A crescent step hull device is disclosed for aluminum or fiberglass pontoon boat hulls to create a less wetted surface to reduce drag for a more fuel-efficient bottom and better performance. The crescent step hull device comprises a body component, which is the hull, that features notches and/or added-on steps to the bottom, thereby introducing air to the wetted surface, which will reduce the surface tension or drag and improve the overall efficiency of the pontoon boat. Specifically, the device comprises 1, 2, 3, or 4 cross-sections cut into (i.e., notched) or added onto each hull from approximately ¼″ to 4″ in size. Thus, the hull can have a notched step, an added-on step, a parallel step, or combinations of the three.
Crescent Step Hull Device
06.02.2025
Patent
Elektronische Ressource
Englisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
Engineering Index Backfile | 1954
|HENRY – Bundesanstalt für Wasserbau (BAW) | 1968
|Self-landing and crescent wing
Engineering Index Backfile | 1954
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