding. In the case of the Pop 25, the more we can use figures to explain our ideas, the better.

Since the plans contemplate some new concepts in amateur boatbuilding procedures, we only feel confident enough of doing our best to assist our builders, if the figures are absolutely clear to be understood.

The Pop 25 is very simple to be built. Its construction is cheaper and faster then that of most other sailboats designed for amateur construction. Besides, it is unsinkable and thermally insulated. Render: www.idéebr.com

The Pop 25 plans were developed with the firm purpose of allowing a larger number of persons to enjoy the sport of cruising under sail, people that otherwise wouldn’t have the resources to buy a new boat from a dealer. She is simple and quick to be built, and she is amazingly comfortable for living aboard, either in port or when sailing offshore. The design envisages a democratization of the right of sailing offshore in one’s own boat.

The Pop 25 is comfortable enough to be inhabited by a small family, either in port or at sea. Render: www.idéebr.com

This is a right that all of us who love the cruising life-style should have, to be able to go to sea aboard his own boat. When we decided to be yacht designers specialized in cruising sailboats, it was with the intention of working towards finding an escape, at least for a while, from the oppressions caused by the establishment around us. In the deep sea and in more remote places, where nature is still pristine, you can breathe more freedom, in a way that it is becoming difficult to be found in places where we are raised.


Pop 25, our next stock-plan

B & G Yacht Design (formerly Roberto Barros Yacht Design) will commemorate its twenty-fifth anniversary in 2012. The studio already produced more than one-hundred projects during these years, some of them having been recognized as outstanding designs, as is the case of the polar yachts Paratii, and Fraternidade, our Polar 65 stock plan built by the Ukrainian sailor Alexis Belov, which is presently accomplishing a round the world trip having a group of young scientists as crewmembers.

However this well-succeeded story had its deep roots in a pursuit for the perfect small boat for ocean-bound adventures.

This was the original dream of Roberto Barros, the founder of the office. Since his childhood he wanted to travel to distant lands, but had no means to acquire a conventional yacht for that purpose. He wanted to learn, first of all, if it was possible to cross oceans in a small boat with the same level of safety as in a large one. He understood that the best way to find the answer was by testing his theories himself.

Paratii, the yacht designed by B & G Yacht design in partnership with the engineer Gabriel Dias for the Brazilian adventurer Amyr Klink. This yacht was awarded the coveted Tilman Prize, commend instituted by the Royal Cruising Club of England, as one of the five best polar yachts of all times. Amyr was the first person to sail non-stop around the Antarctic continent single-handed.

The pursuit for the perfect small boat to cross oceans had its beginning during the sixties, when Roberto Barros and his wife Eileen departed for a long distance cruise from Rio de Janeiro to French Polynesia aboard Seabird, a twenty-five foot cruising sailboat, in a pioneering adventure for a Brazilian sailboat, being the first yacht from that country to cross the Panama Canal and sail across the Pacific. This voyage was related in the book “Rio to Polynesia” whose English version is published in the site www.yachtdesign.com.au, and can be accessed for free from a link in the home page. The book was source of dreams to many others who wished to reach places practically inaccessible, at least at that time, by other means of transportation.

Early in the sixties Eileen and Roberto had already a taste for snug bright-work interiors. They lived for three consecutive years aboard Seabird and they reckon those were the happiest days in their lives. Photo: Roberto Barros

The Seabird voyage taught Roberto and Eileen that it isn't necessary to own a fancy yacht to find true happiness. Aboard their destitute of the most elementary amenities, such as plumbing, electricity for cabin illumination, standing headroom, inboard engine, and last but not least, with no means to communicate with the outside world, even so they can't remember better times in their lives. In only one aspect Seabird rated less than what is expected from a safe offshore craft. She was narrow like a knife cutting the water. With slightly more than 1.90m maximum beam, she had frightened her crew a few times, as when she almost pitch-poled when running in the tail of a hurricane during the crossing of the Caribbean Sea. On that occasion, during one of Eileen's night watches, she was washed overboard, being saved by the safety line, mandatory for whoever was on watch, not minding the sea's condition. Seabird turned turtle to such a degree that all loose stuffs aboard ended up landing on the roof.

