Aircraft Arresting Chassis Height Adjustment With Hydraulic Backup

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Solution Overview

Problem

Conventional mobile aircraft arresting systems face issues with height constraints when loaded into shipping containers and are vulnerable to hydraulic system failures.

Innovation Solution

The system includes a chassis with adjustable wheel systems and a locking mechanism to accommodate different configurations for towing and loading, and a dual hydraulic system for redundancy with external connectivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the chassis is elevated to sufficient height for towing clearance, then the system can be towed effectively, but the system becomes too tall for standard ISO shipping containers

Engineering Contradiction:
Improvechassis heightVSAvoidshipping container compatibility
Core Design Contradiction:
Length of moving objectVSVolume of moving object

Solution Approach 1:

The lifting system enables the chassis height to be dynamically adjusted between a raised configuration for towing and a lowered configuration for shipping. The system can transition between these states based on operational requirements, allowing the same equipment to adapt to different height constraints.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The lifting system is divided into separate hydraulic components (cylinder, pump, reservoir, valves) that can be independently controlled. This segmentation allows precise control over the chassis height adjustment, enabling the system to achieve the exact height needed for towing while maintaining compatibility with shipping container dimensions.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the chassis is grounded in the second configuration for anchoring, then the system can be anchored securely, but the system cannot be rolled into shipping containers

Engineering Contradiction:
Improveanchoring capabilityVSAvoidloading into container
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system can dynamically transition between a grounded configuration for secure anchoring during operations and a raised configuration for easy loading into shipping containers. The hydraulic lifting system enables this dynamic repositioning without requiring disassembly or complex manual handling.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If an on-board hydraulic system is used, then the system is self-contained, but failure of the hydraulic system renders the hydraulic components inoperable

Engineering Contradiction:
Improveself-containmentVSAvoidhydraulic system reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The hydraulic quick-connect couplings serve as intermediaries that enable the system to transfer hydraulic fluid to an external source upon failure of the on-board hydraulic system. This intermediary connection point allows rapid switching between self-contained operation and external hydraulic support, maintaining system reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The hydraulic system incorporates a reservoir and pump that can be quickly connected to an external hydraulic source through quick-connect couplings. This preparation ensures that if the on-board hydraulic system fails, the system can immediately transition to external hydraulic support, cushioning against the impact of hydraulic failure.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 easy loading into shipping containers and ensures continuous hydraulic operation by integrating an external hydraulic source, enhancing system reliability and versatility.

Implementation Method 1

a hydraulic system supported by the chassis and operable to supply hydraulic fluid to the hydraulic component. The hydraulic system includes a fluid reservoir for containing hydraulic fluid; a first supply line and second supply line for supplying the hydraulic fluid from the fluid reservoir to the hydraulic component

Methodology Applied
Scientific EffectHydraulic fluid flow:

Implementation Method 2

a lifting system that adjustably couples the wheel system to the chassis. The lifting system is operable between a first configuration that arranges the chassis in a raised position, a second configuration that arranges the chassis in a lowered position

Methodology Applied
Scientific EffectHydraulic force: Hydraulic Press

Implementation Method 3

the arresting system includes a hydraulic braking system that can apply braking force to the reel to inhibit further payout of the tape

Methodology Applied
Scientific EffectHydraulic braking: Hydraulic Press

Data Source

PatentUS20260028137A1Mobile aircraft arresting system
Publication Date: 2026.01.29 CURTISS-WRIGHT FLOW CONTROL SERVICE LLC D B A ENGINEERED ARRESTING SYSTEMS - ESCO
  • US20260028137A1 patent drawing
  • US20260028137A1 patent drawing
  • US20260028137A1 patent drawing

AI summary

A mobile aircraft arresting system includes a chassis; a rotatable reel supported by the chassis; a wheel system for supporting the chassis, the wheel system including a first wheel and a second wheel; a lifting system that adjustably couples the wheel system to the chassis; and a locking system. The lifting system is operable between a first configuration that arranges the chassis in a raised position, a second configuration that arranges the chassis in a lowered position, and an intermediate configuration that arranges the chassis in an intermediate position between the raised position and lowered position. The locking system is operable to the lock the lifting system in the intermediate configuration.