Air flow plates: The air flow or anti-cavitation plate prevents the propeller from ventilating or sucking in air, cutting down cavitation and making certain reliable drinking water flow. Keyway: A equipment slot or groove within the propeller's hub that permits the shaft and propeller to mate. Cavitation plates: The cavitation https://outboard-motors-for-sale97750.plpwiki.com/6130802/indicators_on_boat_outboard_engines_for_sale_you_should_know