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The moments are split into the hydrodynamic body frame channels | The moments are split into the hydrodynamic body frame channels | ||
(with the same sense as the normal body frame moments): | (with the same sense as the normal body frame moments): | ||
* '''Pitch''' | * '''Pitch''' (angle: positive is nose up) | ||
* '''Yaw''' | * '''Yaw''' | ||
* '''Roll''' | * '''Roll''' (angle and moment: positive is left wing up) | ||
The properties determining the location and orientation of the vessel w.r.t the the water surface and stream are: | The properties determining the location and orientation of the vessel w.r.t the the water surface and stream are: | ||
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* <nowiki>hydro/beta-deg</nowiki> - angle between the vessel's velocity vector through the water and its longitudinal axis. Analogous to aerodynamics/beta-deg. | * <nowiki>hydro/beta-deg</nowiki> - angle between the vessel's velocity vector through the water and its longitudinal axis. Analogous to aerodynamics/beta-deg. | ||
* <nowiki>hydro/pitch-deg</nowiki> - angle between the vessel longitudinal axis and the water surface (ground plane). | * <nowiki>hydro/pitch-deg</nowiki> - angle between the vessel longitudinal axis and the water surface (ground plane). | ||
* <nowiki>hydro/roll-deg</nowiki> - angle between the vessel | * <nowiki>hydro/roll-deg</nowiki> - angle between the vessel transverse axis and the water surface (ground plane). | ||
* <nowiki>hydro/v-fps</nowiki> - The vessel's total speed relative the water. | * <nowiki>hydro/v-fps</nowiki> - The vessel's total speed relative the water. | ||
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