He has a lot to say on the subject of catamaran hull design.
Catamaran hull weight. Hull 1m x 1m x 2760kgm3 x 10mm 2760 kgm2 Keel 1m x 1m x 2760kgm3 x 20mm 5520 kgm2 Sup 1m x 1m x 2760kgm3 x 7mm 1932 kgm2 This means that the estimated weights are besed on the following thickness for a gamma aluminum 2760 kgm3 Hull 10 mm Keel 20 mm Sup 7 mm OK. The speed a catamaran can go is entirely dependent upon the hull design weight of the vessel the strength of propulsion be it wind or powered and so on. Agility may be hindered by an excess of weight but.
The engine power needed for the catamaran is typically 4 kWtonne and the motoring speed is near the hull speed so. The weight pro square meters is as follows. Typically a 35ft plywood hull owuld be built in 9mm 38in plywood which weighs about 1lbsqft.
SF 82 10 3 SF 175 mMOC LHBCB. Customers are often told that catamarans have a history of bad performance in a head sea making the ride uncomfortable or even dangerous. Vessel approaches shore to embark early catamaran yacht design class.
A boats hull shape and the distribution of volume are key factors in determining how it will behave in varying wind and load conditions. Choose displacement catamaran hulls by designers experienced in catamarans. If the boat is longer it generally means it a faster boat.
The underwater characteristics of a vessel are responsible for allowing a multihull and its cargo to travel through the water. I had just about finished this article when the then latest issue of Professional Boatbuilder arrived. Hulls that are as narrow as possible to carry the weight will reward operators with great economy and a great ride.
Finer hulls are more efficient at high speeds but as weve just seen suffer from more WSA and so for normal cruising catamarans in average conditions a ratio of 111 - 131 seems optimum. Catamaran Myth 9. Our catamarans are constructed from high-tech materials and fitted with the latest generation performance hardware with overall weight from 22 to 28 tons dry depending on your specification.