Dynamic Positioning Data - General
- Last UpdatedDec 18, 2025
- 2 minute read
This property page is used to set up general information, applicable to all of the Dynamic Positioning calculations, such as title, draught, windage areas
Title
The title of the Hydrostatics Node may be changed via this property page.
Particulars
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Lpp |
Included here for completeness. This value may not be edited. To change this value, use the Ship Data - Main Dimensions dialog. |
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Beam |
Included here for completeness. This value may not be edited. To change this value, use the Ship Data - Main Dimensions dialog. |
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Draft |
Vessel draft use in the Dynamic Positioning calculations. This value is used to calculate the current forces (from the non-dimensional current coefficients). It is also used in calculating the shallow water corrections. |
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Displacement |
The displacement in tonnes. This value is used to calculate the wave drift forces (from the non-dimensional wave drift coefficients). |
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Default |
Check this box to calculate the displacement from the Mainhull faceted definition. |
Windage Areas
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Transverse Windage Area |
The transverse windage area of the vessel (at the specified draught). This value is used to calculate the wind forces (from the non-dimensional wind coefficients). |
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Longitudinal Windage Area |
The longitudinal windage area of the vessel (at the specified draught). This value is used to calculate the wind forces (from the non-dimensional wind coefficients). |
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Default |
Check this box to calculate the longitudinal windage area from the Profile Points dialog. |
Semi-submersible Data
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Semi-Submersible Data |
Check this box for semi-submersibles. Note: The data described below is only enabled if this option is set. Also, if Default Diagram is chosen on the Dynamic Positioning Data - Output page, then a different diagram is given in the output. |
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Beam of Single Hull |
The beam of a single hull. This value is only used to draw the default Thruster-Rudder Configuration Diagram. |
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Transverse Underwater Area |
The transverse underwater area of the vessel (at the specified draught). This value is used to calculate the current forces (from the non-dimensional current coefficients). |
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Longitudinal Underwater Area |
The longitudinal underwater area of the vessel (at the specified draught). This value is used to calculate the current forces (from the non-dimensional current coefficients). |
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Default |
Check this box to calculate the longitudinal underwater area from the Profile Points (see Edit - Other Data ). |