Hydraulic Planing Hull Extensions for Watercraft Stability
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Solution Overview
Problem
There is a need for watercraft to provide more planing area over a water surface without the complexity and cost of hydrofoils, while also being configurable and operable within trailerable vehicle requirements.
Innovation Solution
Planing hull extensions that can be mounted along the sides of a watercraft, hydraulically operated to extend the beam of the hull, and adjustable based on throttle position and sea conditions, providing additional lift and stability without a fulcrum point, thus reducing drag and enhancing planing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If hydrofoils are used to provide additional lift and reduce drag, then planing performance is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the hydrofoil concept and replaces it with simpler planing hull extensions that attach to the sides of the hull. These extensions provide similar lift and drag reduction functions without the complexity of full hydrofoil systems, pivot mechanisms, and control apparatus.
Solution Approach 2:
The patent employs simple, inexpensive planing hull extensions made from basic materials rather than complex, expensive hydrofoil systems. These extensions are designed to be straightforward structural additions that can be easily manufactured and installed without requiring sophisticated mechanical or hydraulic systems.
2Area of moving object
If hull beam width is increased to provide more planing area, then planing capability is improved, but trailerability is reduced due to roadway size limitations
Solution Approach 1:
The patent employs dynamically adjustable hull extensions that can be positioned in different configurations. The extensions can be deployed outward to increase planing area when needed for performance, and retracted or positioned inward when trailerability is required, allowing the hull to adapt its effective beam width dynamically.
Solution Approach 2:
The patent divides the hull structure into segments by adding separate, detachable planing hull extensions that can be independently positioned. This segmentation allows the planing area to be increased without permanently increasing the hull's permanent beam width, as the extensions can be reconfigured or removed for trailer transport.
3Area of moving object
If fixed hull extensions are used to increase beam width, then planing area is increased, but adaptability to different sea conditions and throttle positions is reduced
Solution Approach 1:
The patent employs dynamically adjustable hull extensions that can be positioned in different configurations. The extensions can be deployed outward to increase planing area when needed for performance, and retracted or positioned inward when trailerability is required, allowing the hull to adapt its effective beam width dynamically.
Solution Approach 2:
The patent enables parameter changes in the hull extension configuration based on operating conditions. The extensions can be adjusted in position, angle, and deployment state according to sea conditions, throttle position, and vessel loading, allowing optimization of planing performance for different operational scenarios.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances stability and reduces drag, allowing watercraft to operate efficiently and comfortably within trailerable size limits, optimizing speed and fuel efficiency while maintaining stability across various sea conditions.
Implementation Method 1
Each of the port hull extension and the starboard hull extension have a front end which yields lift under water flow to initiate planing as the watercraft hull begins moving
Data Source
AI summary
Planing hull extensions for watercraft are disclosed which may be mounted along the sides of the hull of a watercraft such as a boat or yacht. Typically, the hull extensions may be disposed along the side chines of the hull such that they extend the effective beam of the hull. The hull extensions may aid stabilizing the watercraft and/or inhibit wetting of the sides of the hull as well. In some cases, the hull extensions may be hydraulically operated between a closed position against the hull (or into a pocket along the side of the hull) and a fully open position substantially extending the width of the hull bottom. The position of the hull extensions may be automatically varied based upon throttle position, e.g. fully open at low throttle to fully closed against the hull at full throttle. Different hull extension position profiles may be used according to loading and water conditions.