CASTOR+ and POLLUX+ the Twins Common features: the possibilities the yacht design offers. The shaft of the servo pendulum is available in various lengths. The servo pendulum can be lifted sideways out of the water and is accommodated alongside the tower. The servo pendulum is constructed from teak. The weight is approximately 11 - 14kg depending on the mounting details. Special features of CASTOR and CASTOR+: servo pendulum is fitted behind the windvane tower. This model offers the possibility of being fitted to different yachts and stern details. The length of the horizontal tube is variable for mounting on an integral platform or underneath a higher platform.