Runabout Trident 32
A runabout is any small motorboat holding between four and eight people, well suited to moving about on the water. Runabouts can be used for racing, for pleasure activities like fishing and water skiing, or as a ship's tender for larger vessels.
Air flow around a planing craft has been modelled using the same methodology as the one presented and explained for the 15m motor yacht. Computations have been performed with a fixed trim. Usefull results like drag resistance, lift and moments help naval architects to improve and optimize their design shapes. Left and right side pictures show pressure contours around the exposed part of the planing craft at a targeted speed of 48 knots.
Hovering over first thumbnails will add streamlines. Streamlines highlight how the air flow passes over the windshield. We also notice the roll up of the flow aft the transom, similarly to wingtips vortices for airplanes.
More detailed information about this runabout Trident 32 can be obtained from the Corsier-Port Shipyard and sebschmidt architecte naval sàrl.