Catamaran equipped with re-righting device

A cruiser catamaran comprising:

• forward hulls having floodable forecastles, and buoyancy chambers disposed forwardly of said forecastles and communicating therewith;
• a watertight cabin disposed in the stern of said cruiser catamaran and separated from said forecastles by bulkheads;
• an openable and closable inlet for introducing compressed air into said buoyancy chambers, said inlet being arranged at the anterior end of said buoyancy chambers;
• and
• simultaneously actuable flooding means for flooding said forecastles and buoyancy chambers, whereby after capsizing, re-righting may be effected by initially activating said flooding means so that said forecastles and buoyancy chambers become flooded, as a result of which the bow of the catamaran moves downwardly about 130.degree. around its transverse axis, then the flooding means is closed and compressed air is introduced into the anterior buoyancy chambers through said inlet so as to return the bow and, in turn, the catamaran almost to its normal position.