FREQUENTLY ASKED QUESTIONS
Unfortunately the Prop Protector is NOT designed to be used with outboard engines, stern drive engines or Saildrives.
The SLIDE-ON type requires a gap on the shaft of 18mm (0.7") and the CLAMP-ON a gap of 23mm (0.9"). These dimensions include a 6mm (0.25") of space on the shaft to allow water to circulate to the cutlass bearing.
The Clamp-On version can be fitted in approximately 10 minutes as the propeller does NOT need to be removed. The Slide-On version would take between 30 minutes and one hour as the propeller MUST be removed before fitting.
No. PROP PROTECTORS have no moving parts and require no bearings.
No. The zinc usually installed on the propeller shaft will also protect the PROP PROTECTOR.
No. PROP PROTECTORS are made of high grade 316 stainless steel and will never corrode.
In the unlikely event that your Prop Protector requires sharpening, this can be easily done by you with a ceramic sharpening stone or a metal file.
No, your PROP PROTECTOR will continue cutting while the shaft is turning.
For vessels cruising at 25 knots or less the affect on boat speed is negligible. For high speed vessels at above 35 knots, RPM may have to be increased by about 10%.
No. PROP PROTECTORS are completely silent in operation.
PROP PROTECTOR has been selling in Europe since 1992, and the USA since 1995. More than 25,000 units have been sold throughout the world.