Itll be of interest to readers here that enjoy technical.

Catamaran hull shape design. About Hull Shapes in Multihull Design. As a result it was decided that the original hull shape would be used and if the problem of excessive rocker was overcome this could be treated as a worst case scenario and even better results could be expected for applications to hull shapes with less rocker. You can design a sailing catamaran wider or narrower if you like.

The benefits of purchasing a design from Design Catamarans Ltd after decades of studying catamaran hull shape performance research and development design and production this company specialises in designing catamarans and nothing else. Being partial to nacra hull designs I modeled my hulls after the nacra 50 sharp tall bows with a rising stern and a long skeg instead of dagger boards. Long time multihull sailor Ian McGehee who is a regular contributor at smalltrimarans with his insightful commentary sent the following to me a few days ago.

Using two hulls bridged by a deck the catamaran design provides additional beam increased stability and at the same time increased speed the slim twin hulls have little drag. It can make to windward without keels or boards - just - but its more maneuverable and makes less leeway with them fitted. Multihulls are sophisticated structures and true modern miracles.

The boat does 50 mph top with twin 90hp motors and cruises happily at 30 mph with better than 3 milesgallon fuel consumption. The desirable height is proportional to the catamarans beam as measured from hull center lines. How Hull Volume Bow Shape Affect Performance Safety - YouTube.

The effectiveness of this hull shape is ideal for cruising cats as well as racing boats and we have been using it on a wide range of designs including the new Raku series of cats. Design Catamarans Ltd can offer a full set of drawings comprising General Arrangement drawings. 1 Efficient planning shape foil assistedCorsair 22 Foiler.

Lengthbeam ratio of the catamaran LBRC is defined as follows. Make it too wide and you end up pitch-poling with too much sails on. The beam between hull centers is named B CB Figure 4 and remember that the overall length of the hull is L H.