Project Brupegvideo
Final Wing & Hinge Fabrication - Project Brupeg Ep. 138
April 30, 2020 · 45 min · 42K views
What this video covers
Fabrication of custom wing structures for a converted fishing trawler requires precise hinge alignment and structural reinforcement to manage thrust loads. To ensure the wings remain stable during both forward and reverse movement, the crew modifies the stainless steel hinge assemblies to function as thrust bearings.9:03 They weld triangular gussets made of 2205 stainless steel to the hinges, triangulating the load against the hull’s doubler plates to prevent sideways movement and mechanical binding.33:36 Because the hinges possess inherent slop, the team intentionally misaligns them slightly during the tack-welding process; this ensures the wings fit loosely when deployed but tighten as they reach the fully lowered position, preventing vibration and clanking while underway.23:30 The project involves extensive grinding and cutting of thick stainless plate using 5-inch angle grinders with 1mm cut-off discs, as the material exceeds the capacity of their plasma cutter.17:00 Proper alignment and reinforcement of these heavy-duty hinges are essential for long-term durability in a marine environment.
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