Expedition Engineeringvideo

Carbon Fiber Hardtop Bimini: The Ultimate Rain Catcher and Solar Power for Our Sailboat (9)

July 7, 2024 · 16 min · 130K views

What this video covers

Fabricating a custom carbon fiber hardtop bimini requires precise structural planning to balance solar capacity, rain collection, and windage. The project begins by mounting temporary arch legs to the stern to establish the hardtop’s curve and dimensions.0:36 Initial vacuum bagging attempts fail because the non-airtight foam mold causes the laminate to distort; the team switches to manual glassing by cutting the carbon fiber into smaller sections to achieve the necessary radii.7:46 Trimming the aft section of the hardtop reduces the overall footprint, which increases structural rigidity and prevents the structure from appearing oversized.10:04 The design incorporates an internal grid structure for strength and a built-in rain trough.6:10 Once the two halves of the rear section are glassed and joined, the assembly provides a stable platform for future solar panel installation.13:47 Careful leveling of the mold and iterative fairing are essential to ensure the final composite structure remains stiff and aesthetically integrated with the boat's existing lines.11:18

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