초록 ▼

A trolling plate having first and second plate members joined in hinged fashion with one of the trolling plates moveable to a trailed inclined position in the presence of boat propulsion system backwash associated with speeds in excess of trolling speeds. Spring components reposition the trailing in

A trolling plate having first and second plate members joined in hinged fashion with one of the trolling plates moveable to a trailed inclined position in the presence of boat propulsion system backwash associated with speeds in excess of trolling speeds. Spring components reposition the trailing inclined plate member upon resumption of reduced boat speed and reduced backwash forces. Trailing of the plate member during high backwash force avoids trolling plate damage and, in some trolling plate assemblies avoids undesired unlatching of the trolling plate from an operative vertical position.

대표청구항 ▼

[ Having thus described the invention, what is desired to be secured by a Letters Patent is:] [1.] Trolling plate construction for attachment to a watercraft propulsion system and comprising,a bracket attachable to a watercraft propulsion system,first and second trolling plate members,pivot means fo

[ Having thus described the invention, what is desired to be secured by a Letters Patent is:] [1.] Trolling plate construction for attachment to a watercraft propulsion system and comprising,a bracket attachable to a watercraft propulsion system,first and second trolling plate members,pivot means for coupling the first trolling plate member to said bracket,hinge means coupling said plate members, said second plate member depending from said first plate member,resilient means acting on said second plate member urging same about the axis of said hinge means and toward a position substantially coplanar with said first plate member and into the backwash of a propulsion system to reduce the efficiency of the propulsion system, said resilient means permitting arcuate travel of said second plate member in response to backwash imparted forces occurring at watercraft speeds above trolling speeds.