When arriving in Panama the crew was surprised by perplexing news: Eileen was expecting a baby!

During the first month of the crossing of the Pacific Eileen was sick every single morning, no matter if the boat was sailing in rough conditions or if the seas were flat as a mirror.

After having enjoyed the primitive life that prevailed in the remote islands of the South Pacific, they arrived in Papeete, the capital of French Polynesia, where, in 03/19/1969 Astrid Barros was born. In spite of the birth having been a caesarean, three days after the family was back onboard, since that place was their only shelter on Earth…

Eileen and little Astrid profiting from the morning sun in Park Bougainville, placed at a stone's throw from where Seabird was docked. Photo: Roberto Barros

***

When the office started its activities it was established that one of its priorities would be to provide some kind of support to those who couldn't afford paying the price of an average sized production made yacht. Our smaller ocean capable sailboats should be as seaworthy as the brave Seabird, even though abandoning its Spartan approach.

Inspired in the experiences obtained with the voyage of the Seabird, the office developed the project of the MC 23, its first design meant for amateur construction.

Multichine 23 MK IV Sollazzo. It is amazing how this midget ocean sailboat intended for amateur construction is comfortable and seaworthy for its size. Courtesy: Flávio Traiano

The enterprise of introducing the MC23 was absolute success. The plans were so appealing to the nautical community that there are already more than three hundred of these boats being built or sailing. The project, even though having the same lines plan of its original version, is already in its third upgrade, now being called MC23 MKIV, and presently is the office's bestseller.

However it wasn't by chance that this successful career took place. The MC23 is an authentic ocean bound yacht and its construction is assuredly at the scope of the amateur builder, as it has already been proven by dozens of novices.

The MC23 MKIV is an authentic offshore sailboat. Courtesy: Flávio Traiano

The victorious MC23 career runs parallel to that of Astrid Barros, the baby born in the South Seas. After a childhood and adolescence involved with the nautical world, either as a keen one-design racer, or as a cruising enthusiast, her option for becoming a naval architect was quite a predictable decision, later enhanced by a PhD. degree in computational fluid dynamics.

The office had been established mainly with the purpose to allow that the Barros family inclination for nautical activities could become their way of living. When Astrid married the naval architect Luis Gouveia, he also joined the company, making it, more than ever, a family affair.

However, in spite of the casual style in which the firm was run, in a short time it gained prestige among the sailing community. The office, placed at Rio de Janeiro downtown, soon was recognized as the point where yachties used to gather in the early evenings for endless nautical chats, having no distinction between friends and clients. In a short time the studio also attracted a group of young professionals who had a talent for yacht design, having produced a team of recognized competence.

Astrid leaving the drilling rig she went to inspect in Abu Dhabi, U.A.E. Courtesy: Astrid Barros

In 2007 a major change happened in the office's destiny. After twenty years of operation in the same address, Astrid was invited to join a multinational specialized in marine engineering, and, when accepting the job offer, the fate of the yacht design studio was to shift to a new dwelling in the distant Perth, in Western Australia. In the new lodge, Astrid's husband Luis Gouveia kept running the yacht design office, now with the denomination B & G Yacht Design (B & G representing the two surnames, Barros and Gouveia). Roberto and Eileen Barros stayed in Rio de Janeiro giving the necessary support to the Brazilian branch of the company, which was not discontinued.

The change of country was tremendously advantageous for the company. While in Brazil sales were heavily taxed, in Australia, sales for overseas countries are exempt from taxes, while domestic sales are taxed in 10% only. On the other hand production was not affected, since the original team that worked in the Rio de Janeiro office remained collaborating on-line.

