DESIGN PHILOSOPHY
ALL YACHTS ARE NOT CREATED EQUAL

BIGGER IS BETTER

Let's compare apples to apples. Some builders' objective is "to build the biggest small boat possible." This is accomplished at the yacht owner's expense, literally, by keeping hull depth to an absolute minimum while stretching the ends out as far as possible without increasing the finished interior volume. Most 155 to 160-foot tridecks built by others have the same or less interior volume as OYD's 142 or 145-foot trideck models.

In general, our vessels have noticably more volume than the competition for several reasons.

OYD's hull depths are usually deeper because we engineer proper spaces for systems and wiring. For example, we provide voids underneath cabin soles for plumbing, with accessibility to all pertinent areas.

All too often, cabins soles are set just above the tanktop, leaving just two or three inches of space for system piping. That makes access and maintenance difficult, and in some cases, impossible. Manholes are frequently located underneath marble floors in a passageway, foyer, or bathroom. This requires destruction of the marble to access the manhole.

OYD designs provide adequate distance between the subfloor and tanktop to access manholes from the side, if constrained by the layout and tank location. While it may be cheaper and easier for the manufacturer to build a shallow hull and set subfloors directly on tank tops, it results in a maintenance nightmare down the road. It is a compromise that should not be taken.

STRUCTURAL INTEGRITY

Our vessels are built "workboat tough." The adjacent image is OYD's typical aluminum structural system for semidisplacement hulls that we developed 25 years ago. Observe the continuous, deep floor arrangement throughout the innerbottom. This design yields tremendous structural integrity, that of a workboat or military vessel. It can take a beating without incident. Naturally, our vessels can be drydocked in the 100% topped off condition.

OYD 53 Meter Full Displacement Hull

OYD Typical Aluminum Semidisplacement Hull

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OYD's 142 (43 Meter) Trideck Motoryacht in the background
shown here with a Trinity 141 in the foreground

RING FRAME CONSTRUCTION

Our standard framing system on both steel and aluminum vessels is ring frame construction, as shown in the adjacent photo. OYD's built-up "T" section framing follows the contour of the hull, providing more usable interior volume compared to the flanged plate method. Note that all inside corners are radiused to allow a smooth transition and eliminate structural "hard spots."

Additionally, our deep transverse and longitudinal framing is egg-crated enhancing structural continuity.

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