Off-Airport Landing Site Selection System

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Solution Overview

Problem

Pilots face challenges in quickly selecting suitable emergency landing sites during in-flight emergencies, especially under Instrument Meteorological Conditions (IMC) and single-pilot operations, due to limited time and information availability, with existing GPS features being ineffective for off-airport landings.

Innovation Solution

A system and method that processes flight and geographic data to generate route data, providing information on safe landing areas, including off-airport sites, using a routing algorithm that integrates GPS, aircraft instrumentation, and performance parameters, displaying critical information such as runway length, obstacles, and wind conditions to aid pilots in real-time decision-making.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pilots rely on training and experience to select emergency landing sites, then decision-making is based on conservative information, but the time required to make informed decisions increases and may be insufficient during emergencies

Engineering Contradiction:
Improvedecision reliabilityVSAvoiddecision time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system pre-calculates and stores energy requirement data for multiple potential landing sites before emergencies occur. During emergencies, pilots can quickly access pre-computed information about which sites are reachable from their current position, eliminating the need for time-consuming manual energy calculations while ensuring reliable decision-making based on accurate performance data.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention introduces an energy management system as an intermediary between the pilot and the complex task of selecting landing sites. This system automatically calculates and presents energy-feasible options, acting as a decision-support intermediary that bridges the gap between pilot knowledge and accurate energy state assessment, thereby improving both speed and reliability of emergency landing decisions.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If pilots use conservative training information for emergency landing decisions, then safety margins are maintained, but the availability of actionable landing options is reduced

Engineering Contradiction:
Improvesafety marginVSAvoidlanding site options
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system dynamically adjusts the assessment of landing site feasibility by incorporating real-time energy state parameters and aircraft performance data. Instead of applying fixed conservative margins, the system calculates precise energy requirements for each potential landing site based on current aircraft conditions, allowing pilots to identify viable options that meet actual performance capabilities while maintaining appropriate safety margins.

Inventive Principle:
Principle #35Parameter changes

3Loss of information

If the nearest airport feature is used in GPS receivers, then navigation information is provided, but the feature is ineffective when the aircraft cannot reach the airport due to energy constraints

Engineering Contradiction:
Improvenavigation informationVSAvoidlanding feasibility
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The system continuously monitors aircraft energy state and compares it against the energy requirements for reaching various landing sites. This feedback mechanism dynamically updates the presentation of landing options to the pilot, showing only those sites that are currently reachable given the aircraft's energy state. This prevents pilots from being presented with misleading navigation information about airports that cannot be reached, thereby improving the reliability of landing feasibility assessment.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS7689328B2Determining suitable areas for off-airport landings
Publication Date: 2010.03.30 THE BOEING CO
  • US7689328B2 patent drawing
  • US7689328B2 patent drawing
  • US7689328B2 patent drawing

AI summary

A routing tool is disclosed. In one embodiment, the method and system include receiving flight data and geographic data in the aircraft, and generating route data based on the flight data and the geographic data. The route data provides information about attainable landing areas for the aircraft.