Boat steering arrangement

摘要

A boat is provided with a steering arrangement comprising a main steering system and control-surface subsystem. The control-surface subsystem comprises a control-surface assembly attached to the stern of the boat and comprising a trim tab pivotally connected to the stern of the boat, and a skeg rotatably mounted by the trim tab. The control-surface assembly further comprises a trim-tab operating arrangement for pivoting the trim tab, and a skeg operating arrangement. The main steering system and the skeg operating arrangement can be selectively set to operate independently of each other, or in coordination with each other, in steering the boat.

主权项

1. A boat having a transom extending along a transom plane and provided with a steering arrangement comprising:
a main steering system with a steering control surface through which it operates to steer the boat, and a control-surface subsystem comprising:
a control-surface assembly attached to the stern of the boat and comprising; a trim tab pivotally connected to the stern of the boat, said trim tab adapted to pivot from +30 degrees to −30 degrees about a trim tab axis extending along and substantially parallel to the transom plane, and; a skeg rotatably mounted on the trim tab, located below the trim tab and adapted to pivot about a skeg axis extending perpendicular to the transom plane; a trim-tab operating arrangement for pivoting the trim tab about said trim tab axis whereby to selectively raise or lower the trim tab; and a skeg operating arrangement for rotating the skeg about said skeg axis to at least assist in steering of the boat; and, the main steering system and the skeg operating arrangement being selectively settable to:
operable independently of each other in steering the boat; and,operate in coordination with each other in steering the boat.