Definition
Carbon composite is a hull and structural construction method that uses carbon fibre fabrics combined with epoxy resin, typically built by vacuum infusion or pre-preg lay-up. It produces a lighter, stiffer panel than glass-reinforced plastic at a higher unit cost, and is the dominant material in performance and weight-critical tenders.
Background and use
Carbon's appeal in superyacht tenders is straightforward: every kilogram saved in the tender is a kilogram less load on the davit, the chocks, and the deck structure of the mothership. A 9m carbon limousine tender can come in 30-40% lighter than the same hull in solid glass. That weight delta moves the tender from needing an A-frame davit to a single-arm crane, or from a 5-tonne crane up to comfortable margin on a 4-tonne unit.
Two manufacturing routes dominate. Vacuum infusion lays dry carbon fabric into the mould, then draws epoxy resin through the laminate under vacuum; it gives a clean fibre-to-resin ratio and good repeatability. Pre-preg uses carbon fabric pre-impregnated with resin, laid up by hand and cured in an autoclave at temperature and pressure; it gives the highest mechanical properties but requires capital equipment most boatyards do not own. Pascoe, Hodgdon, Wally Tender, and Hinckley are among the yards working in serious carbon construction for the tender and chase-boat market.
The trade-offs are cost (often 1.5-2x the GRP equivalent), repair difficulty (carbon damage requires skilled composite repair, not gel-coat patching), and impact behaviour. Carbon is stiff but brittle; it tolerates flex poorly and can fail catastrophically rather than progressively under heavy impact. Most yards mitigate this with hybrid lay-ups that mix carbon, glass, and aramid (Kevlar) for impact-tolerant zones.
Related considerations
- Confirm core material (PVC foam, end-grain balsa, Nomex honeycomb) as well as the skin; it drives stiffness and water-ingress risk.
- Carbon hulls require yards or refit shops with composite-repair expertise; not every boatyard can handle it.
- Galvanic isolation matters: carbon is conductive, and direct contact with stainless or aluminium fittings without isolation drives corrosion.
- UV exposure degrades the resin matrix faster than glass; carbon hulls usually carry painted finishes rather than gel coat.
- Resale value premiums for carbon are real but smaller than the build-cost premium suggests; specify carbon for performance reasons, not for residuals.