Sailing Catalpa · video

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Lee and Sarah replace a fixed three-blade propeller with a folding Gori propeller on their boat, Catalpa, to improve sailing speed and fuel efficiency before a 4,000-mile Pacific crossing.3:09 The installation involves sliding the hub onto the shaft, securing it with a keyway, and torquing the assembly to specification.4:03 Because the correct socket size for the 1.75-inch shaft was unavailable, Lee modifies an impact-rated 36mm socket to fit the propeller nut.5:30 The process includes applying Lanolin as a lubricant and barrier on the shaft and threads, using Loctite on the locking nuts, and installing the provided anodes.4:40 The Gori propeller features an overdrive setting designed to maintain cruising speed at lower engine RPMs, which the owners expect will increase sailing speed by approximately 1.5 knots by reducing drag.3:35 After completing the installation and anti-fouling the hull, the crew launches the boat and confirms the engine functions correctly.11:51

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