The Data menu contains commands for calculating and changing the numerical data that defines the design.

A variety of metric and imperial units may be specified.

Irrespective of the default units specified, the Size, Grid Spacing, Girth, and Markers options, and data input windows will accept dimensional data in any units. For example, if the default units were metres, all of the following input would be accepted and converted accordingly:

3 (interprets as 3.00 meters)

2.5c

33cm

328mm

650.44 mil

6ft 3.1in

5f 5i

11.25 feet

5’4"

4 inches

3.25"

Allows you to specify how you want to display the LCB and LCF position and how the hydrostatic calculations should be carried out.

See Hydrostatic Coefficient Calculation Parameters on page 148 for more information.

This menu function allows you to specify the positions of Sections, Waterlines, Buttocks, and Diagonals.

See Setting up the Grid on page 19 for more information.

Choosing this function allows you to set the positions of the Fore and Aft Perpendiculars, the DWL and the Baseline of the design; the Midship position is altered indirectly since it is assumed to be mid way between the Fore and Aft Perpendiculars. All values are entered relative to the Zero Point. However, it may be that the Zero Point is set to the position of one of the elements in the Frame of Reference. In this case the Zero Point is not updated until you have clicked OK in the Frame of Reference dialog.

See Setting the Frame of Reference on page 14 for more information.

This function sets the longitudinal and vertical reference point for all measurements.

See Setting the Zero Point on page 16 for more information.

Lets you specify the type of vessel you are modelling. See Setting the Vessel Type on page 17 for more information.

Measures halfgirths or locates the position at which a particular halfgirth occurs.

See Calculate Girth on page 148 for more information.

When Calculate Offsets is selected, the Offsets window will be filled with offset data for the grid that has been specified via the Grid Spacing command.

See Offsets Window on page 53 for more information.

This command allows you to select the station for which the offsets are displayed in the Offsets window. This item is available only when the Offsets window is active.

Calculates the areas and centres of the surfaces in the design.

See Calculate Areas on page 149.

Calculates the upright hydrostatics of the design at the DWL.

See Hydrostatics on page 146 for more information.

Choose this command to solve the calculations currently displayed in the Calculations window. The dialog box that appears can be used to set the longitudinal extent of the hull to be used in the calculations.

See Calculations Window on page 60 for more information.

Activates the Parametric Transformation dialog, which allows you to manipulate an existing design.

See Using Parametric Transformation on page 167 for more information.

If you have a license for the America's Cup Rule software, this menu item will be available. Maxsurf will automatically measure your hull and calculate its rating under the America's Cup Rule.