MagBlade Max Thrust boat propeller viewed of the back of the prop blades. Also called AirBlade, Future Prop, and SlipStream.
Aspects of the Propeller Safety Debate chart
Houseboat Propeller Regulation Proposed and Withdrawn by USCG: Analysis by PGIC
History of Boat Propeller Safety
Mitigating Boat Propeller Injuries & Fatalities Chart