Hydrofoil Second Stabilizer for Longitudinal Stability
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Solution Overview
Problem
Existing hydrofoil water vehicles suffer from poor lateral stability and require complex mechanics and high driving power, making them difficult to control, especially for learners, and have high manufacturing costs.
Innovation Solution
A hydrofoil water vehicle design incorporating a second horizontal stabilizer that adjusts the angle of attack passively, without additional movable parts or high energy sources, improving longitudinal stability and maintaining a consistent flight height by cyclically changing the position of the stabilizer relative to the water surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If additional driven units are used to create lifting force, then the hydrofoil can change height above water surface, but lateral stability deteriorates and control becomes difficult
Solution Approach 1:
The patent removes the complex driven units and ailerons from the hydrofoil system, extracting only the essential stabilizing function. The simplified hydrofoil without movable controllable parts eliminates the lateral stability problems while maintaining height adjustment through passive hydrodynamic principles.
Solution Approach 2:
The hydrofoil system uses the water environment itself to provide stability and control. The shape and orientation of the hydrofoil interact with water flow to automatically maintain lateral stability and enable height adjustment without requiring additional active control mechanisms or energy input.
2Quantity of substance
If a two-wing hydrofoil with ailerons is used, then load capacity increases, but device complexity increases due to movable elements
Solution Approach 1:
The patent extracts only the load-bearing function from the complex two-wing hydrofoil system with ailerons. The simplified single hydrofoil design maintains sufficient load capacity while eliminating all movable controllable elements, reducing mechanical complexity to its essential minimum.
Solution Approach 2:
The patent replaces expensive, complex mechanical control systems with simple, passive hydrodynamic structures. The fixed hydrofoil design uses basic materials and construction methods, making the system more cost-effective and easier to manufacture while maintaining functional performance.
3Stability of the object's composition
If double hydrofoil is used to prevent lateral rocking, then stability improves, but area increases and efficiency decreases
Solution Approach 1:
The patent applies local quality by optimizing the shape, size, and orientation of the single hydrofoil to provide both lateral stability and vertical lift functions that would otherwise require separate components. The hydrofoil is designed with specific local characteristics that maximize efficiency while maintaining stability.
4Ease of operation
If controllable movable elements like ailerons are added, then control precision improves, but manufacturing cost increases
Solution Approach 1:
The patent removes all movable controllable elements such as ailerons from the hydrofoil system, extracting only the essential stabilization function. This simplification dramatically reduces manufacturing complexity and cost while maintaining adequate control through passive hydrodynamic principles.
Solution Approach 2:
The hydrofoil system achieves control precision through self-service hydrodynamic mechanisms where the interaction between the hydrofoil shape and water flow automatically provides stabilizing forces and control responses, eliminating the need for expensive mechanical control systems.
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
Enhances longitudinal stability, prevents uncontrolled emergence from the water, improves flight stability, and reduces manufacturing costs through a simple and cost-effective design, allowing for easier control and operation.
Implementation Method 1
the additional second horizontal stabilizer, which creates additional lifting force while in the water, which leads to a longitudinal change in the angle of attack of the front wing
Implementation Method 2
When moving in an aquatic environment, the double hydrofoil does not protrude above the water surface
Data Source
AI summary
The water vehicle with hydrofoil includes an above-water platform, a supporting mast connecting the above-water platform with a hydrofoil, including a fuselage with a front wing and a first horizontal stabilizer, drive means (6) for creating horizontal thrust and a second horizontal stabilizer located in the vertical direction between the fuselage and the above-water platform, where the second horizontal stabilizer in the longitudinal direction is being located behind the front wing. It is possible that the second horizontal stabilizer is mounted to the above-water platform, the mast, to the additional structurally supporting parts, to the parts that serve to change the angle of attachment of the main horizontal stabilizer, to the fuselage or drive means by means of a support element with the possibility of changing the vertical position.