Soon the family was feeling perfectly at home in Perth. Australian and Brazilian similar temperaments and proverbial casual behaviours were decisive for a quick adaptation. Just from the second week in the new town the children were enrolled in a public school, and in less than one year they were speaking with a Western Australian English accent, an accomplishment not matched by their parents. Two years after their arrival they had already bought a house in Attadale, a suburb of Perth, and by then they were feeling themselves as local citizens.

The family enjoying holidays in a sky resort in South Korea. The second from the left is Christian, Luis and Astrid's elder son. The two in the far right are their daughter Juliana and Luis Gouveia. Photo: Astrid Barros

However life doesn't use to be that simple for expats. New contracts made them change addresses twice more, the first time to Singapore, where they stayed for one and a half years, and then to South Korea, where they are living now, having arrived in November 2010 and probably staying there until the end of 2012. The family intends to return to Perth, this time to stay, from then on giving full attention to the yacht design office.

***

The Pop 25: During the almost twenty-five years of career B & G Yacht Design dedicated a large amount of its time producing cruising sailboat designs in a large range of sizes.

When during the second half of 2008 the economies of some import countries slumped, we felt that it was the right time for introducing a cheap, easy to build sailboat, adequate for coastal cruising, within the scope of the inexperienced amateur builder.

If middle class cruising sailors couldn't afford, at least temporarily, buying a brand-new production yacht, while the second-hand market was still out of their reach, the best possible solution should be the do-it-yourself approach. The name we chose for the project, Pop 25, was not casual. It had a strong connotation: it was intended to conquer the hearts of those who didn't give up their dreams.

The challenge: Obtaining a low budget cruising sailboat is not an easy task. There are heaps of FRP production models smaller than eight metres L.O.A. available in the market. Notwithstanding, it is quite improbable that any factory would consider investing in a commercial design in this range intended for coastal cruising, since it is not expected from a twenty-five foot yacht to have such ambitions. It is commonplace to understand that the vast majority of sailors looking for a boat of this size are primarily interested in weekend sailing.

However our office doesn't work with the intention of providing stock plans for the majority of the market only. We love producing alternative plans for those that can't find the product they are looking for in the conventional market. In the case of designing affordable offshore sailboats of small size, it is almost an obsession of ours to offer attractive blue-water sailboats for the less well-off sailors.

Finding a second-hand truly offshore sailboat in the twenty-five foot range is quite difficult, except for some very old models, since it was not unusual some forty or fifty years ago that factories, mainly in the U.K., France and Scandinavia, invested in small craft designs intended for this type of usage. Those were the days when single-skin fibreglass laminations, perhaps for lack of data, were so over-dimensioned that some of the boats produced at that vintage probably will last for centuries. On the other hand their hull designs are considered far from adequate, either for lack of buoyancy in their extremities (excessive overhangs), or for insufficient stability.

Nevertheless we are aware that, even being minority, there are many middle-class cruising sailors of all ages interested in acquiring a reliable cruising boat with a price tag to fit their pockets.

Due to the prosperity that prevailed during most of the last thirty years or so, the average length of cruising yachts never stopped increasing, to the point that they became too large to be sailed short-handed, and also too expensive to be worth investing in their acquisition, never mentioning their cost of maintenance.

When common people suffered the impact of the 2008 slump, the acquisition of larger cruising sailboats became an issue out of the question in their priorities. However, deep in their hearts, the love for the tramp life-style that sailboats can afford never relented. The more people get disillusioned with the economic situation, the more they want to pursue their endeavours of freedom.

The alternative: It was when we realized that being specialized in blue water sailboat designs for amateur construction; we had the golden opportunity of bringing a bit of hope to those who would like to build an offshore sailboat. That should be the light at the end of the tunnel, an escape from the present situation. If they could invest no matter how little, as far as being a constant monthly amount, in a home construction, the dreams could be kept alive. People are aware that being involved in amateur construction is the first great adventure in a row of others that will come later, so, the hassle of building their boats in their home gardens, instead of being a burden; it becomes an unforgettable experience.

