Perda Rubja Composite

28/02/2026

“CASCO Y ESPEJO”

Hull (“Casco”)

The damaged areas were fully opened, with complete removal of compromised laminate and core material.
The original balsa core was eliminated and replaced with Corecell M130 structural foam, improving impact resistance, durability and long-term stability.

The monolithic assembly fl**ge was realigned and rebuilt to the original laminate thickness, restoring structural continuity at the hull–deck interface.

The objective was not simple structural closure, but precise reinstatement of global stiffness and torsional continuity across the hull shell.

Transom / Deck Area (Espejo)

A new transom/deck section was manufactured in a dedicated mold to accurately reproduce geometry and laminate architecture.

After removal of the damaged structure, primary laminate interfaces were prepared with controlled scarf ratios to ensure progressive stress transfer and eliminate abrupt stiffness transitions.

Bonding was executed using SPABond structural epoxy adhesive, while laminate rebuild and integration were carried out with Ampreg 36 epoxy system.

Structural tapings were executed using two layers of ±45° carbon biaxial, selected to efficiently restore shear transfer while maintaining strict weight control.

26/02/2026

“THOUGH TUGA”. Complete structural reconstruction of a damaged deck section and primary bulkhead, executed with a load-path driven approach.

All compromised laminate and core materials were fully removed.
The repair strategy was developed to restore global stiffness and ensure correct load transfer between deck, bulkhead, and surrounding structure, without exceeding original weight parameters.

A dedicated female mold was produced to replicate the original geometry and fiber architecture.
Both the deck section and the structural bulkhead were manufactured via vacuum infusion, allowing tight control of fiber volume fraction and minimizing excess resin content.

The reinstallation followed a defined secondary bonding strategy:

– substrate preparation with controlled surface roughness
– structural bonding using Spabond epoxy adhesive
– engineered scarf transitions with controlled scarf ratios to guarantee gradual stress redistribution
– structural epoxy vacuumed tapings with Ampreg 36 to reinstate shear continuity and bending stiffness across interfaces

Tapings were dimensioned and oriented to restore primary load paths, ensuring proper transfer of compression, shear, and local bending loads between the reconstructed bulkhead and the deck laminate.

The objective was not only to repair the damage, but to re-establish structural continuity with predictable mechanical behavior and optimized laminate efficiency.

17/02/2026

The 200 mph was talking about were not on a Jetski, but on rihb that rammed this offshore racer. In here day α and day ω.
More pictures of the repair process on the following posts.

14/03/2025

14/03/2025

65 feet Maxi keel stock machining