Procedure CED Technologies used to test propeller guards at State University of New York (SUNY) @ Bufflao in the CRESE circular water tank using PVC pipe chines of ballistic gelatin.
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Houseboat Propeller Regulation Proposed and Withdrawn by USCG: Analysis by PGIC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