Letter from Dick Snyder of Mercury Marine to U.S. Marine Corps Major James Snell concerning propeller guard testing in 1989. Trim and propeller pitch are discussed.
Houseboat Propeller Regulation Proposed and Withdrawn by USCG: Analysis by PGIC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