Virtual Marine Arsenal

AHVPP/1 is a tool for predicting the performance of sailboats. In essence, it is a mathematical model of a sailing yacht.

Autopower enables optimization of hull parameters based upon 12 independent resistance and propulsion methods for displacement, semi-displacement, planing hulls and catamarans.

FreeShip Plus modeling kernel is purely based on subdivision surfaces. It uses a mixture of loop subdivision and Catmull Clark subdivision surfaces called quad-triangle subdivision. This enables the user to design the most complex surfaces with only one surface.

Maxsurf Resistance module estimates the resistance and power requirements for any Maxsurf design using industry standard prediction techniques. Calculation methods covers; Savitsky, Lahtiharju and Blount & Fox for planing vessels, Holtrop and Compton for fast displacement hulls, Fung and Series 60 for ships, van Oortmerssen for full form hulls and Delft systematic yacht series for sailing yachts.

Maxsurf VPP utility provides sailing performance analysis for yachts in a variety of sailing conditions and produces performance polar curves to show predicted speeds.

NavCad is for the prediction and analysis of vessel speed and power performance. It also provides for the selection of suitable propulsion system components; engines, gears and propellers. NavCad can be used for the design and analysis of virtually any type of monohull or catamaran; from large displacement vessels to fast planing craft.

PIAS, which is an acronym for Program for the Integral Approach of Shipdesign, is an integrated computer program for ship design. It comprises modules for the design of hull and internal geometry, and for the computation and assessment of intact stability, damage stability, longitudinal strength, resistance and propulsion.

The Power Prediction Program calculates the powering requirements of vessels covering a large range of hull forms from merchant ships to planing vessels, using a variety of analytical and regression methods.

WinDesign⁶ VPP represents a complete revision of this industry standard software and is available as two seperate but complimentary modules Monohull yacht type and Multihull yacht type.