Rotatable Front Landing Gear for Small Aircraft Access
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Solution Overview
Problem
Small aircraft designs pose challenges for users entering and leaving the cabin, requiring cumbersome actions and potentially compromising safety due to the placement of the canard wing, which affects access efficiency and safety.
Innovation Solution
The aircraft incorporates a rotatable front landing gear system with hydraulic telescopic rods and a control component, allowing the front landing gear to adjust positions relative to the fuselage, facilitating user access and enhancing safety during flight operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the front landing gear is fixed in a retracted position, then the risk of damage during flight is reduced, but users cannot enter and leave the aircraft easily
Solution Approach 1:
The front landing gear is designed to be rotatable between multiple positions (retracted, intermediate, and extended positions) rather than fixed. The rotating mechanism allows the landing gear to dynamically change its position based on operational requirements, resolving the contradiction between protection during flight and accessibility during ground operations
2Ease of operation
If the front landing gear is extended to facilitate user access, then users can enter and leave easily, but the aircraft cannot bear force evenly during takeoff and landing
Solution Approach 1:
The system provides dynamic positioning of the front landing gear with at least three distinct positions. The intermediate position allows user access while maintaining acceptable force distribution, and the retracted position ensures optimal force distribution during takeoff and landing. The ability to switch between positions resolves the contradiction
3Reliability
If the front landing gear is retracted to reduce damage risk, then safety during flight is improved, but user access becomes difficult and time-consuming
Solution Approach 1:
The rotatable front landing gear system allows rapid transition between retracted and extended positions. Users can quickly rotate the landing gear to the extended position for access and back to the retracted position for flight, minimizing time loss while maintaining safety during different operational phases
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
The adjustable front landing gear system improves user access, reduces the risk of damage during flight, ensures even stress distribution during takeoff and landing, and enhances safety by allowing users to enter and exit the aircraft more easily and safely.
Implementation Method 1
The driving member comprises a hydraulic telescopic rod
Data Source
AI summary
An aircraft having a fuselage and a front landing gear; both sides of the rear bottom of the fuselage are fixedly connected with the rear landing gear; one end of the front landing gear is rotatably connected to the front bottom of the fuselage. When the front landing gear rotates to the first position, the second position and the third position, the connecting line between the end of the front landing gear away from the fuselage and the end of the rear landing gear away from the fuselage intersects with the plane, where the fuselage is located, on the side close to the front of the fuselage, parallel to and intersect on the side close to the rear of the fuselage.