Rotating Fast-Rope Frame for Cabin Space and Aerodynamic Balance
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Solution Overview
Problem
Existing fast-rope systems for rotary aircraft either consume too much cabin space or impair flight characteristics when mounted externally, failing to maintain aerodynamic performance and maximize cabin space during rapid personnel deployment.
Innovation Solution
A tubular housing and rotatable fast-rope frame structure with a cantilever beam structure that can be locked into various positions, allowing the fast rope to be deployed efficiently without occupying excessive cabin space or disrupting aerodynamics, featuring a tubular housing and a rotatable cylindrical pipe with a cantilever beam structure that extends and retracts as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the fast-rope system is mounted externally on the rotary aircraft, then rapid personnel deployment is enabled, but the aircraft's aerodynamic performance is impaired
Solution Approach 1:
The fast-rope system is extracted from the aircraft's internal cabin space and mounted externally on the fuselage, allowing rapid personnel deployment while isolating the aerodynamic impact to a specific external location rather than compromising overall cabin integrity or internal space
Solution Approach 2:
The system transitions from internal cabin-based deployment to external fuselage-mounted deployment, utilizing the external dimensional space of the aircraft to achieve rapid deployment capability without interfering with internal cabin volume or overall aerodynamic envelope
2Productivity
If the fast-rope system is mounted externally on the rotary aircraft, then rapid personnel deployment is enabled, but cabin space is reduced
Solution Approach 1:
The fast-rope system is extracted from the aircraft's internal cabin space and mounted externally on the fuselage, enabling rapid personnel deployment while preserving the full internal cabin volume for personnel and equipment
Solution Approach 2:
The system utilizes external fuselage space rather than internal cabin volume, deploying personnel through an external mechanism that does not encroach upon the moving object's internal cargo or personnel capacity
3Volume of moving object
If the fast-rope system is mounted internally in the cabin, then cabin space is maximized, but aerodynamic performance is impaired
Solution Approach 1:
The fast-rope system is extracted from the internal cabin environment and relocated to the external fuselage, eliminating any potential aerodynamic interference while maintaining full internal cabin volume availability
Solution Approach 2:
The deployment mechanism is relocated to the external dimensional space of the aircraft fuselage, allowing internal cabin space to remain fully maximized while aerodynamic performance is preserved through proper external mounting design
Data Source
AI summary
A fast-rope system for use with a rotary aircraft includes a tubular housing attached to an interior portion of a cabin and adjacent to an upper portion of an exit door opening of the rotary aircraft and a fast-rope frame structure rotatably coupled to the tubular housing. The fast-rope frame structure includes a cylindrical pipe contained partially within the tubular housing and operable to rotate within the tubular housing and a cantilever beam structure fixedly connected to the cylindrical pipe and configured to have a fast rope attached thereto and move in response to rotation of the cylindrical pipe within the tubular housing.