Removable Payload Loading for Low-Clearance Aircraft Bays
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Solution Overview
Problem
Conventional loading systems are inadequate for small internal payload bays in future aircraft due to restricted access and low ground clearance, necessitating a solution that does not increase aircraft weight.
Innovation Solution
A removable payload transporter system with winches, fixing points, and lifting straps that allow precise alignment and lifting of payloads into internal payload bays without permanent installation, using alignment lasers and sensors for positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional hydraulic loading equipment is used, then payload loading can be performed in aircraft with sufficient ground clearance and bay size, but the equipment cannot be used in future aircraft with low ground clearance and small internal payload bays
Solution Approach 1:
The loading system is divided into separate modular components: a payload transporter that moves the payload to the aircraft, and a separate lifting system with winches and straps that performs the actual loading. This segmentation allows each component to be optimized independently, enabling operation in low-clearance environments where conventional integrated hydraulic equipment cannot access the payload bay.
Solution Approach 2:
The payload transporter acts as an intermediary device that bridges the gap between ground level and the aircraft's internal payload bay. It transports the payload to the aircraft exterior and positions it for lifting, eliminating the need for direct access to the payload bay during the initial positioning phase, thus solving the accessibility problem in low-clearance configurations.
2Reliability
If permanent loading equipment is installed in the aircraft, then loading capability is ensured, but the aircraft weight increases
Solution Approach 1:
The loading equipment transitions from a static permanent installation to a dynamic removable system. The winches, fixing points, and lifting straps can be attached when needed for loading operations and removed afterward, allowing the aircraft to operate with minimal weight during flight while maintaining full payload loading capability when required.
Solution Approach 2:
The loading equipment is discarded (removed) from the aircraft after payload loading is complete and recovered (reattached) when the next loading operation is needed. This approach eliminates the need for permanent weight addition while ensuring reliability of the loading capability is maintained on-demand.
3Measurement precision
If alignment precision is improved using sensors and lasers, then payload positioning accuracy increases, but the system complexity increases
Solution Approach 1:
The alignment system replaces complex mechanical measurement and positioning mechanisms with optical sensors and laser alignment tools. These electronic/optical systems provide precise measurement and feedback with simpler mechanical components, reducing overall system complexity while improving positioning accuracy.
Solution Approach 2:
The alignment sensors and lasers provide automatic feedback and guidance for positioning the payload transporter and payload. The system self-corrects positioning errors through real-time measurement and control, reducing the need for complex manual alignment procedures and specialized operator skills.
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
Enables efficient and weight-efficient payload loading into low-clearance internal bays by ensuring accurate alignment and lifting without adding permanent weight to the aircraft.
Implementation Method 1
a plurality of alignment lasers configured to project a beam of visible light onto an underside of the vehicle
Implementation Method 2
Each of the plurality of alignment sensors may comprise a light source and a light sensor for detecting light reflected from a respective alignment target disposed on the vehicle
Data Source
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AI summary
An apparatus for loading a payload into a vehicle, the apparatus comprising: a payload transporter comprising a cradle configured to support the payload; one or more winches configured to be removably attached to a vehicle; one or more fixing points configured to be removably attached to the vehicle; and one or more lifting straps configured to be secured between the one or more winches and the one or more fixing points and to lift the cradle from the payload transporter into a payload bay of the vehicle.