Sheer Pin or Prop Pin
A small, sacrificial metal pin designed to break if the propeller hits a hard object, protecting the engine from damage; boater education includes carrying spares.
Related Terms
Overboard Recovery
Procedures for retrieving a person who has fallen off a boat (e.g., the “figure 8” method, throwi...
Read MoreBoat Engine Maintenance
Routine checks (oil changes, spark plugs, cooling systems) to ensure safe and reliable operation;...
Read MorePropeller Strike Avoidance
Precautions to prevent injuries from a spinning propeller (e.g., turning off the engine when swim...
Read MoreOutboard Motor
An external engine mounted on the transom of a small or medium-size boat; boater education covers...
Read More