The righting moment of catamaran Nm caused by the boat size is.

Catamaran hull design formulas. The basic form is one of a fine entry bow and a flat box like stern section with 850mm maximum demi-hull beam giving a length to beam ratio of 12351 for our 11m hull. This resistance component is a result of the energy required to produce the spray. 214 Spray Resistance.

The DS16 is approx 55 when flying a hull. And then put the LCB in the right place. The formula for catamaran hull speed is 134wetted length12.

The design exercise that led to the offshore capable Antares 44 had to address the needs of a US catamaran market concentrated on the east coast and Caribbean zones renowned for their coastal cruising opportunities. However this drag formula is generally not the limiting factor for catamaran hull speed. Near six the catamaran has a modern sandwich construction.

Kurt Hughes Multihull Design - Catamarans and Trimarans for Cruising and Charter - 21 Power Cat The ultimate multihull design and building resource - catamarans and trimarans to 150 feet Wooden Boat Building Wooden Boat Plans Boat Building Plans Small Fishing Boats Small Boats Lyman Boats Hull Boat Porsche Power Catamaran. Oct 13 2020 - Part 2. If offshore safety features can be incorporated into a design that you can not only live with but enjoy why not take them.

At last we can do our displacement estimation. So a multihull should be at least 061 and a heavy displacement multihull a bit higher still. When planing a monohull will exceed its hull speed.

In order to do that it must get higher as the space gets wider. So all multihulls should have a Cp between 061 and 065. I have given this design the acronym SPEED standing for Small Power Extended Efficiency Displacement.