Pop 25 - Perfect combination

Sailing may be considered one of the most important inventions in history. It was by means of sailing crafts that commerce prospered in the Indian Ocean and the Mediterranean in the old age. The people who ruled the seas of those times were, with few exceptions, the same who controlled power on shore. When Columbus discovered the America, he contributed to strengthen the western civilization, bringing the wealth of the new world to the old continent. Magellan with his round the world trip was the pioneer of globalization, and the British, the best sailors of all times, ruled the world for centuries, leaving the English language as the universal idiom as heritage of its maritime supremacy.

It is true that navigating under sail lost all its importance, commercially, however it became the preference of cruising sailors who want to cross oceans in search of adventure. Sailboats are consumers’ dreams, however winds aren’t constant, and without a mean of auxiliary propulsion, travelling in blue waters becomes too risky, never mentioning traffic that expands continually.
When developing the Pop 25 plans we had in mind offering a sailboat of relatively low cost that would provide the necessary comfort and safety required for offshore passages, not so usual features to be found in twenty-five footers. We could specify diesel inboard engine for auxiliary propulsion, but instead suggested the installation of electric motor. The Pop 25 being a boat intended to be ecologically adequate, would become exclusively dependent on light and wind to be propelled.

The Pop 25 with its sails and its electric auxiliary can move in any direction, no matter it is blowing the perfect breeze or enduring a flat calm. Solar panels, wind generator and eventually a hydro-generator provide the juice to silently move the boat in any direction. Besides, the motor has the capacity to regenerate energy when navigating under sail.

Electric Motors are cheaper than the equivalent diesel engines. They are also lighter and their installations are much simpler. On the other hand, as the saying goes, there is no free lunch. If energy is endless, battery banks to store it are bulky and heavy. When we developed the Pop 25 plans we found a solution that answered this challenge in a quite practical way. The battery bank was placed in a strategic point where it performs the role of internal ballast and its weight is about the same as the difference in weight of a diesel engine and an electric equivalent, this way keeping the displacement unaltered.

In the Pop 25 specifications we advise storing energy captured by solar panels, wind generator, eventually hydro-generator too, and by the regenerative function of the motor when the propeller is free-wheeled, having the boat propelled by its sails. One of the motors suggested for the boat is capable of running for eight hours uninterruptedly on its economic mode (24V) at four knots. When operating on the performance mode (48V) the range falls to forty-five minutes, and the speed increases in one and a half knots.

Along the Pop 25 short career at least one of our clients already opted for the electric motor, purchasing the Electroprop 5.5kW made in California, USA. Our client, Fernando Santos, is going to help us in convincing other builders about the superiority of the choice. His boat is in the last stages of construction in an amateur hub of boat building in the city of Rio de Janeiro, Brazil. At any rate, being able to cross the seas in any direction in almost absolute silence is priceless and our bet is that this will be the trend for auxiliary propulsion in cruising sailboats from now on

The Electroprop 5.5kW already installed in Solaris, the Pop 25 being built in Rio de Janeiro. Courtesy: Fernando Santos

Click here to know more about the Pop 25.