improving sustainability with hybrid propulsion


Sail for ethics -S4E- aims at improving sustainability in the maritime transport, fishing and tourism, adapting hybrid propulsion -sails & engine- on existing ships in coastal regions.
S4E has for objective to foster decarbonized maritime transport worldwide using hybrid sailing cargoes/passengers ships reconstructed from used freighters and trawlers. Acting on several levers, Sails 4 Ethics makes it possible to simultaneously achieve sustainable and equitable economic and social objectives while preserving the environment.
The locally owned fleets are promoted in developing and emerging countries to increase sustainable South-North and South-South transport of goods -with a special focus on fair trade, organic and ethical economy- and passengers. S4E also supports and participate to sustainable tourism activities.
The reconstruction process takes place on site, benefiting local population with employment and professional skills training ensuring equity.

Combating climate change through the decarbonization of maritime transport involves all levels of action. The S4E project is positioned at the micro – local scale.

Sustainable navigation respects biodiversity by reducing chemical pollution and noise pollution.

From local to global, by the small scale.


You will find information, a library of documents, printed matter to download (technic, politic, geography…), definitions, photos and videos.
Our timeline is the follow-up of the activities that we carry out in the more or less long term, in-depth articles.
The activities will lead you to exciting conferences on the theme of the ocean, or partners who accompany us in the adventure.

We are converting a 1953 trawler in schooner

The Michelle Louisa, dutch trawler 24m lenght, 5.6m beam, we are converting it into a sailboat ourselves. Currently in Belgium, the adventure carried by Georges Drouet, Prospective International asbl and Prospektika SCRI started in 2013. The source of our future action protocol. Towards the future gaff schooner, the lived experience, listed live, difficulties, successes, progress are to be followed in the timeline.

Carbon footprint and sequestration

Our carbon footprint as an actor is an important criterion. Our ambition is to create a sustainable and natural activity, eco-designed from its very first steps. We are aiming for a label & international standard criteria.

The decarbonization of the oceans is only one part of the overall decarbonization taking place on the planet.
Website, hosting, trips, office, way of life – because everything is linked – as well as the partners we have, tend towards a visible and quantifiable global coherence of greenhouse gases, consumption carbonic and thermal reduction.
Thus, we ask our service providers to travel by train as much as possible, we favor small, even artisanal structures that can demonstrate their commitment in this direction. The carbon footprint of the activities will be on the linked page.The carbon footprint of the activities will be on the linked page.

This web page is 66 % lighter than the commun average of webpages. Dedicated page SOON !


Organisational Chart

Georges Drouet

Georges Drouet

Project Director

Georges is rooted in the ground, with powerful wings, like its vocation for the ships on the Ocean.
Marie-Laure Drouet

Marie-Laure Drouet

Head of mission Europe

Marie-Laure, is geo-grapher: she likes to write about and understand the earth, as pollinator her leitmotiv is: everything is possible.


François Vivier Naval architect

François Vivier Naval architect

French naval Architect and expert


What a challenge : go to sailboats without going to the past ! Happy to work with Cretus Mtonga for Tanga-North of Tanzania. More information in the next article !… A new activity Based on the conversion of old fishing boats. Our purpose is a pragmatic and practical approach to reduce today the emissions of…
Read More Innovation: the ocean we want.
Wind vs gasoline: silence and pollination, or noise and pollution ? “Ecomorphism—from oikos as habitat and morphé as form—is the result of a species’ adaptation to its environment.” says Edith Liégey, Sorbonne Université, Paris.UMR 8560 Centre Alexandre Koyré CNRS Histoire des Sciences et des Techniques. Could we just think as specie in our habitat ?…
Read More The boat propulsion, sails vs engine it’s a way to fight against Ocean pollutions.
An excellent web site to use for all the navigational charts of ALL THE OCEANS per month, in the time of all virtual, this are magnificent and incredibly precises charts, meteo information and others usefull for navigators : In French but maps in english and lot more. The pilot charts are available free of…
Read More Tools for navigation for map lovers
Plans have arrived.The challenge has been met!We didn’t have a 3D photo scan of the boat to be able to draw a virtual image on which to work in simulation and make the curve plans.We only had a side and top plane in the 2009 stability booklet.No face, no volume… The impossible mission of taking…
Read More The new boat plans have arrived. Emotion !


Jérôme Delaunay Architect naval


Marie-Laure Drouet

Head of mission Europe

+ 32 10 688 748 (Belgium)

+33 644 70 34 79 (France) (for Whatsapp)

Georges Drouet

Project Director

+ 265 995 42 35 47 (Malawi, Whatsapp)