Flare Drift Vector Symbol for Aircraft Navigation

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Solution Overview

Problem

Pilots face challenges in accurately estimating the release point for parachute flares due to reliance on hand calculations and wind estimates, leading to inaccuracies in flare placement, which increases workload and risks in dynamic battlefield environments.

Innovation Solution

A method is developed to generate and display a flare drift vector symbol on a navigation display, using inputted flare, wind, and aircraft parameters to provide real-time guidance for accurate flare placement, allowing for dynamic adjustments in flight path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If pilots use hand calculations with estimated wind conditions to determine flare release point, then the calculation process is simple and quick, but the accuracy of flare placement is poor

Engineering Contradiction:
Improveflare placement accuracyVSAvoidcalculation system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces manual hand calculations with an automated computer-based system that processes wind data, aircraft parameters, and flare characteristics to compute precise release points. The system substitutes pilot estimations with algorithmic calculations based on real-time data, significantly improving placement accuracy while managing complexity through software automation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system incorporates real-time feedback by continuously monitoring actual wind conditions, aircraft position, and speed, then dynamically adjusting the calculated release point. The navigation display provides visual feedback showing the predicted flare path and release point, allowing pilots to verify and adjust their approach in real-time, creating a closed-loop control system that improves accuracy.

Inventive Principle:
Principle #23Feedback

2Reliability

If pilots rely on estimated wind conditions for flare release calculations, then the operational process is simple, but the reliability of flare deployment is reduced

Engineering Contradiction:
Improveflare deployment reliabilityVSAvoidoperational simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system performs self-service by automatically gathering wind data, aircraft parameters, and flare characteristics, then computing the release point without requiring pilot expertise in complex calculations. The navigation display automatically updates the release point as aircraft position and wind conditions change, reducing the cognitive burden on pilots while improving reliability through consistent algorithmic processing.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the pilot's mental estimation process with an automated computer system that reliably processes multiple variables simultaneously. This substitution eliminates human error in calculations and provides consistent, repeatable results based on actual measured conditions rather than pilot estimates, thereby improving deployment reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If the flare release point is calculated based on planned wind conditions, then the planning process is straightforward, but the adaptability to changing battlefield conditions is poor

Engineering Contradiction:
Improveadaptability to changing conditionsVSAvoidreal-time calculation system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system transitions from static planned wind conditions to dynamic real-time wind measurements. The navigation display continuously updates the flare release point and predicted path based on current wind data, aircraft position, and speed. This dynamic recalculation allows the system to adapt to changing battlefield conditions, wind shifts, and aircraft trajectory modifications in real-time.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses real-time feedback from wind sensors, aircraft position systems, and navigation data to continuously recalculate the optimal release point. When battlefield conditions change or aircraft deviate from the planned path, the system automatically adjusts the release point calculation, providing adaptability without requiring manual re-planning by the pilot.

Inventive Principle:
Principle #23Feedback

4Measurement precision

If pilots perform detailed hand calculations for flare release, then the theoretical accuracy can be high, but the pilot workload increases

Engineering Contradiction:
Improverelease point accuracyVSAvoidpilot operational efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system performs the complex calculation work autonomously by automatically gathering data from sensors, computing the release point using stored algorithms, and displaying the result on the navigation screen. This self-service capability eliminates the need for pilots to perform manual calculations, maintaining high accuracy while preserving operational efficiency by keeping pilots focused on flight control and situational awareness.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the pilot's cognitive and manual calculation process with an automated computer system that performs all mathematical computations instantaneously. This substitution maintains or improves release point accuracy through precise algorithmic calculation while dramatically reducing pilot workload by eliminating the need for manual arithmetic and estimation during flight operations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS9569973B2Method of generating and displaying a flare drift vector symbol
Publication Date: 2017.02.14 THE BOEING CO
  • US9569973B2 patent drawing
  • US9569973B2 patent drawing
  • US9569973B2 patent drawing

AI summary

The present disclosure is generally directed to a method of generating and displaying a parachute flare drift vector symbol on a navigation display of the aircraft capable of deploying a flare relative to a real-time navigation map. The flare drift vector symbol includes a flare ignition forward/aft distance relative to the aircraft deploying the flare, a flare ignition left/right distance relative to the aircraft deploying the flare, a flare burn vector distance, and a flare burn vector direction. The flare drift vector symbol is generating based on the flare parameters, the wind parameters, the flare drift distance, the flare drift direction and the aircraft parameters.