Reduced Flaps Takeoff Advice System for Aircraft
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current aircraft systems lack efficient methods to advise flight crews on reduced flaps takeoff and landing options, which can lead to increased fuel consumption, noise disturbances, and suboptimal trajectory control due to limited situational awareness regarding flap configurations and runway conditions.
Innovation Solution
A system and method that utilize a processor to calculate and present takeoff or landing performance parameters for various flap configurations and runways, including alerts for noise restrictions, allowing flight crews to select optimal flap angles and runways for reduced flaps operations based on weather and runway data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full flaps deployment is used for takeoff and landing, then safety and control are improved, but fuel consumption increases and noise disturbance increases
Solution Approach 1:
The system changes the flap configuration parameter from full deployment to reduced deployment based on calculated performance parameters. The flight management system determines optimal flap angles that maintain adequate control while reducing drag and fuel consumption, transforming the flap parameter from a fixed full-deployment setting to a variable optimized setting.
2Reliability
If full flaps deployment is used for takeoff and landing, then safety and control are improved, but noise disturbance near airports increases
Solution Approach 1:
The system modifies the flap configuration parameter from full deployment to reduced deployment, which lowers the pitch angle and stabilizes the trajectory during approach and climb phases. This parameter change reduces the aerodynamic noise generated by full flaps while maintaining adequate control through optimized flap angle selection.
3Loss of energy
If reduced flaps configuration is used for takeoff and landing, then fuel consumption is reduced and noise is reduced, but situational awareness and decision-making capability deteriorate due to lack of performance data
Solution Approach 1:
The system introduces feedback by calculating and displaying performance parameters (such as reference speeds, required runway lengths, and climb gradients) for various flap configurations. This feedback loop provides the flight crew with quantitative data on how different flap settings affect aircraft performance, enabling informed decision-making when selecting reduced flaps configurations.
Solution Approach 2:
The flight management system acts as an intermediary that processes weather data, runway conditions, and aircraft performance data to generate recommended flap configurations. This intermediary provides the flight crew with expert-derived guidance, bridging the gap between complex performance calculations and pilot decision-making.
4Loss of energy
If reduced flaps configuration is used for takeoff and landing, then fuel consumption is reduced, but trajectory stability deteriorates due to higher pitch and less steady flight path
Solution Approach 1:
The system optimizes the flap configuration parameter to find the optimal balance between drag reduction and trajectory stability. By calculating performance parameters for various flap angles, the system identifies reduced flaps settings that maintain adequate pitch control and trajectory stability while still providing fuel savings and noise reduction benefits.
Data Source
AI summary
Methods and systems for providing reduced flaps takeoff or landing advice in an aircraft. The methods and systems include a display device and a processor in operable communication with the display device. The processor is configured to execute program instructions. The program instructions are configured to cause the processor to receive takeoff or landing performance data including weather data and runway conditions data for a plurality of runways at a destination aerodrome, calculate values of takeoff or landing performance parameters for a plurality of flap configurations for each of the plurality of runways, and present, on the display device, at least one of the values of takeoff or landing performance parameters.