Installing Handles on our Boat - S04E05 | Building Wilda

Inside an unassuming workshop shed outside Melbourne, Victoria, Australia, the ambitious shell-up completion of a 44-foot performance cruising catamaran reaches an essential operational milestone. Axel and Iuliana, the dedicated Swedish-Romanian team behind Building Wilda, are systematically transforming a bare Schionning Wilderness 1340 platform into a self-sufficient blue-water expedition multihull. Having recently cut and fitted a composite galley sink unit, the builders begin Episode S04E05 by sealing the perimeter cutout with high-density thickened epoxy to form an impenetrable moisture barrier before turning their engineering focus toward one of the most critical safety systems aboard any offshore vessel: heavy-duty handholds and grab rails.

Navigating an offshore catamaran under sail demands continuous physical security. Whether dropping off the crest of an eight-foot Southern Ocean swell or moving between hulls in heavy weather, the crew requires immediate, bulletproof points of contact. Over several demanding workshop days, Axel and Iuliana tackle the end-to-end process of laying out, fabricating, customizing, and through-bolting marine-grade 316 stainless steel handrails across companionway companion stairs and the exposed exterior coachroof. The project demonstrates the exacting composite boatbuilding standards demanded when integrating high-load mechanical hardware into advanced cored laminates.

Companionway Handrails: Ergonomic Layout and Symmetry Across Seven-Meter Bridgedeck

For the Building Wilda crew constructing the Schionning Wilderness 1340 catamaran Wilda, precision composite boatbuilding inside their shed near Melbourne, Victoria, Australia requires solving complex spatial challenges across a beam spanning more than seven meters. Transitioning from the expansive bridgedeck saloon down into the working living quarters of each hull presents a distinct ergonomic hazard while underway. The descent into the port hull leads directly past the head and shower compartment, while the starboard companionway mirrored opposite provides access to the master stateroom. Establishing secure handrails along these companionway bulkheads is vital to prevent slips and falls as crew members transition between levels.

Because the port and starboard companionways are separated by seven meters of bridgedeck floor, establishing visual symmetry by eye is virtually impossible. Axel and Iuliana overcome this challenge by establishing fixed structural baselines tied directly to the stair treads. By indexing the lower mounting stanchion against the second tread and triangulating the upper stanchion into the bulkhead corner, they ensure both 316 stainless steel handrails maintain an identical parallel pitch relative to the steps. Comprehensive dry-fit trials confirm natural grip angles before pilot holes are drilled through the sandwich bulkheads for the subsequent potting sequence.

Composite Fastener Potting: Core Excavation and Thickened Epoxy Plugs

Throughout the Building Wilda odyssey, fabricating the Schionning Wilderness 1340 catamaran Wilda adheres to the uncompromising principles of high-performance composite boatbuilding developed outside Melbourne, Victoria, Australia. When bolting heavy deck hardware to structural sandwich panels, standard mechanical fasteners cannot simply be torqued against a low-density core. Compressing structural foam or end-grain balsa under the clamping force of a through-bolt crushes the delicate core material, causing localized skin delamination and structural failure. Even more hazardous is the risk of water intrusion: should a deck seal weep, moisture will migrate into the core, initiating widespread structural rot.

To eliminate these vulnerabilities, Axel and Iuliana employ the industry-standard “drill-fill-drill” potting methodology. Initial pilot holes are drilled through the composite laminate, followed by excavating the internal core material radially outward to create an annular cavity between the structural fiberglass skins. This cavity is thoroughly cleared of core dust before being injected with an epoxy slurry heavily thickened with colloidal silica and structural high-density microfibers. Cured overnight into an unyielding solid composite bushing, clearance holes are redrilled through the epoxy plug, ensuring clamping loads transmit entirely into outer fiberglass skins while the core remains permanently isolated from water.

Coachroof Decoring Forensics: Hardwood Veneer and Balsa Core Excavation

Topside progress on Building Wilda and the Schionning Wilderness 1340 catamaran Wilda highlights the meticulous nature of custom composite boatbuilding in Melbourne, Victoria, Australia. Moving from the interior to the exterior coachroof, Axel and Iuliana prepare to mount heavy-duty safety grab rails along the cabin top to serve as primary lifelines when moving forward in turbulent seas. To ensure every mounting aperture is drilled perfectly perpendicular to the crowned cabin profile, Axel utilizes a custom black drill guide fabricated on their workshop 3D printer.

