Modular Fixed-VTOL Aircraft With Line-Replaceable Modules for Rapid Repair
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Solution Overview
Problem
Existing VTOL drone aircraft are inflexible in handling different types and sizes of cargo and require significant downtime for repairs or replacements, necessitating multiple drone sizes and extended service interruptions.
Innovation Solution
The implementation of modular components in the form of self-contained line replaceable modules (LRMs) and units (LRUs) that allow for interchangeable and removable aircraft components, enabling quick diagnostics and repairs without extensive disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional non-modular VTOL drone aircraft are used, then structural integrity and system reliability are maintained, but the aircraft requires significant downtime for repairs and cannot adapt to different cargo sizes
Solution Approach 1:
The VTOL drone aircraft is divided into multiple self-contained line replaceable modules (LRMs) including wing assemblies, tail assemblies, booms, and engines. Each LRM contains all necessary components and systems to function independently, allowing rapid replacement of faulty modules without disassembling the entire aircraft. This segmentation enables maintenance personnel to quickly swap out damaged components, significantly reducing repair downtime while maintaining the ability to adapt to different cargo configurations.
2Adaptability or versatility
If multiple drone sizes are used to handle different cargo types, then cargo versatility is improved, but device complexity and operational overhead increase
Solution Approach 1:
A single VTOL drone aircraft platform is designed with universal line replaceable modules that can be interchanged to create different configurations. The standardized LRM interfaces allow the same basic airframe to accommodate various wing spans, tail configurations, and engine types, enabling one aircraft to perform multiple cargo delivery roles. This multi-functionality eliminates the need to operate and maintain multiple specialized aircraft while maintaining versatility across different cargo types and sizes.
3Reliability
If significant components require repair or replacement, then system reliability is improved, but the drone becomes out of service for significant time periods
Solution Approach 1:
Line replaceable modules are designed to be pre-assembled, pre-tested, and pre-stored in readiness for rapid deployment. When a module requires repair or replacement, fully functional replacement modules are already prepared and available, allowing immediate swap-out without waiting for repair processes. This preliminary preparation of replacement modules ensures high operational availability while maintaining strict quality standards for component reliability.
Data Source
AI summary
A modular VTOL drone aircraft can include a primary processor, a plurality of propellers, one or more line replacement modules (“LRMs”) and one or more line replacement units (“LRUs”). LRMs can include a fuselage, a center wing, two booms, two outer wings, two vertical tails, a horizontal tail, and/or an engine. LRUs can include an avionics module, a radio communications assembly, a sensor package assembly, an ISR assembly, and/or a deployable payload assembly. Each LRM and LRU can be self-contained and removably attached to the remainder of the VTOL drone. Each LRM can be readily interchanged with another similar LRM, which can be of a different size. LRM interfaces can include a blind mate electric connector and/or a floating connector.