So all multihulls should have a Cp between 061 and 065.

Best catamaran hull design. The deep V is a simple to build hull shape that matches the human body as it is narrow low down and wider high up so it is a good choice if the accommodation is only in the hulls. Perhaps the best example of a properly designed planing power catamaran is the Arrowcat designed by Roger Hill. Catamarans As one of the oldest hull shapes imagine two logs tied together catamarans occupy a small niche in America and larger niches in some other areas of the world.

Prowler Semi-displacement Prowler VT Vapour Trail Growler Whisper The semi-displacement hull is a slim hull shape with a canoe-end underwater aft meaning this hull simply. For this exercise however were heralding the original Manta 42 which won the Best Value Overall prize in CWs 2001 Boat of the Year contest. The hull shapes are.

The mainstream design office catamarans that I see look that way because those gold plate offices are most familiar with designing single hull vessels. Yes catamarans are significantly more stable than monohulls due to their twin-hull design more evenly distributing the force of the rough waves slapping on the sides of the boat and the tunnel created to pad the boat with a layer of air surrounding it. However the key to Catamaran design is you need a higher Cp if you want to sail fast.

The first catamaran I ever sailed an ocean passage on was a Shuttleworth 44. This boat designed by All American Marine and Teknicraft Design is an example of the newly popular catamaran style for large ferries. And fine hulls have more wetted area so you have more drag in light air where friction resistance is the primary drag factor.

Twin 50hp outboards will cruise this catamaran at 17 knots using 1 litermile or 38 miles gallon with top speed of 21 knots thanks to a fineness ratio of 15 to 1. Because of design innovations like curved daggerboards and the hydrofoils performance on cruising catamarans has improved tremendously but catamaran speed is relative. The design team has broadened the beam of the boat.

They know what works for a single hull boat and the cats they design are even better boats. Schionning Designs use three hull types for our range of power catamarans each with different design and performance characteristics. These catamarans arent built for performance but on a trade wind route with 20-25 knots of true wind on the stern the Lagoon 42 will do 7 to 8 knots in comfort.