Extensible Flight Suit Panels for Pilot Mobility
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Solution Overview
Problem
Existing flight suits are often too hot, rigid, or uncomfortable for pilots, particularly when sitting, and can restrict limb movement during tasks like using headphones or accessing aircraft controls.
Innovation Solution
A flight suit design featuring extensible shoulder and leg panels made from stretch fabric that provides at least 45% extension in the weft direction and less than 45% in the warp direction, ensuring comfort and mobility while maintaining durability and breathability, with specific panels like the elbow, crotch, and knee areas designed for optimal flexibility and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional flight suit materials are used, then durability and breathability are maintained, but mobility and comfort are restricted
Solution Approach 1:
The flight suit is divided into multiple panels with different stretch characteristics. The shoulder portions use fabric with at least 45% stretch in weft direction for mobility, while other areas use traditional durable materials. This segmentation allows each zone to optimize for its specific functional requirements without compromising overall suit integrity.
Solution Approach 2:
Different regions of the flight suit are assigned different material properties tailored to local needs. The shoulder portions receive high-stretch fabric to accommodate arm movement and sitting positions, while maintaining traditional durable materials in areas requiring protection and longevity. This local differentiation resolves the contradiction between mobility and durability.
2Strength
If rigid materials are used for durability, then strength is improved, but comfort in sitting position deteriorates
Solution Approach 1:
The suit structure is segmented into rigid and flexible zones. Shoulder portions are isolated as separate panels with dedicated stretch fabric, while the torso and other areas maintain traditional rigid durable materials. This allows the sitting comfort requirement to be met locally without sacrificing overall suit durability.
Solution Approach 2:
The shoulder portions are assigned a local quality of high elasticity to specifically address sitting comfort, while the rest of the suit maintains its traditional durable construction. This localized approach allows comfort improvement in critical areas without compromising the overall structural integrity and durability of the flight suit.
3Ease of operation
If extensible fabric is used in shoulder portions, then mobility is improved, but thermal retention increases causing overheating
Solution Approach 1:
The extensible fabric is segmented to cover only the shoulder portions rather than the entire suit. This limited application provides necessary mobility where needed while minimizing the overall thermal retention increase. The rest of the suit uses traditional materials with more favorable thermal properties for heat dissipation.
Solution Approach 2:
The high-stretch fabric is applied locally to shoulder portions where mobility is critical, rather than throughout the entire suit. This localized extensibility provides the required range of motion while limiting the total surface area with high thermal retention material, thus reducing overall overheating risk.
4Ease of operation
If stretch fabric with high weft extension is used, then limb movement freedom is improved, but fabric stability in warp direction deteriorates
Solution Approach 1:
The anisotropic stretch fabric is applied specifically to shoulder portions where lateral expansion is needed for movement, while maintaining adequate warp direction stability. The directional stretch properties (≥45% weft, <45% warp) are optimized for the specific movement patterns required at the shoulders, providing movement freedom without excessive distortion in the warp direction.
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
The suit provides enhanced comfort, mobility, and durability, ensuring pilots can perform tasks without restriction while maintaining resistance and breathability, making it suitable for various flying apparatuses.
Implementation Method 1
comprising each a stretch fabric that is extensible by at least 45 % in a weft direction and by less than 45 % in a warp direction
Data Source
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AI summary
There are provided flight suits that can be useful for helicopter pilots, airplane pilots, glider pilots etc. Pilots of such vessels have particular needs in terms of equipment and flight suits. The flight suits of the present disclosure allow, for example, for providing pilots with flight suits that are comfortable when worn in a sitting position. Moreover, these flight suits do not unduly restrict movement of the limbs when the pilot carries out various actions such as taking hold of headphones and reaching for the aircraft dashboard. For example, the flight suits can comprise a torso portion defining two arm openings; two shoulder portions that are extensible, each coupled to a different arm opening of the torso; two sleeves coupled each to a different shoulder portion, each sleeve optionally comprising an extensible elbow panel; and a lower portion comprising an extensible crotch portion and two leg portions.