Auxillary Sails Added to Ocean 55

55' steel fuel-efficient sail-assisted ocean-going motor yacht. Fuel tankage of 1700 usg will allow a cruising range approaching 5000 miles at 7 knots. The 2006 commission was updated recently with a 833 sq ft ketch sailing rig to provide added fuel savings, increased range, and roll stabilization without the underwater drag of fins or paravanes. The sails are individually small and easily handled, and the vertical clearance is still less than 50’ for Intracoastal Waterway travel.

Powering and Systems Design

  • Re-powering. Predicting performance with new power or propulsors.

      Case study for consulting, drawings for hull modification, trim and balance, and jet installation for high-speed rescue vessel

      Consulting, drawings for hull modification, trim and balance, and jet installation for Gray Marine, for their high-speed rescue vessel, Vessel Assist Nanaimo.


      Hull modification and jet installation for high-speed rescue vessel

  • Systems Design

      Case study for consulting, drawings for hull modification, trim and balance, and jet installation for high-speed rescue vessel

      Consulting, drawings for hull modification, trim and balance, and jet installation for Gray Marine, for their high-speed rescue vessel, Vessel Assist Nanaimo.


      Hull modification and jet installation for high-speed rescue vessel

Tad Roberts