When it was launched nearly thirty years ago the designers of the Autoprop could not possibly have realised how important their unique design was to become. Thousands of cruising yachtsmen around the world sail faster and motor further and more economically using Autoprops. With this history and its unique abilities it is not surprising that a new version of the Autoprop called the EcoHStar has been developed to propel the rapidly growing number of hybrid and purely electrically driven craft, both motor and sail, which are being launched around the world. Its development has been the work of...

It's already acknowledged that Autoprops are highly efficient because of their ability to auto pitch depending on engine speed and weather and sea conditions; an ability that provides optimum thrust at all times. But with purely solar or with hybrid power the list of advantages provided by the new Autoprop Eco*Star Propeller is further extended. 7 Electric motors, unlike diesels, provide a constant torque from zero to maximum rpm. Only the Autoprop Eco*Star Propeller, using its auto pitching ability, can match its own efficiency curve with that of the electric motor. The result, a considerable...

The Autoprop EcoHStar Propeller Range H5E, H20E, APSE 7 Diameters 380mm to 510mm or 15” to 20” 7 Shaft diameters 20mm to 35mm or 7/8” to 11/2” Bruntons Propellers Ltd Oakwood Business Park, Stephenson Road West, Clacton on Sea, Essex CO15 4TL UK T: +44 (0)1255 420005 E: [email protected] www.bruntonspropellers.com 7 www.autoprop.info BRUNTONS CUSTOM DIVISION Bruntons custom division provide solutions to naval architects, yacht owners and constructors around the world covering the most complicated of marine propulsion problems. Whether it is a fixed, folding, feathering or surface...