Forceful paddle tug update
Following the installation and internal resin‑bonding of the paddle boxes, I’ve moved on to the next structural stage of the build. The sponsons have now been fully installed: first with an adjustable Isopon bedding layer to set the geometry precisely, and then with a final resin bond to lock them into position. This ensures both sponsons sit perfectly parallel to the paddle‑box fronts and follow the hull sheer without any stress in the structure.
To support the outermost contact points, I’ve added additional sponson brackets. These were fabricated and positioned to pick up the farthest edge of each sponson where it meets the hull, giving the assembly a more robust and true alignment. With these extra brackets in place, the sponsons now sit firmly on their full support structure and are tied cleanly into the hull and paddle‑box bracket line.
With the sponsons secured, I’ve added the rubbing strake along the hull edge. This has been bonded using two‑pack Araldite epoxy to give a stable, long‑term joint. Once cured, the cork strip and the underside of the sponsons received a thin coat of finishing resin to seal the surface and prepare it for paint. A second coat will be added where needed to achieve a smooth, uniform finish.
I’ve also sealed all exposed end grain on the paddle boxes, including the internal faces and the slotted front panels. This stabilises the thin plywood sections and prevents any movement or fibre lift during later sanding and painting. The paddle‑box fronts are now ready for final surface preparation before priming.
This stage brings the hull, sponsons, and paddle‑box assembly together as a single, stable structure. With the geometry now fixed, the additional brackets installed, and the surfaces sealed, the model is nearly ready for the next major milestone: exterior preparation and hull painting.