V-bottom planing boat with lifting recesses
US4722294A · kind A · utility
9Cited by
13References
11Claims
0Family size
Inventor
Key dates
| Filing date | Apr 29, 1986 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Apr 29, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B1/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A V-bottom planing hull has longitudinally elongate recesses formed in its bottom surface symmetrically of and parallel to the hull centerline. The recesses are open at the forward and aft ends and are concave downwardly of the hull. The recesses are semicircular in cross-section. The recesses provide lift to the hull as water moves through them during forward motion of the hull. The lift generated in the recesses augments conventional planing forces created by the hull, allowing the hull to move faster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.