Helm of Owen Corkery’s boat. Owen was ejected and struck by the propeller of the circling boat. Image is from the MAIB investigation report.
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Houseboat Propeller Regulation Proposed and Withdrawn by USCG: Analysis by PGIC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