In just three years, Sea Force IX has made its mark in high-end sportfishing yachts. Its first model, the 81.5, clearly met the company's seemingly lofty goals of achieving exceptional standards for design, construction, and performance. Now Sea Force IX ups the ante with the 91.5; the extra ten feet affords even grander proportions in her interior and a magnificent, sweeping sheerline that seems to go on forever. She's offered in two bridge configurations: The command bridge model features a fully enclosed, climate-controlled bridge deck and helm station, while the sky bridge version boasts an open flying bridge with a full helm station atop the enclosed bridge deck.
But there's more to this yacht than meets the eye. Her hull, stringers, structural bulkheads, and deckhouse are molded with high-temperature resins. All laminates are vacuum-bagged then oven-baked to achieve optimum resin content and full chemical cure for a flawless surface. Topsides are primed and painted with multiple coats of Awlgrip urethane. Want a dark hull? No problem. And cored construction, along with epoxy resins in all secondary bonds, assures maximum stiffness and strength with minimum weight.
Among the features that do meet the eye are stunning teak toerails, complemented by a quarter-sawn, natural teak sole on the "leisure" deck that overlooks the cockpit. The cockpit itself is all business, with two transom baitwells, a stainless steel freezer and ice bin, in-sole fishboxes, and all the proper accoutrements of a serious battlewagon.
The 91.5's foundation is a highly refined, modified-V hull form with a fine entry. Partial lifting strakes shed spray, while a tapered chine becomes wider at the transom to provide lift at the stern. Her hull form was extensively tested to verify performance in calm water and in waves.
Sea Force IX
This article originally appeared in the March 2007 issue of Power & Motoryacht magazine.