Little girl used as child surrogate in geometric propeller guard test by the defense that appeared to be for shock value in Robin Listman vs OMC (Outboard Marine Corporation) boat propeller injury trial.
Houseboat Propeller Regulation Proposed and Withdrawn by USCG: Analysis by PGIC
History of Boat Propeller Safety
Mitigating Boat Propeller Injuries & Fatalities Chart
Four Volume Review of the Boating Industry’s Boat Propeller Guard Product Liability Defense