We admit that home-building is quite challenging. However, obtaining an affordable twenty-five foot boat with plenty of room to live aboard and good enough to take you in coastal cruising is an achievement that may represent a major change in life.

Pop 25. This easy to build offshore cruising sailboat is our most important contribution to amateur construction. Rendered image: www.ideebr.com

We invested all our know-how and past experience in developing a sturdy, low-maintenance, long-lasting small yacht. To obtain this goal we had to be quite creative, finding simple solutions for each step of the construction, and now that the plans are concluded, we are pretty assured we managed it.

The building process: We chose the plywood/epoxy building technique for the Pop 25 for its simplicity of construction and the high quality of boats fabricated by this process. It is not by accident that plywood/epoxy boatbuilding is the most popular system among amateurs worldwide.

A plywood/epoxy hull is light for its strength, extremely rigid, requires minimum maintenance, while affording the best of both worlds: the water-tightness of FRP hulls, thanks to the fibreglass outside encapsulation, and the snug, warm atmosphere, of the wooden interior.

The simplified Pop 25 transverse structure is duck-soup to be made.
Rendered image: www.ideebr.com

But we wished to introduce a different approach to plywood/epoxy construction. Our method had to be extremely builder's friendly during the first steps of the work, so to give incentive and self-confidence to the inexperienced amateur straight from the beginning, when doubts and uncertainties are still settled in their minds. The factor which deters most beginners from concluding their constructions is finding the first steps of the building too complicate and slow. If results are visible from the start, it is improbable that anyone will want to interrupt the construction.

An innovative building technique allows for an amazingly quick hull construction.
Rendered image:
www.ideebr.com

Our approach was quite straightforward: considering that there is nothing easier to make than a rectangular frame, we designed the basic transverse structure of the hull with this shape, with the concession of a triangular chamfer at the bilge corners, producing a double-chine hull, fortunately of great efficiency.

This shape is not only a short-cut in sailboat design. It is also the state of the art in hull lines, enhancing stability, while allowing a linear flow under the large flat bottom. With the adoption of twin keels and rudders tilted at an angle of 12°, we obtained a hull of distinguished performance when sailing close-hauled, when the leeward keel finds its vertical position, providing maximum efficiency in lateral resistance, while the windward one is enhancing stability.

Next, if the assemblage could be made employing hammer and nails as basic building tools, and if the panels for sheathing the hull were easy to make, either by being cut manually with a jig-saw, or cut with water jet from a CNC file, then no one would feel overwhelmed with the perspective of assembling the hull.

Provided one reaches the stage of seeing the hull concluded, from then on we bet it will be quite improbable that anyone will give up the job.

An innovation in the construction method is the specification of double-walled topsides. This allows a superior thermal insulation, and, as side benefit, the boat acquires two hundred-forty litres of reserve buoyancy. Actually, with the topsides flotation cells and other sealed water-tight compartments, the Pop 25 is virtually unsinkable, a safety factor seldom found in sailboats of any size. Deck and coach-roof are also double-walled, what makes the Pop 25 quite special regarding reserve buoyancy and thermal insulation

Another relevant factor in reducing time and cost of construction is the choice of easy to find raw materials for the whole building process, besides requiring a minimum of tools, since, as it was mentioned above, the boat is built basically with hammer and ordinary iron nails. Since all parts are bonded with epoxy glue, the nails are extracted when the epoxy settles. Imagine how significant these savings in cost and reduction of construction time represent!

The concept: In the first place the Pop 25 is an offshore sailboat. For this purpose safety and comfort were priorities in the development of the project. Besides, being intended for amateur construction, there was a great care in specifying clear solutions for the boat's constructions and simplifying custom fittings design. It also should be assured that the building process was created to make construction faster and cheaper.

