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Title:
Leeway angle indicator
Abstract:
A system which indicates the true leeway angle of a vessel, regardless of the heel of the vessel. A generally vertically-extending vane has its lowermost end submersed in the water in which the vessel is floating. The vane is rotatably journaled in a support, and an indicator attached to the upper end thereof for indicating the angle of the vane with respect to the vessel. The support is in turn pivotally mounted along a generally horizontal axis. A servo system is coupled to the vane support and serves to keep the vane aligned in a true vertical orientation. A speed sensing mechanism may be associated with the vane for obtaining information regarding the speed of the vessel.
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Inventors:
Mascia, Anthony (Port Chester, NY, US)
Application Number:
805112
Filing Date: 1977-06-09 Publication_date: 1978-05-09 Assignee:
Primary Class(es):
73/180
Other Classes:
US Patent Ref:
| 7912 | Jan, 1851 | Wilder | 73/180. | | 190045 | Apr, 1877 | Iffland | 73/180. | | 1777869 | May, 1876 | McNabb | 73/180. | | 2818730 | Jan, 1958 | Giannini et al. | 73/180. | | 3475957 | Nov, 1969 | Hiszpanski | 73/180. |
Other Refs:
Other References:
Marchay "Sailing Theory and Practice" 1964 pp. 312-313 pub. by Dodd Mead & Co. |