Multi-tank aerial firefighting system for center of gravity stability
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Solution Overview
Problem
Aerial firefighting systems face challenges in maintaining stability and safety while achieving large capacity and high flow rate delivery of dispersing materials, as large capacity tanks can cause instability due to dynamic changes in the aircraft's center of gravity during material dispersal.
Innovation Solution
The implementation of a multi-tank system with tanks positioned forward and rearward of the aircraft's center of gravity, equipped with ventral openings and closures that can be opened and closed synchronously or at different rates to maintain stability and ensure efficient dispersal of materials like water or fire retardant, while the fuselage keel beam is modified to accommodate the weight distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If large capacity tanks are used to increase material storage capacity, then the quantity of dispersing material is improved, but the aircraft stability deteriorates due to dynamic changes in center of gravity
Solution Approach 1:
The single large tank is divided into multiple smaller tanks distributed at different locations within the fuselage. This segmentation allows the system to achieve the required total storage capacity while distributing the weight across multiple points, thereby reducing dynamic center of gravity changes and maintaining aircraft stability during material dispersal.
2Productivity
If large capacity tanks are installed to meet minimum flow rate standards, then the productivity is improved, but the aircraft stability deteriorates
Solution Approach 1:
Multiple tanks are configured with individual discharge openings and closures that can operate independently or in coordination. This segmentation enables the system to achieve high flow rates by opening multiple discharge points simultaneously while distributing the weight load, thereby maintaining aircraft stability during high-productivity operations.
Solution Approach 2:
The system incorporates dynamically controllable closures for each tank opening that can be opened or closed independently based on operational requirements. This dynamic control allows optimization of flow rate while managing center of gravity changes, enabling high productivity without compromising aircraft stability.
3Stability of the object's composition
If multiple tanks are positioned forward and rearward of the center of gravity to maintain stability, then the aircraft stability is improved, but the device complexity increases
Solution Approach 1:
The tank system is segmented into multiple units positioned at strategic locations forward and rearward of the center of gravity. Each segment is a complete, self-contained module with its own discharge mechanism, simplifying the overall system architecture while achieving stability through distributed weight configuration.
Solution Approach 2:
Each tank module is designed as a universal, multi-functional unit that can store different types of dispersing materials and discharge through standardized openings. This universality reduces system complexity by using repeated, standardized components rather than custom-designed unique tanks for each function.
Data Source
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AI summary
A multi-tank system and aircraft for dispersing firefighting materials includes a fuselage, a pair of wings, a first storage tank, a second storage tank, a first opening, a second opening, a first closure, a second closure, and an actuator. The first opening is disposed forward of a center of gravity of the aircraft and the second opening is disposed rearward of the center of gravity of the aircraft to maintain stability of the aircraft. The first opening is coupled to the first storage tank and the second opening is coupled to the second storage tank. The actuator is configured to open at least one of the first closure and the second closure, in order to disperse firefighting materials such as water, fire retardant, or a mixture thereof.