The boat is extra-spacious for its size, having sleeping accommodations for up to six persons in three double bunks, galley equipped with sink, alcohol stove and lockers, navigation table with a front panel for instruments installation, and heads with a hatch over its sole and an opening port installed in the front-wall for an efficient natural ventilation. Maximum standing headroom is 1.80m (5' 11”), this place being located under the companionway hatch, a strategic position to allow dressing a wet suit without requiring performing antics for this.

The Pop 25 is intended for those who love sailing adventures, but can only afford a low budget yacht. We know that what matters most for them is a feeling of confidence in the boat, especially when the weather conditions are adverse.

When designing the Pop 25 our main aim was to eliminate the most frequent setbacks found in small cruising sailboats, like insufficient ventilation and poor thermal insulation. In these respects this plan is outstanding, having natural ventilation throughout and double walls with insulating foam in between. Plumbing and electrical installations are also quite simple to be serviced, with easy access to all its parts. Two integrated holding tanks, with sixteen litres capacity each, allow full usage of the boat where discharging human wastes overboard is illegal.

As a sailboat standpoint, the Pop 25 is intended to be easy to be maneuvered by a short-handed crew. With only three sails to handle, the three of them permanently stored in their places, with the reaching Genoa sheet being led to a fixed point on deck and the working jib being specified to be reefed to storm jib size, the boat is astonishingly simple to be sailed. The main-sheet is easily controlled by the helmsman, having the traveller located at an arm's length from his seat. The full-batten mainsail has two reefing points separated by a larger distance than usual, allowing the main to be reefed to trysail size, eliminating the need of one more sail aboard.

The Pop 25 doesn't require a cradle to be stationed in a courtyard.
Rendered image:
www.ideebr.com

Being a twin-keels, twin rudders sailboat, the Pop 25 is the best boat to be stationed wherever tide range leaves the moored yachts on dry twice daily. The keels are made in a peculiar way: they are steel plates welded to steel rods with warhead shapes which allow the boat to rest on dry without requiring a cradle.

The ample T-shaped cockpit offers a privileged position for the helmsman, providing room to steer seating to windward, while having the mainsheet traveller at an arm's length

The 2.10m long cockpit has plenty of room for six persons to seat comfortably when socializing. A dodger (not shown in the figure) gives shelter for the crewmembers seated next to the trunk aft wall

However, the highlight of the project is its auxiliary propulsion. The boat is specified to have a 4.5 kW electric motor, the Swedish OZsingle, which weights 14kg, measures182mm diameter, 102mm depth, and works as a generator when the boat is sailing. Besides, it is almost inaudible when running and requires negligible maintenance.

What do you think about installing an electric motor in your bilge instead of a cumbersome diesel engine?
Courtesy:
www.OZmarine.se

The predicted performance for a 600Ah 12V battery bank is 4 knots maximum speed when shifted in the economic 24V mode, and 5.5 knots maximum speed when in the 48V mode, having forty minutes of operation in this condition. When sailing at six knots the motor supplies about 6Ah.

Besides the generating capacity of the motor when rotating by water pressure, electricity is also produced by solar panels and a wind generator installed in a gantry.

Using electric auxiliary propulsion employing solar sources of energy in way of fossil fuels is an ecologically correct attitude and should be the choice of every citizen concerned with the sustainability of the planet. In this aspect the Pop 25 is a boat tuned with the new times, when human kind will have to learn to live in harmony with mother nature.

The Pop 25 is capable of advancing for indeterminate time in any direction, no matter if there is wind or not. This is the closest state of absolute freedom we can imagine!

Pop 25, a shortcut for the ownership of an open-sea sailboat.
Rendered image:
www.ideebr.com

An interesting way of obtaining a Pop 25 by amateur construction is the association in groups of amateur builders. All plywood panels cut to shape with tenths of milimetres of precision may be ordered from a CNC cutting supplier, while other materials and equipments may be purchased in a wholesale basis. Nevertheless, individual construction is also very quick and cheap to build. Constructing the transverse structure represents eighty men/hours approximately. In twice that time it is possible to assemble the hull, ready for the fiberglass sheathing. By then the boat is already a reality.