The structural composition of the Wilderness 1340 coachroof presents unique forensic complexities. To achieve exceptional stiffness across compound curvatures without adding excess weight, the designer specified a specialized sandwich panel featuring an end-grain balsa core flanked on both sides by hardwood structural veneers beneath the outer fiberglass laminates. During an inspection of the drilled and pre-filled roof holes, the builders discovered that one mounting aperture had not achieved complete epoxy filling. Rather than compromising on a weather deck, Axel used hand chisels to excavate the defective filler and stubborn wood veneer back to pristine structural fiberglass before refilling with thickened epoxy.

Hydraulic Pipe Bending: Conforming 316 Stainless Rails to Deck Crown

In the workshop of Building Wilda, completing the Schionning Wilderness 1340 catamaran Wilda demands versatile metalworking skills alongside composite boatbuilding expertise in Melbourne, Victoria, Australia. When dry-fitting the exterior stainless steel grab rails to the coachroof, Axel encountered an immediate mechanical challenge. The handrails featured factory-welded mounting flanges that were perfectly flat and aligned in a single plane, whereas the catamaran coachroof possesses a distinct structural camber designed to shed green water offshore.

Attempting to force flat handrail stanchions down against the crowned coachroof using fastener torque would induce severe localized pre-stress into the composite skins and distort the mounting bases, inevitably leading to seal failure. Axel borrowed an industrial hydraulic pipe bender, positioning the stainless steel rail within radiused dies and pumping the manual ram in subtle increments to induce controlled plastic deformation. Introducing a gentle longitudinal curvature along the central span aligned the mounting flanges flush against the coachroof contour, ensuring the grab rail sits naturally without mechanical strain.

Bedding, Backing Plates, and Fastener Customization

The installation phase on Building Wilda for the Schionning Wilderness 1340 catamaran Wilda underscores the rigorous standards of modern composite boatbuilding practiced outside Melbourne, Victoria, Australia. With all apertures potted and dry-fits verified, the builders prepare the surfaces for permanent installation. Axel and Iuliana thoroughly vacuum away all composite swarf and degrease the mounting footprints with solvent to guarantee optimal adhesion for the bedding compound.

Watertight security is achieved using Sikaflex marine polyurethane adhesive sealant, applied generously under each flange and around fastener shanks to guarantee continuous squeeze-out. On the interior underside of the composite deck, Axel installs heavy-duty backing plates to distribute dynamic shock loads across a wide area of the inner fiberglass skin. When inventory bolts proved excessively long, threatening to bottom out against internal cabinetry, Axel measured, cut each fastener to length with a cutoff wheel, and chamfered the threads. Bedded and torqued under the watchful eye of boatyard canine Cookie, the handrails stand rock-solid.

Systems Integration and Blue-Water Preparedness

Every structural fitting completed on Building Wilda brings the Schionning Wilderness 1340 catamaran Wilda closer to open-water autonomy through disciplined composite boatbuilding in Melbourne, Victoria, Australia. Handrails may appear to be straightforward deck fittings, but within the context of a high-performance multihull, their successful integration represents a vital link in vessel seaworthiness. Wilda is designed not merely for coastal hops, but for demanding passages across the rough waters of Bass Strait and extended global voyages.

The installation of topside safety rails dovetails directly into the broader systems architecture of the catamaran. Future phases will see the installation of a 3kW+ rigid solar arch over the cockpit and the integration of Axel’s custom retractable electric auxiliary propulsion drives. Because the electric drive system utilizes custom lifting pods with hydrodynamic hull-lids to eliminate drag under sail, crew mobility on deck and through companionways must be effortless and fail-safe. By unhesitatingly re-potting flawed core cavities and customizing hardware, the crew ensures their vessel meets commercial survey standards before launching into Port Phillip Bay.

Schionning Wilderness 1340 Hardware & Composite Potting Matrix

Detailed engineering documentation on Building Wilda for the Schionning Wilderness 1340 catamaran Wilda provides valuable benchmarks for modern composite boatbuilding projects in Melbourne, Victoria, Australia. The following table synthesizes the vessel design parameters, composite fastener potting protocols, and stainless steel hardware standards utilized during the handrail installation in Episode S04E05.

Frequently Asked Questions

The following frequently asked questions address core technical inquiries regarding the Building Wilda project, Schionning Wilderness 1340 catamaran Wilda, composite boatbuilding practices, and handrail installation in Melbourne, Victoria, Australia.