BoatHowTo · video

Cosa tratta questo video

Jan Attenstedt and Nigel Calder analyze the corrosion rates of sacrificial anodes on a custom sailboat equipped with a copper bonding system.▶ 0:12 The vessel features isolated anodes on the propeller, propeller shaft, and bow thruster, but lacks a hull-mounted anode.▶ 0:32 The owner reports replacing the propeller zinc mid-to-late season, while other anodes retain over 50% of their material.▶ 0:41 Calder identifies the internal copper bonding strap as likely part of a lightning protection system rather than a galvanic corrosion protection system.▶ 1:47 He notes that isolated underwater components naturally exhibit varying rates of anode consumption.▶ 1:40 While replacing a propeller zinc annually is common, rapid consumption suggests high variability in interaction between the bronze propeller and the anode.▶ 2:58 Calder recommends replacing zinc anodes with aluminum, which typically offers a longer service life.▶ 3:32 He warns that mixing anode materials within a common bonding system is prohibited, though isolated components can use different metals.▶ 3:30

Altro da BoatHowTo

ONE SWITCH for TWO PUMPS?? (Pontoon Boat Setup) | Ask The Expert with NIGEL CALDERlug 2026OIL LEAKS at the Crankshaft... | Ask The Expert with NIGEL CALDERlug 20261-2-both switch - Cost effective charging system on small boats? 🤔 Ask The Expert with NIGEL CALDERgiu 202648V or 24V - What makes more sense on a Boat? | Ask The Expert with NIGEL CALDERgiu 2026

Da BoatHowTo — guarda la barca, l'equipaggio e ogni video analizzato del canale.