Erik Aanderaa · video

What this video covers

The owner of the sailboat Tessie replaced a fixed propeller with a three-bladed Gori folding propeller to reduce drag while sailing.0:24 Installation required shortening the propeller shaft by a few millimeters and grinding the keyway to fit the new hub.2:38 The project also included installing a sharp rope cutter from AB Marine just forward of the propeller.5:28 During sea trials, the Gori propeller demonstrated a significant performance increase in overdrive mode, providing nearly one knot of additional speed at 2,000 RPM compared to standard mode.10:25 The folding mechanism successfully eliminated shaft rotation while sailing, confirming the reduction in drag.11:16 Additional maintenance performed on the vessel included replacing the gearbox, TIG-welding cracks in the 140-liter stainless steel diesel tank, installing a sight-glass tube for fuel level monitoring, and adding isolation valves to the engine-fed cabin heater.2:55 The owner also cut new inspection hatches into the floorboards to improve access to the bilge and cooling valves.15:08

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