.... Evaluating the optimum performance profile of the newer equipment allows us to then establish what modifications to key hull form characteristics would best complement this new performance profile. modification hull form performance gain appendage rehab chine displacement hull-form modification...

... Composite materials are good candidates for hydrofoils manufacturing, ensuring a good balance between strength and weight. In the high performances sailing yacht domain, hydrofoils are thin structures, highly loaded that experience significant displacements. This study investigates...

...' catamaran is featured. consideration configuration superstructure displacement designer calculation requirement demihull airflow catamaran transverse recreational catamaran sailing performance accommodation sailing catamaran catamaran design headroom yacht water part saloon...

... shows a reduction in maximum stress by 22% compared to the initial design; this was achieved with only 11% (4kg) gain in fiber weight. sailing conditions maximum strain optimised fibre layout displacement sail shape thickness batten aerodynamic load semeraro sailplan fibre weight...

... = ( T y / T s ) d . Thus only the ratio of the periods and the suspension spacing need be measured. Measurements of the normal mode periods of the double pendulum motion when the suspension is displaced in heave allows the height of the center of mass and the pitch gyradius k p to be determined...

... This paper presents new methods for real time estimation of leeway and ocean current, which are based on boat displacements. We propose two solutions that rely on several types of Kalman filters. The first one uses the empirical leeway definition and allows finding the key parameter...

... impacting the performance of a foiling Moth. Specifically: - the lift and drag was measured for of various home built and commercially available T-foil configurations, - the hydrodynamic drag of a hull was measured at various displacements, and - the aerodynamic forces (side force and drag) were measured...

... & gas ecole centrale froude number displacement length froude number cfd code hull mesh icare computation vertical force evaluation reva solver free surface condition sailing yacht isis tank test THE 19th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 20-21,2009...

... learning artificial intelligence tack objective function displacement simulation yacht autopilot optimization prediction history proceedings coefficient geometry canoe body symposium true wind angle equation boat wind speed maneuver THE 18th CHESAPEAKE SAILING YACHT SYMPOSIUM...

... better performance. Each of the objectives requires an index to measure the performance of the candidate. artificial intelligence optimization problem froude number displacement gulet hull form dimension resistance index resistance resistance coefficient hull charactersitic gulet...

... is compared with that of models for which a single parameter has been varied. Variations concern the bow shape, the stern overhang, the prismatic coefficient, the midsection coefficient, the BWL/TC and LWL/BWL ratios, the displacement. The comparisons in some cases confirm already known trends, like...

... were used as a baseline. Finally, validation and verification was performed with the shareware program PCSAIL. load cell towboat twist parameter displacement knot resistance towline surface warfare center carderock division sail coefficient setup coefficient vpp daggerboard tow test...

...-offs are discussed. ballast configuration displacement principal characteristic knot canting-ballast configuration canting-ballast boat movable ballast configuration stability fixed-ballast configuration water-ballast boat performance potential configuration time difference morning...

... The evolution of an all-round 6-metre hybrid displacement/flying day-sailing catamaran is described. A 4.9m prototype was a relatively conventional, but wide, beach-cat type platform with a single fractional rig. Fitted with mechanically incidence-controlled horizontal lifting surfaces beneath...

... displacement polynomial expression resistance residuary resistance keel hull contribution experiment appendage dependency geometry fn 0 viscous resistance yacht hull series formulation interaction - ·EDTHE THIRTEENTH CHESAPEAKE SAILING YACHT SYMPOSIUM Appendage Resistance of a Sailing Yacht...

... Project established in an attempt to quantify the sensitivity of radius of gyration on yacht performance. Also, these results were to be used to validate CFD estimates of added resistance. model test wavelength displacement accuracy total resistance resistance calibration yacht hull...

... A discussion of some concepts that apply to the development of small high speed sailing craft in general and to sailboards in particular and an analysis of the design and performance of ordinary, everyday sailboards as well as high speed ones. displacement apparent wind knot yacht...

.... displacement knot selector yacht stability iteration high performance cruising ketch red herring designer sail area spectrum boat ballast THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS One World Trade Center, Suite 1369, New York, N. Y. 10048 Paper to be presented at the Chesapeake Sailing...

... constant adjustment to maintain fair racing. This paper traces some of the matches that have been engaged in what Nathanael G. Herreshoff referred to as "a subject never to be fully settled", with emphasis on the current status of the International Offshore Rule. displacement draft correction yacht...

...-test series using a single model ballasted to several different displacements is proposed to predict surfing performance. Numerical solutions are presented for the case of sinusoidal progressive waves, using an assumed resistance function and coefficients representing a "Cal-40" class sailing yacht...