Sampson Boat Covideo
Cutting for Propeller / Boring for Prop-Tube ( Wooden Boat Rebuild / EP80)
5 settembre 2020 · 24 min · 598K visualizzazioni · Port Townsend
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Leo Goolden restores the 110-year-old yacht Tally Ho by cutting a propeller aperture and boring a stern tube hole through the vessel's purpleheart stern post. To ensure the propeller shaft aligns perfectly on the centerline, he constructs a custom boring jig with guides on both the interior and exterior of the hull.18:55 After an initial, less effective drill bit fails, he uses a larger, adjustable boring bar that allows for incremental cutting and repositioning of the blade.18:54 This tool successfully bores a 31-inch-long, 2-inch-diameter hole through the dense timber.20:05 The project also involves lofting and templating the raked transom to ensure symmetry and fairing the hull lines for future planking.1:13 The choice to maintain a centerline propeller position, rather than an offset design, prioritizes protection against fouling in remote cruising areas over the hydrodynamic benefits of reduced turbulence.11:01
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