Sailing SV Delosvideo
STOP the PROP đš + A BIG REVEAL! (Building Our Own Aluminum Catamaran Pt. 33)
18. april 2025 · 19 min · 263K visninger
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The crew building their custom aluminum catamaran installs a shaft brake system to allow the propeller to feather while sailing, reducing drag and protecting the hydraulic transmission from spinning without lubrication.2:10 The design utilizes a disc brake mounted to the Sigma drive, featuring a floating caliper bracket fabricated from 50mm by 10mm flat bar.5:18 To ensure the brake remains centered on the disc despite engine movement or pad wear, the bracket incorporates acetal bushings and M16 bolts that allow the assembly to slide laterally.9:02 Additional construction progress includes installing floor panels and hatches on the starboard side, as well as finalizing the layout for the master cabin head.16:00 The team decides to shift bulkhead nine aft to optimize cabin space and toilet placement.10:28 A floating caliper mount successfully accommodates engine vibration and thermal expansion, ensuring the brake engages without rubbing the disc.15:25
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