Movable Aircraft Element Position Indicator TRIZ Cases
- Aircraft Landing Gear Door Unlock Sequencing for Latch Failure Detection
A staggered dual-latch unlock sequence uses door-position sensing to detect latch failure and improve landing gear door reliability.
- High-Lift Skew Sensing with Tension Cord and Dual-Spring Linkage
A tension cord, dual springs, and a ball-ramp shunt detect high-lift surface skew with far fewer sensors while maintaining coverage.
- High-Lift Skew Sensing Using Tension Cord Shunt Detection
A tension cord, opposing springs, and shunt actuator detect high-lift control surface skew with far fewer sensors and lower maintenance cost.
- Refueling Boom Connection Detection Using Frequency-Domain Modes
Frequency-domain analysis of boom sensor signals detects tanker boom connection in real time without contact sensors or operator judgment.
- Aircraft Landing Gear Door Unlocking With Sequential Housing Check
Sequentially unlocking dual landing gear door housings verifies lock integrity, detects failures in flight cycles, and supports maintenance alerts.
- Guidance-Tube Cap Opening Indicator for Premature-Activation Control
An automatic release pin drives a spring-loaded push pin and signal switch at the required cap angle, preventing premature flight activation.
- Aircraft Landing Gear Control System with Decoupled Door and Gear Actuation
Decoupling bay door opening from gear retraction enables earlier gear stowage to reduce drag while maintaining structural protection against damage.
- Dynamic Landing Gear Detection Using Flight Data
A system compares altitude, distance to destination, and airspeed against thresholds to generate a landing scenario indication for timely gear deployment.
- Landing Gear Uplock Hook Sensor for Failure Detection
Sensor arrangement detects movable element presence in landing gear hook gap, preventing uncommanded movements from undetected uplock failures.
- Cantilevered Differential Motion Sensor Integrating Arms and Base
Integrating arms with the base eliminates separate springs and hinge pins, reducing assembly complexity and misassembly risks in aircraft motion sensors.
- Hard Landing Indicator Torque Link Visual Mark
A hard landing indicator on aircraft torque links leaves a visual mark upon impact.