Abstract: A method of detecting a collision of the marine vessel includes sensing using distance sensors to determine whether an object is within a predefined distance of a marine vessel, and determining a direction of the object with respect to the marine vessel. The method further includes receiving a propulsion control input at a propulsion control input device, and determining whether execution of the propulsion control input will result in any portion of the marine vessel moving toward the object. A collision warning is then generated.

Abstract: A system and non-transient computer readable medium for executing a method for controlling position and speed of a marine vessel propelled by a marine propulsion device along a route including a plurality of waypoints are disclosed. An input source provides the plurality of waypoints to a controller, each individual waypoint being associated with a respective operator-selected desired speed of the marine propulsion device. A position determination device determines an actual geographical location of the vessel, and a speed sensor determines an actual speed of the marine propulsion device. The controller receives a given waypoint and its respective desired speed from the input source, the actual geographical location from the position determination device, and the actual speed from the speed sensor. The controller compares these values and outputs commands to propel the marine vessel to the given waypoint and concurrently to operate the marine propulsion device at the respective desired speed.

Abstract: A multi-spool turbofan engine has a plurality of circumferentially spaced poppet valves with diverters secured thereto for precisely controlling bleed of combustion gas aft of the high pressure turbine whereby the high pressure spool operates at high idle RPM so as to power accessories and the low pressure spool operates at low RPM so as to minimize noise and fuel consumption.

Abstract: A multi-spool turbofan engine has a plurality of circumferentially spaced poppet valves with diverters secured thereto for precisely controlling bleed of combustion gas aft of the high pressure turbine whereby the high pressure spool operates at high idle RPM so as to power accessories and the low pressure spool operates at low RPM so as to minimize noise and fuel consumption.