Project Brupeg · video

What this video covers

Fabrication of heavy-weather wing stabilisers for the 38-foot trawler Brupeg requires significant structural modification and welding. The team identifies a geometry error in the initial 6mm steel wing plates, which feature excessive curvature that misaligns the leading-edge pipe. To correct the water flow profile, they replace the original 50mm pipe with a smaller-diameter, heavy-wall pipe that sits flush against the skin. Internal strengthening involves adding 100mm by 16mm flat bar supports and continuous welding along the internal structure. Sandblasting the steel to white metal ensures weld penetration, while the team uses a gas mix of 75% argon, 10–20% CO2, and 5% oxygen for mild steel welding. Future plans include installing hydraulic arms modelled after excavator pivot ratios to raise and lower the wings. Despite heavy rain flooding the workshop floor, the crew continues work on exhaust shrouds and wooden templates for the hydraulic arm mounts. Proper alignment of structural members and surface preparation are critical for maintaining the integrity of the wing's hydrodynamic shape.

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